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Model infoModelsSnapshot: 15 Oct 2026

Speechmatics / Speechmatics STT

Enhanced

Rolling Enhanced speech-recognition family with selectable languages and language packs.

availableClosed weightsTranscriptionSpeech translation
Official documentation (opens in a new tab)Reviewed 13 Oct 2026
10 of 21 specification fields collected
File upload limitLess than 1 GB for direct Batch upload; larger files via fetch URLSee specification notes below
Transcription outputTextSee specification notes below
Input billingSee ratesSpeechmatics API
Output billingSee ratesPublished units and conditions below

Specifications

Provider-documented facts. “Not collected” means we have not verified that field yet, not that the feature is unsupported.

Context / input limit
Not collected
Maximum output
Not collected
Reasoning
Not collected
Tool calling
Not collected
Structured output
Not collected
Fine-tuning
Not collected
Knowledge cutoff
Not collected
Release date
Not collected
Parameters
Not collected
Architecture
Not collected
Languages
View all 62 entries
  • Arabic (ar)
  • Arabic & English bilingual (ar_en)
  • Bashkir (ba)
  • Basque (eu)
  • Belarusian (be)
  • Bengali (bn)
  • Bulgarian (bg)
  • Cantonese (yue)
  • Catalan (ca)
  • Croatian (hr)
  • Czech (cs)
  • Danish (da)
  • Dutch (nl)
  • English (en)
  • Esperanto (eo)
  • Estonian (et)
  • Finnish (fi)
  • French (fr)
  • Galician (gl)
  • German (de)
  • Greek (el)
  • Hebrew (he)
  • Hindi (hi)
  • Hungarian (hu)
  • Indonesian (id)
  • Interlingua (ia)
  • Irish (ga)
  • Italian (it)
  • Japanese (ja)
  • Korean (ko)
  • Latvian (lv)
  • Lithuanian (lt)
  • Malay (ms)
  • Malay & English bilingual (en_ms)
  • Maltese (mt)
  • Mandarin (cmn)
  • Mandarin & English bilingual (cmn_en)
  • Mandarin Malay Tamil & English (cmn_en_ms_ta)
  • Marathi (mr)
  • Mongolian (mn)
  • Norwegian (no)
  • Persian (fa)
  • Polish (pl)
  • Portuguese (pt)
  • Romanian (ro)
  • Russian (ru)
  • Slovakian (sk)
  • Slovenian (sl)
  • Spanish (es)
  • Spanish & English bilingual (es (with domain=bilingual-en))
  • Swahili (sw)
  • Swedish (sv)
  • Tagalog (Filipino) & English bilingual (tl)
  • Tamil (ta)
  • Tamil & English bilingual (en_ta)
  • Thai (th)
  • Turkish (tr)
  • Ukrainian (uk)
  • Urdu (ur)
  • Uyghur (ug)
  • Vietnamese (vi)
  • Welsh (cy)
Source for Languages (opens in a new tab)

Language and pack entries, not an inflated count of unique languages. Batch auto-detection is configured separately.

Context caching
Not collected
Maximum audio file
Less than 1 GB for direct Batch upload; larger files via fetch URLSource for Maximum audio file (opens in a new tab)
Native model options
Set model to enhanced or standard; deprecated operating_point remains compatible.Source for Native model options (opens in a new tab)
Language pack selectors
View all 61 entries
  • ar: Arabic
  • ar_en: Arabic / English
  • ba: Bashkir
  • be: Belarusian
  • bg: Bulgarian
  • bn: Bengali
  • ca: Catalan
  • cmn: Mandarin
  • cmn_en: English / Mandarin
  • cmn_en_ms_ta: English / Mandarin / Malay / Tamil
  • cs: Czech
  • cy: Welsh
  • da: Danish
  • de: German
  • el: Greek
  • en: English
  • en_ms: English / Malay
  • en_ta: English / Tamil
  • eo: Esperanto
  • es: Spanish
  • et: Estonian
  • eu: Basque
  • fa: Persian
  • fi: Finnish
  • fr: French
  • ga: Irish
  • gl: Galician
  • he: Hebrew
  • hi: Hindi
  • hr: Croatian
  • hu: Hungarian
  • ia: Interlingua
  • id: Indonesian
  • it: Italian
  • ja: Japanese
  • ko: Korean
  • lt: Lithuanian
  • lv: Latvian
  • mn: Mongolian
  • mr: Marathi
  • ms: Malay
  • mt: Maltese
  • nl: Dutch
  • no: Norwegian
  • pl: Polish
  • pt: Portuguese
  • ro: Romanian
  • ru: Russian
  • sk: Slovakian
  • sl: Slovenian
  • sv: Swedish
  • sw: Swahili
  • ta: Tamil
  • th: Thai
  • tl: Tagalog
  • tr: Turkish
  • ug: Uyghur
  • uk: Ukrainian
  • ur: Urdu
  • vi: Vietnamese
  • yue: Cantonese
Source for Language pack selectors (opens in a new tab)

Live public EU1 discovery response; excludes Norwegian Nynorsk nn, which appears only in translation metadata. Not an Agent STT capabilities inventory.

Specialized domains
ar_en: medical, da: medical, de: medical, en: finance, medical, es: bilingual-en, medical, fi: medical, fr: medical, nl: medical, no: medical, sv: medicalSource for Specialized domains (opens in a new tab)

Domains have operating-point restrictions; medical requires enhanced. This is the public service inventory, not an assertion that every domain works on both models.

Supplied context limit
Up to 20,000 custom dictionary items per Batch job or Realtime sessionSource for Supplied context limit (opens in a new tab)

Vocabulary entries, not a token context window or fine-tuning.

Access & pricing

Prices belong to an endpoint and billing tier. A provider listing does not guarantee access for every account or region.

API model ID
enhanced
Access
API key and permitted account usage required; language entitlement may depend on contract.
Regions
Europe EU1
API endpoint URL
https://eu1.asr.api.speechmatics.com/v2/jobs/Source for API endpoint URL (opens in a new tab)
Maximum audio file
Less than 1 GB for direct upload; larger files can be fetched by URLSource for Maximum audio file (opens in a new tab)
Request quotas
Guidance: 10 submissions/s and 50 status reads/s; backstop 20,000 concurrent jobsSource for Request quotas (opens in a new tab)
Request mode
Asynchronous Batch job; retrieve results or use completion notificationsSource for Request mode (opens in a new tab)
Required request fields
model=enhanced; language=<language or pack>; operating_point is a legacy equivalentSource for Required request fields (opens in a new tab)
Regional processing
Calls and subsequent job retrieval use this region’s endpoint.Source for Regional processing (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
Speech recognitionOptional translation add-on1$0.65audio hour
Speech recognitionOptional chapters add-on1$0.40audio hour
Speech recognitionOptional topics add-on1$0.20audio hour
Speech recognitionOptional summaries add-on1$0.12audio hour
Speech recognitionOptional sentiment add-on1$0.12audio hour
Speech recognitionBatch transcription2$0.75audio hour

Rate conditions

  1. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate. Optional add-on charge, additional to transcription only when enabled; do not sum unselected features.
  2. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate.
Pricing source (opens in a new tab)

Data & enterprise terms

Provider documentation says Realtime processing is in memory without storing audio or transcripts; Batch jobs retain audio, transcripts and configuration for seven days, with earlier deletion available. Current terms require opt-in before using customer data for training. Discounts based on training-data use require explicit opt-in; TTS preview documentation describes a different retention policy.

Read the service policy (opens in a new tab)
API model ID
enhanced
Access
API key and permitted account usage required; language entitlement may depend on contract.
Regions
United States US1
API endpoint URL
https://us1.asr.api.speechmatics.com/v2/jobs/Source for API endpoint URL (opens in a new tab)
Maximum audio file
Less than 1 GB for direct upload; larger files can be fetched by URLSource for Maximum audio file (opens in a new tab)
Request quotas
Guidance: 10 submissions/s and 50 status reads/s; backstop 20,000 concurrent jobsSource for Request quotas (opens in a new tab)
Request mode
Asynchronous Batch job; retrieve results or use completion notificationsSource for Request mode (opens in a new tab)
Required request fields
model=enhanced; language=<language or pack>; operating_point is a legacy equivalentSource for Required request fields (opens in a new tab)
Regional processing
Calls and subsequent job retrieval use this region’s endpoint.Source for Regional processing (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
Speech recognitionOptional translation add-on1$0.65audio hour
Speech recognitionOptional chapters add-on1$0.40audio hour
Speech recognitionOptional topics add-on1$0.20audio hour
Speech recognitionOptional summaries add-on1$0.12audio hour
Speech recognitionOptional sentiment add-on1$0.12audio hour
Speech recognitionBatch transcription2$0.75audio hour

Rate conditions

  1. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate. Optional add-on charge, additional to transcription only when enabled; do not sum unselected features.
  2. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate.
Pricing source (opens in a new tab)

Data & enterprise terms

Provider documentation says Realtime processing is in memory without storing audio or transcripts; Batch jobs retain audio, transcripts and configuration for seven days, with earlier deletion available. Current terms require opt-in before using customer data for training. Discounts based on training-data use require explicit opt-in; TTS preview documentation describes a different retention policy.

Read the service policy (opens in a new tab)
API model ID
enhanced
Access
API key and permitted account usage required; language entitlement may depend on contract.
Regions
Australia AU1
API endpoint URL
https://au1.asr.api.speechmatics.com/v2/jobs/Source for API endpoint URL (opens in a new tab)
Maximum audio file
Less than 1 GB for direct upload; larger files can be fetched by URLSource for Maximum audio file (opens in a new tab)
Request quotas
Guidance: 10 submissions/s and 50 status reads/s; backstop 20,000 concurrent jobsSource for Request quotas (opens in a new tab)
Request mode
Asynchronous Batch job; retrieve results or use completion notificationsSource for Request mode (opens in a new tab)
Required request fields
model=enhanced; language=<language or pack>; operating_point is a legacy equivalentSource for Required request fields (opens in a new tab)
Regional processing
Calls and subsequent job retrieval use this region’s endpoint.Source for Regional processing (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
Speech recognitionOptional translation add-on1$0.65audio hour
Speech recognitionOptional chapters add-on1$0.40audio hour
Speech recognitionOptional topics add-on1$0.20audio hour
Speech recognitionOptional summaries add-on1$0.12audio hour
Speech recognitionOptional sentiment add-on1$0.12audio hour
Speech recognitionBatch transcription2$0.75audio hour

Rate conditions

  1. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate. Optional add-on charge, additional to transcription only when enabled; do not sum unselected features.
  2. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate.
Pricing source (opens in a new tab)

Data & enterprise terms

Provider documentation says Realtime processing is in memory without storing audio or transcripts; Batch jobs retain audio, transcripts and configuration for seven days, with earlier deletion available. Current terms require opt-in before using customer data for training. Discounts based on training-data use require explicit opt-in; TTS preview documentation describes a different retention policy.

Read the service policy (opens in a new tab)
API model ID
enhanced
Access
Enterprise failover endpoint; jobs are not visible in the portal. Contract access required.
Regions
Europe enterprise failover EU2
API endpoint URL
https://eu2.asr.api.speechmatics.com/v2/jobs/Source for API endpoint URL (opens in a new tab)
Maximum audio file
Less than 1 GB for direct upload; larger files can be fetched by URLSource for Maximum audio file (opens in a new tab)
Request quotas
Guidance: 10 submissions/s and 50 status reads/s; backstop 20,000 concurrent jobsSource for Request quotas (opens in a new tab)
Request mode
Asynchronous Batch job; retrieve results or use completion notificationsSource for Request mode (opens in a new tab)
Required request fields
model=enhanced; language=<language or pack>; operating_point is a legacy equivalentSource for Required request fields (opens in a new tab)
Regional processing
Calls and subsequent job retrieval use this region’s endpoint.Source for Regional processing (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
Speech recognitionOptional translation add-on1$0.65audio hour
Speech recognitionOptional chapters add-on1$0.40audio hour
Speech recognitionOptional topics add-on1$0.20audio hour
Speech recognitionOptional summaries add-on1$0.12audio hour
Speech recognitionOptional sentiment add-on1$0.12audio hour
Speech recognitionBatch transcription2$0.75audio hour

Rate conditions

  1. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate. Optional add-on charge, additional to transcription only when enabled; do not sum unselected features.
  2. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate.
Pricing source (opens in a new tab)

Data & enterprise terms

Provider documentation says Realtime processing is in memory without storing audio or transcripts; Batch jobs retain audio, transcripts and configuration for seven days, with earlier deletion available. Current terms require opt-in before using customer data for training. Discounts based on training-data use require explicit opt-in; TTS preview documentation describes a different retention policy.

Read the service policy (opens in a new tab)
API model ID
enhanced
Access
Enterprise failover endpoint; jobs are not visible in the portal. Contract access required.
Regions
United States enterprise failover US2
API endpoint URL
https://us2.asr.api.speechmatics.com/v2/jobs/Source for API endpoint URL (opens in a new tab)
Maximum audio file
Less than 1 GB for direct upload; larger files can be fetched by URLSource for Maximum audio file (opens in a new tab)
Request quotas
Guidance: 10 submissions/s and 50 status reads/s; backstop 20,000 concurrent jobsSource for Request quotas (opens in a new tab)
Request mode
Asynchronous Batch job; retrieve results or use completion notificationsSource for Request mode (opens in a new tab)
Required request fields
model=enhanced; language=<language or pack>; operating_point is a legacy equivalentSource for Required request fields (opens in a new tab)
Regional processing
Calls and subsequent job retrieval use this region’s endpoint.Source for Regional processing (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
Speech recognitionOptional translation add-on1$0.65audio hour
Speech recognitionOptional chapters add-on1$0.40audio hour
Speech recognitionOptional topics add-on1$0.20audio hour
Speech recognitionOptional summaries add-on1$0.12audio hour
Speech recognitionOptional sentiment add-on1$0.12audio hour
Speech recognitionBatch transcription2$0.75audio hour

Rate conditions

  1. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate. Optional add-on charge, additional to transcription only when enabled; do not sum unselected features.
  2. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate.
Pricing source (opens in a new tab)

Data & enterprise terms

Provider documentation says Realtime processing is in memory without storing audio or transcripts; Batch jobs retain audio, transcripts and configuration for seven days, with earlier deletion available. Current terms require opt-in before using customer data for training. Discounts based on training-data use require explicit opt-in; TTS preview documentation describes a different retention policy.

Read the service policy (opens in a new tab)
API model ID
enhanced
Access
API key and permitted account usage required; language entitlement may depend on contract.
Regions
Nearest available region
API endpoint URL
wss://global.rt.speechmatics.com/v2Source for API endpoint URL (opens in a new tab)
Session duration
48 hours maximum; also closes after one hour without audio or three minutes without audio/pingsSource for Session duration (opens in a new tab)
Request quotas
Free: two concurrent sessions; Pro: 50; Enterprise: agreed limitsSource for Request quotas (opens in a new tab)
Required request fields
model=enhanced; language=<language or pack>; operating_point is a legacy equivalentSource for Required request fields (opens in a new tab)
Regional processing
Routes to the nearest region; pin a regional endpoint for residency requirements.Source for Regional processing (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
Speech recognitionOptional translation add-on1$0.65audio hour
Speech recognitionRealtime transcription2$0.80audio hour

Rate conditions

  1. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate. Optional add-on charge, additional to transcription only when enabled; do not sum unselected features.
  2. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate.
Pricing source (opens in a new tab)

Data & enterprise terms

Provider documentation says Realtime processing is in memory without storing audio or transcripts; Batch jobs retain audio, transcripts and configuration for seven days, with earlier deletion available. Current terms require opt-in before using customer data for training. Discounts based on training-data use require explicit opt-in; TTS preview documentation describes a different retention policy.

Read the service policy (opens in a new tab)
API model ID
enhanced
Access
API key and permitted account usage required; language entitlement may depend on contract.
Regions
Europe
API endpoint URL
wss://eu.rt.speechmatics.com/v2Source for API endpoint URL (opens in a new tab)
Session duration
48 hours maximum; also closes after one hour without audio or three minutes without audio/pingsSource for Session duration (opens in a new tab)
Request quotas
Free: two concurrent sessions; Pro: 50; Enterprise: agreed limitsSource for Request quotas (opens in a new tab)
Required request fields
model=enhanced; language=<language or pack>; operating_point is a legacy equivalentSource for Required request fields (opens in a new tab)
Regional processing
Calls and subsequent job retrieval use this region’s endpoint.Source for Regional processing (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
Speech recognitionOptional translation add-on1$0.65audio hour
Speech recognitionRealtime transcription2$0.80audio hour

Rate conditions

  1. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate. Optional add-on charge, additional to transcription only when enabled; do not sum unselected features.
  2. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate.
Pricing source (opens in a new tab)

Data & enterprise terms

Provider documentation says Realtime processing is in memory without storing audio or transcripts; Batch jobs retain audio, transcripts and configuration for seven days, with earlier deletion available. Current terms require opt-in before using customer data for training. Discounts based on training-data use require explicit opt-in; TTS preview documentation describes a different retention policy.

Read the service policy (opens in a new tab)
API model ID
enhanced
Access
API key and permitted account usage required; language entitlement may depend on contract.
Regions
United States
API endpoint URL
wss://us.rt.speechmatics.com/v2Source for API endpoint URL (opens in a new tab)
Session duration
48 hours maximum; also closes after one hour without audio or three minutes without audio/pingsSource for Session duration (opens in a new tab)
Request quotas
Free: two concurrent sessions; Pro: 50; Enterprise: agreed limitsSource for Request quotas (opens in a new tab)
Required request fields
model=enhanced; language=<language or pack>; operating_point is a legacy equivalentSource for Required request fields (opens in a new tab)
Regional processing
Calls and subsequent job retrieval use this region’s endpoint.Source for Regional processing (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
Speech recognitionOptional translation add-on1$0.65audio hour
Speech recognitionRealtime transcription2$0.80audio hour

Rate conditions

  1. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate. Optional add-on charge, additional to transcription only when enabled; do not sum unselected features.
  2. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate.
Pricing source (opens in a new tab)

Data & enterprise terms

Provider documentation says Realtime processing is in memory without storing audio or transcripts; Batch jobs retain audio, transcripts and configuration for seven days, with earlier deletion available. Current terms require opt-in before using customer data for training. Discounts based on training-data use require explicit opt-in; TTS preview documentation describes a different retention policy.

Read the service policy (opens in a new tab)
API model ID
enhanced
Access
API key and permitted account usage required; language entitlement may depend on contract.
Regions
Australia
API endpoint URL
wss://au.rt.speechmatics.com/v2Source for API endpoint URL (opens in a new tab)
Session duration
48 hours maximum; also closes after one hour without audio or three minutes without audio/pingsSource for Session duration (opens in a new tab)
Request quotas
Free: two concurrent sessions; Pro: 50; Enterprise: agreed limitsSource for Request quotas (opens in a new tab)
Required request fields
model=enhanced; language=<language or pack>; operating_point is a legacy equivalentSource for Required request fields (opens in a new tab)
Regional processing
Calls and subsequent job retrieval use this region’s endpoint.Source for Regional processing (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
Speech recognitionOptional translation add-on1$0.65audio hour
Speech recognitionRealtime transcription2$0.80audio hour

Rate conditions

  1. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate. Optional add-on charge, additional to transcription only when enabled; do not sum unselected features.
  2. Published rate with training-data and volume discount toggles disabled. Billed to the second; one credit equals one USD before purchase discounts. Optional training-data discount requires opt-in and changes retention permissions. Volume/credit discounts and enterprise contracts are separate. No generic text-token question estimate.
Pricing source (opens in a new tab)

Data & enterprise terms

Provider documentation says Realtime processing is in memory without storing audio or transcripts; Batch jobs retain audio, transcripts and configuration for seven days, with earlier deletion available. Current terms require opt-in before using customer data for training. Discounts based on training-data use require explicit opt-in; TTS preview documentation describes a different retention policy.

Read the service policy (opens in a new tab)

Speechmatics licensed deployment

Provider source (opens in a new tab)
API model ID
enhanced
Access
Customer license and private repository access required. Container version is a software release, not a separately counted model.
Regions
Customer-controlled
Deployment options
Licensed GPU inference and language-specific transcription containersSource for Deployment options (opens in a new tab)

Endpoint pricing has not been collected. Check the provider for applicable rates.

Data & enterprise terms

Licensed deployment in customer-controlled infrastructure. Cloud retention rules do not describe a locally integrated model. Exact licensing and telemetry terms depend on the deployment agreement.

Read the service policy (opens in a new tab)
API model ID
speechmatics/enhanced
Access
Retired on October 5, 2026. Migrate the LiveKit Inference selector to speechmatics/linden-1; native Speechmatics API access is separate.
Regions
Former global and EU hosted access
Request mode
LiveKit Agents inference.STT(model=...) managed streaming transportSource for Request mode (opens in a new tab)

Endpoint pricing has not been collected. Check the provider for applicable rates.

Data & enterprise terms

LiveKit states inference requests and outputs are not retained or used for training by it or the underlying provider. Optional agent observability and stored voice samples are separate. Global routing is unrestricted unless project-region restrictions are enabled; EU-hosted new projects enable them by default.

Read the service policy (opens in a new tab)

Caching

Caching can reuse earlier input processing. Availability, lifetime and billing depend on the endpoint. A cache hit still generates a new response.

01 / INITIAL INPUTProcess & retain

The system processes eligible input and retains reusable state.

02 / LATER REQUESTCheck available state

Reuse depends on matching input, session state and the cache policy.

03 / CACHE HITReuse & generate

Reusing state can reduce repeated work. Any charges follow the billing rules below.

Speechmatics API

enhanced
Not verified

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How it works
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Minimum reusable input
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Lifetime & refresh
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How to enable it
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Usage fields
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Billing rules
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Limits & data boundaries
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Speechmatics API

enhanced
Not verified

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How it works
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Minimum reusable input
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Lifetime & refresh
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How to enable it
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Usage fields
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Billing rules
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Limits & data boundaries
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Speechmatics API

enhanced
Not verified

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How it works
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Minimum reusable input
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Lifetime & refresh
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How to enable it
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Usage fields
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Billing rules
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Limits & data boundaries
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Speechmatics API

enhanced
Not verified

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How it works
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Minimum reusable input
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Lifetime & refresh
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How to enable it
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Usage fields
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Billing rules
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Limits & data boundaries
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Speechmatics API

enhanced
Not verified

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How it works
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Minimum reusable input
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Lifetime & refresh
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How to enable it
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Usage fields
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Billing rules
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Limits & data boundaries
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Speechmatics API

enhanced
Not verified

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How it works
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Minimum reusable input
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Lifetime & refresh
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How to enable it
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Usage fields
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Billing rules
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Limits & data boundaries
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Speechmatics API

enhanced
Not verified

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How it works
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Minimum reusable input
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Lifetime & refresh
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How to enable it
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Usage fields
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Billing rules
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Limits & data boundaries
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Speechmatics API

enhanced
Not verified

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How it works
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Minimum reusable input
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Lifetime & refresh
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How to enable it
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Usage fields
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Billing rules
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Limits & data boundaries
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Speechmatics API

enhanced
Not verified

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How it works
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Minimum reusable input
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Lifetime & refresh
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How to enable it
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Usage fields
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Billing rules
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Limits & data boundaries
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Speechmatics licensed deployment

enhanced
Not verified

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How it works
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Minimum reusable input
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Lifetime & refresh
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How to enable it
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Usage fields
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Billing rules
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Limits & data boundaries
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

LiveKit Inference

speechmatics/enhanced
Not verified

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How it works
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Minimum reusable input
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Lifetime & refresh
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

How to enable it
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Usage fields
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Billing rules
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

Limits & data boundaries
Not collected

No provider prompt-cache contract collected. Custom vocabulary, cached generated audio files and local Docker image caching do not establish model prompt caching.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

What the measurements say

No benchmark observations have been added for this model. We do not turn a vendor description into a performance score.

Latency and throughput depend on the host, request size, reasoning settings and load. There is no measured speed or global usage figure in this record.

The record behind the model

Why it is included

Speechmatics identifies these as its own models or software, retains the software intellectual property and prohibits alteration/reverse engineering. Licensed containers and a native library do not grant an open model-weight license; SDK source availability is separate.

Classification evidence (opens in a new tab)

Lifecycle dates

LiveKit Inference access retired; native API remains available5 Oct 2026Source (opens in a new tab)

Sources reviewed