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Model infoModelsSnapshot: 15 Oct 2026

Yandex / Yandex SpeechKit Brand Voice

SpeechKit Brand Voice Lite

Customer-prepared custom voice training from at least 30 minutes of recordings; currently disabled following an incident.

Speech & voice
restrictedClosed-source managed componentText-to-speech
Official documentation (opens in a new tab)Reviewed 14 Oct 2026
11 of 24 specification fields collected
Text input limitAPI v3: 250 normally; 5,000 with unsafe/streaming mode, subject to voice access.See specification notes below
LanguagesNot collectedAwaiting source review
Input billingSee ratesYandex SpeechKit Brand Voice
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 input tokens
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 supportedSource for Fine-tuning (opens in a new tab)

Currently disabled; the product was designed for custom voice training.

Knowledge cutoff
Not collected
Release date
Not collected
Parameters
Not collected
Languages
Not collected
Context caching
Not collected
Input modalities
TextSource for Input modalities (opens in a new tab)

Training uses recordings; full-text synthesis does not accept a phrase template.

Output modalities
AudioSource for Output modalities (opens in a new tab)
Voice cloning
SupportedSource for Voice cloning (opens in a new tab)

Creates a customer-specific voice from training recordings; not a public stock voice.

Audio sample rates
Training audio: 48 kHz; synthesis: 22 kHz.Source for Audio sample rates (opens in a new tab)
Maximum prompt characters
API v3: 250 normally; 5,000 with unsafe/streaming mode, subject to voice access.Source for Maximum prompt characters (opens in a new tab)
Output duration
Normal API v3 requests: 24 seconds; long-form synthesis uses unsafe/streaming mode.Source for Output duration (opens in a new tab)
Endpoint availability
Functionality disabled after the 10 October 2026 incident.Source for Endpoint availability (opens in a new tab)
Voice references
At least 30 minutes of marked-up recordings; mono WAV, 48 kHz, 16-bit PCM, clips no longer than 15 seconds.Source for Voice references (opens in a new tab)
Native model options
tts://<folder_ID>/bvss-v1/latest@<voice_ID>/?<model_ID>Source for Native model options (opens in a new tab)

Template of a customer-specific URI, not an actual available customer model.

Voice controls
Full-text synthesis. The product comparison says pattern-based synthesis is unsupported.Source for Voice controls (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 SpeechKit Brand Voice

Provider source (opens in a new tab)
API model ID
tts://<folder_ID>/bvss-v1/latest@<voice_ID>/?<model_ID>
Access
Disabled. Historical API v3 customer-specific voice URI retained for reference.
Regions
Russia-only offering in the regional comparison; currently disabled.

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 14 Oct 2026
CategoryUsageRateUnit
Historical Brand Voice Lite tariffsSynthesis request1$0.00133279250-character billing unit
Historical Brand Voice Lite tariffsOne-time voice creation2$74.999988voice
Historical Brand Voice Lite tariffsHosting voice 13$833.32773552voice-month
Historical Brand Voice Lite tariffsHosting voice 23$749.99988voice-month
Historical Brand Voice Lite tariffsHosting voice 33$666.66382776voice-month
Historical Brand Voice Lite tariffsHosting voice 43$583.32777552voice-month
Historical Brand Voice Lite tariffsHosting voice 53$499.99992voice-month
Historical Brand Voice Lite tariffsHosting voice 6 and subsequent3$416.66386776voice-month

Rate conditions

  1. Published USD prices for Iron Hive doo Beograd or Direct Cursus Technology L.L.C. contracts, excluding VAT. Not a RUB/KZT currency conversion. API v3 request billing; long unsafe/streaming requests can consume multiple units. Hosting and setup are separate. Functionality currently disabled; no current quote implied.
  2. Published USD prices for Iron Hive doo Beograd or Direct Cursus Technology L.L.C. contracts, excluding VAT. Not a RUB/KZT currency conversion. Separate from monthly hosting and synthesis; functionality disabled.
  3. Published USD prices for Iron Hive doo Beograd or Direct Cursus Technology L.L.C. contracts, excluding VAT. Not a RUB/KZT currency conversion. Ordinal marginal voice tariff, not one flat price for the whole fleet. First seven hosting days free; synthesis requests remain charged. Functionality disabled.
Pricing source (opens in a new tab)

Data & enterprise terms

Model-specific retention and training-use contract 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 SpeechKit Brand Voice

tts://<folder_ID>/bvss-v1/latest@<voice_ID>/?<model_ID>
Not verified

No exact-model prompt cache or cache discount verified. Repeat requests are not assumed free.

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.

Caching reviewed 14 Oct 2026

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

Hosted translation or custom voice deployment offering. The served component is not published as a downloadable checkpoint in the reviewed sources. This is not an enumeration of customer-private weights or a claim of one immutable foundation model.

Classification evidence (opens in a new tab)

Lifecycle dates

Functionality disabled following an incident10 Oct 2026Source (opens in a new tab)

Sources reviewed