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Model infoModelsSnapshot: 15 Oct 2026

ElevenLabs / Speech synthesis

Eleven Flash v2

Speech synthesis from text, with model-specific language and delivery controls.

Speech & voice
availableClosed weightsText-to-speech
Official documentation (opens in a new tab)Reviewed 12 Oct 2026
6 of 19 specification fields collected
Text input limit30,000 characters per requestSee specification notes below
LanguagesenSee specification notes below
Input billingSee ratesElevenLabs 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
Input modalities
TextSource for Input modalities (opens in a new tab)
Output modalities
SpeechSource for Output modalities (opens in a new tab)
Reasoning
Not collected
Tool calling
Not collected
Structured output
Not collected
Streaming
Not collected
Batch processing
Not collected
Fine-tuning
Not collected
Knowledge cutoff
Not collected
Release date
Not collected
Parameters
Not collected
Architecture
Not collected
Languages
enSource for Languages (opens in a new tab)
Maximum prompt characters
30,000 characters per requestSource for Maximum prompt characters (opens in a new tab)
Supported API routes
/v1/text-to-speech/{voice_id}Source for Supported API routes (opens in a new tab)
Provider-reported latency
Approximately 75 msSource for Provider-reported latency (opens in a new tab)

Provider-reported inference latency. Excludes application and network latency; not an independently measured SLA.

Context caching
Not collected

See endpoint caching records. No verified support claim for this model.

Access & pricing

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

ElevenLabs API

Provider source (opens in a new tab)
API model ID
eleven_flash_v2
Access
API key and eligible account required. Route: /v1/text-to-speech/{voice_id}.
Regions
Default service uses US data storage. Enterprise EU, India and Singapore residency environments are separate workspaces; storage location alone does not guarantee in-region processing.

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 12 Oct 2026
CategoryUsageRateUnit
Speech synthesis · standardUsage1$0.041K characters

Rate conditions

  1. API USD pricing, observed October 12, 2026. Excludes taxes. Published API unit rate. Plan allowances and voice-specific modifiers should be checked separately.
Pricing source (opens in a new tab)

Data & enterprise terms

Zero Retention Mode is restricted to eligible Enterprise API requests and must be enabled. Web UI traffic is excluded; review the documented scope and exceptions.

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.

ElevenLabs API

eleven_flash_v2
Not verified

Provider-side caching has not been verified for this endpoint. Missing documentation is not evidence that caching is unsupported.

How it works
Not collected
Minimum reusable input
Not collected
Lifetime & refresh
Not collected
How to enable it
Not collected
Usage fields
Not collected
Billing rules
Not collected
Limits & data boundaries
Not collected

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

ElevenLabs-developed managed model. Reviewed release documentation supplies service access and no downloadable weights; proprietary speech, transcription and turn-taking families are explicitly described by the provider.

Classification evidence (opens in a new tab)

Sources reviewed