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Model infoModelsSnapshot: 15 Oct 2026

Rime / Mist

Mist v2

Legacy multilingual speech model retained in the native API and offered through dedicated partner deployment. Native and host lifecycle dates differ.

deprecatedClosed weightsText-to-speech
Official documentation (opens in a new tab)Reviewed 13 Oct 2026
4 of 17 specification fields collected
Context windowNot collectedAwaiting source review
Maximum outputNot collectedAwaiting source review
Input billingNot collectedRime API
Output billingNot collectedNo inferred price

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
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
English, Spanish, French, GermanSource for Languages (opens in a new tab)
Context caching
Not collected
Voice references
138 unique voices across 141 model/language/speaker pairingsSource for Voice references (opens in a new tab)

A voice name can support more than one listed language. Provider descriptions are subjective casting metadata, not verified personal traits.

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
mistv2
Access
Legacy selector still served according to the migration guide; no longer covered by current model reference pages. Verify old feature and voice compatibility before relying on it.
Regions
US West (us-west-2) and US East (us-east-1) native regions. These routing details are not a blanket contractual residency guarantee.
API endpoint URL
https://users.rime.ai/v1/rime-ttsSource for API endpoint URL (opens in a new tab)
Output formats
Can return a JSON audioContent envelope with Base64 audio; Mist v2 additionally supports server-sent eventsSource for Output formats (opens in a new tab)
Generation controls
Legacy language/normalization behavior differs from Mist v3; noTextNormalization and saveOovs controls are legacy-only.Source for Generation controls (opens in a new tab)

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

Data & enterprise terms

Rime documents character-count-only collection by default and no customer-content model training without opt-in. Optional request retention is disabled by default and can be enabled for support/quality investigation; enabling it does not authorize training. Voice-clone recordings have separate customer-specific training permission. MSA/BAA terms may vary.

Read the service policy (opens in a new tab)
API model ID
mistv2
Access
Cerebrium partner-service beta documents this selector. Provision a private runtime and confirm the engine version, license and current support contract.
Regions
Customer-selected deployment region; confirm supported regions.

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

Data & enterprise terms

Partner runtime uses a Rime API key for authentication. A complete host retention/training contract and current engine support guarantee are not established from this guide.

Read the service policy (opens in a new tab)
API model ID
rime/mistv2
Access
Retired on this host. Native or other dedicated deployments have separate lifecycle.
Regions
Global host endpoint; model rows do not list a dedicated EU endpoint.
Languages
en, es, fr, deSource for Languages (opens in a new tab)

Host-specific table. Mist v3 lists Hindi here while native Rime lists four languages; do not transfer this to native coverage.

Endpoint retirement date
2026-10-01Source for Endpoint retirement date (opens in a new tab)

The date has passed even though the host table still labels the row DEPRECATED.

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

Data & enterprise terms

LiveKit documents no inference-content retention by default, including underlying providers, with optional observability and voice storage handled separately.

Read the service policy (opens in a new tab)
API model ID
rime-labs/rime-mist-v2
Access
Dedicated deployment offered by Together’s model card. Provision GPU capacity; not a current serverless listing. Pricing includes both character usage and GPU time.
Regions
Dedicated deployment region and capacity depend on the provisioned endpoint.
Request mode
Together speech API supports synchronous, HTTP streaming and WebSocket delivery; use the dedicated endpoint configuration and host-specific schema.Source for Request mode (opens in a new tab)
Languages
English, SpanishSource for Languages (opens in a new tab)

This dedicated card lists fewer languages than the native legacy catalog.

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
Speech synthesisSpeech license; GPU billed separately1$10.001M characters

Rate conditions

  1. This $10/1M-character component excludes required GPU hourly charges, whose amount depends on hardware and provisioning. It is not an all-inclusive serverless rate. Native Rime cloud retirement does not automatically retire this dedicated deployment.
Pricing source (opens in a new tab)

Data & enterprise terms

General Together policy stores prompts/responses by default with an organization ZDR setting; training sharing is separately opt-in. The dedicated Arcana launch advertises ZDR, so confirm the actual dedicated endpoint contract and logging configuration rather than applying a blanket assumption.

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.

Rime API

mistv2
Not verified

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

How it works
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Minimum reusable input
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Lifetime & refresh
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

How to enable it
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Usage fields
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Billing rules
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Limits & data boundaries
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

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

Cerebrium

mistv2
Not verified

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

How it works
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Minimum reusable input
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Lifetime & refresh
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

How to enable it
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Usage fields
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Billing rules
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Limits & data boundaries
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

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

LiveKit Inference

rime/mistv2
Not verified

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

How it works
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Minimum reusable input
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Lifetime & refresh
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

How to enable it
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Usage fields
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Billing rules
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Limits & data boundaries
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

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

Together AI

rime-labs/rime-mist-v2
Not verified

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

How it works
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Minimum reusable input
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Lifetime & refresh
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

How to enable it
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Usage fields
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Billing rules
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

Limits & data boundaries
Not collected

No model-specific prompt-cache contract or discounted cached-character rate established. TensorRT engine caches, persistent sockets and speaker profiles are not prompt caching.

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

Voice choices

138 voices

Choose a voice within Mist v2. These are API voice identifiers, not additional model releases. Source links document each voice.

Published voice catalog
Voice / API IDLanguage & accentDelivery
astraastraEnglish (eng)
US / Standard
Bright, lively California, quick and expressive.Voice source (opens in a new tab)
covecoveEnglish (eng)
US / African American
An empathetic, friendly African-American voice, warm and approachable.Voice source (opens in a new tab)
eucalyptuseucalyptusEnglish (eng)
AUS / Australian
An Australian female voice, both polished and lively.Voice source (opens in a new tab)
isaisaSpanish (spa)
Mexico / Mexican
A friendly, professional Mexican female voice, warm and kind.Voice source (opens in a new tab)
lagoonlagoonEnglish (eng)
US / Standard
A confident, cool young American voice, polished and steady.Voice source (opens in a new tab)
marimariEnglish (eng), Spanish (spa)
Dominican Republic / Caribbean
A friendly, professional Caribbean Latina voice, warm and kind.Voice source (opens in a new tab)
marlumarluEnglish (eng)
AUS / Australian
An older Australian voice; low, mature, unhurried.Voice source (opens in a new tab)
mesa_extramesa_extraEnglish (eng)
US / Californian
A polished young Californian voice, confident and steady.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

Rime reserves ownership of its AI voice models and grants a limited service license. Current Coda/Mist deployments explicitly use private, closed-source licensed engine images; Together describes Arcana as proprietary. The separately released Rimecaster speaker-embedding model is CC-BY-4.0 and is excluded.

Classification evidence (opens in a new tab)

Lifecycle dates

Current introduction article dated; original launch day unverified6 Mar 2025Source (opens in a new tab)
Together card lists this release date31 Jan 2025Source (opens in a new tab)

Sources reviewed