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Model infoModelsSnapshot: 15 Oct 2026

Yandex / Speech Realtime

Speech Realtime Max TTS Live

Speech Realtime Max TTS Live: voice conversation service documented in Yandex AI Studio.

Speech & voice
availableClosed-source managed componentVoice conversation
Official documentation (opens in a new tab)Reviewed 14 Oct 2026
8 of 18 specification fields collected
Context window1.05M1,048,576 tokens
Maximum output393.2K393,216 tokens
Input billingSee ratesYandex AI Studio
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
1,048,576 tokensSource for Context / input limit (opens in a new tab)

Shared context window, not independent input plus output allowances.

Maximum input tokens
Not collected
Maximum output
393,216 tokensSource for Maximum output (opens in a new tab)
Reasoning
Not collected
Tool calling
Not collected
Structured output
Not collected
Streaming
SupportedSource for Streaming (opens in a new tab)

Realtime API voice sessions.

Batch processing
Not collected
Fine-tuning
Not collected
Knowledge cutoff
Not collected
Release date
Not collected
Parameters
Not collected
Languages
Not collected
Context caching
SupportedSource for Context caching (opens in a new tab)

Text context caching; not audio reuse.

Input modalities
Text, AudioSource for Input modalities (opens in a new tab)
Output modalities
AudioSource for Output modalities (opens in a new tab)
Native model options
gpt://<folder_ID>/speech-realtime-max-tts-live/latestSource for Native model options (opens in a new tab)
Billing basis
Text tokens, audio input, audio output and tools are separately billable.Source for Billing basis (opens in a new tab)

Access & pricing

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

Yandex AI Studio

Provider source (opens in a new tab)
API model ID
gpt://<folder_ID>/speech-realtime-max-tts-live/latest
Access
Authenticated provider API; account access and quotas apply.
Regions
Contract and deployment dependent; exact processing location not verified.

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 14 Oct 2026
CategoryUsageRateUnit
Voice pipeline componentsText input1$2.4590161M tokens
Voice pipeline componentsText output1$4.098361M tokens
Voice pipeline componentsCached text input1$0.6147541M tokens
Voice pipeline componentsBuilt-in tool text1$0.6147541M tokens
Voice pipeline componentsIncoming audio2$0.00021639second
Voice pipeline componentsOutgoing audio3$0.00040984second

Rate conditions

  1. Published USD rates for Iron Hive doo Beograd (Serbia) or Direct Cursus Technology L.L.C. (Dubai) contracts; VAT excluded. Not a conversion of RUB or KZT rates. Only the text component; audio and tool invocation charges are additional.
  2. Published USD rates for Iron Hive doo Beograd (Serbia) or Direct Cursus Technology L.L.C. (Dubai) contracts; VAT excluded. Not a conversion of RUB or KZT rates. Add text, output audio and any tool charges.
  3. Published USD rates for Iron Hive doo Beograd (Serbia) or Direct Cursus Technology L.L.C. (Dubai) contracts; VAT excluded. Not a conversion of RUB or KZT rates. LiveTTS has a different outgoing-audio rate from general synthesis.
Pricing source (opens in a new tab)

Data & enterprise terms

Model-specific retention and training-use terms not collected.

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.

Yandex AI Studio

gpt://<folder_ID>/speech-realtime-max-tts-live/latest
Documented
Support evidence (opens in a new tab)
How it works
Automatic when applicableSource for How it works (opens in a new tab)
Minimum reusable input
Not collected
Lifetime & refresh
Not collected
How to enable it
Provider-managed; cache applicability is automatic.Source for How to enable it (opens in a new tab)
Usage fields
Cached input tokens; output tokens are not cached.Source for Usage fields (opens in a new tab)
Billing rules
Use the documented endpoint cached-input rate; some models have no price reduction.Source for Billing rules (opens in a new tab)
Limits & data boundaries
No guaranteed cache hit. Cache lifetime and minimum prefix were not verified.Source for Limits & data boundaries (opens in a new tab)
Cache reads, writes & storage
ChargeApplies toRate / unit
Cached text input1Voice pipeline components$0.614754 / 1M tokensPricing evidence (opens in a new tab)

Rate conditions

  1. Published USD rates for Iron Hive doo Beograd (Serbia) or Direct Cursus Technology L.L.C. (Dubai) contracts; VAT excluded. Not a conversion of RUB or KZT rates. Only the text component; audio and tool invocation charges are additional.

Observed 14 Oct 2026. Write rates and storage fees are different charges; use the billing rules above.

Caching reviewed 14 Oct 2026

Voice choices

6 voices

Choose a voice within Speech Realtime Max TTS Live. These are API voice identifiers, not additional model releases. Source links document each voice.

Published voice catalog
Voice / API IDLanguage & accentDelivery
Sofiasofiaru-RU
Not separately documented		SpeechKit LiveTTS voice. Roles: casual, support. API v3 and compatible LiveTTS Realtime models.Voice source (opens in a new tab)
Veraveraru-RU
Not separately documented		SpeechKit LiveTTS voice. Roles: casual, support. API v3 and compatible LiveTTS Realtime models.Voice source (opens in a new tab)
Vasilyvasilyru-RU
Not separately documented		SpeechKit LiveTTS voice. Roles: support, sales. API v3 and compatible LiveTTS Realtime models.Voice source (opens in a new tab)
Sergeysergeyru-RU
Not separately documented		SpeechKit LiveTTS voice. Roles: support, sales. API v3 and compatible LiveTTS Realtime models.Voice source (opens in a new tab)
Denisdenisru-RU
Not separately documented		SpeechKit LiveTTS voice. Roles: casual, formal, neutral, sales. API v3 and compatible LiveTTS Realtime models.Voice source (opens in a new tab)
Irinairinaru-RU
Not separately documented		SpeechKit LiveTTS voice. Roles: formal, support, narrator, sales, neutral. API v3 and compatible LiveTTS Realtime models.Voice source (opens in a new tab)

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

Provider-hosted classification, custom deployment template or speech pipeline. The complete served component is not downloadable in the reviewed documentation; this does not assert private weights for every backbone or a new foundation checkpoint.

Classification evidence (opens in a new tab)

Lifecycle dates

First documented API availability (may have been preview)24 Sept 2026Source (opens in a new tab)

Sources reviewed