NEST speech transcription with short-file, long-file and live gRPC modes. Includes long-file batch jobs, speaker labels and word alignment where documented.
Explicit multi-file workflow using Object Storage; one batch per Basic domain and at most ten per account. Free domains cannot create batches. No discount is inferred.
This is a union across modes. Live gRPC supports only Korean, English and Japanese. Traditional Chinese and mixed Korean/English are documented for long-file recognition.
The broader prerequisites page also lists M4A, but this API reference does not.
Pronunciation assessment
Optional pronunciation assessment for Korean/English, reference utterance and waveform graph. Korean keyword boosting: up to 512 characters total; keywords need at least three characters.Source for Pronunciation assessment (opens in a new tab)
Endpoint pricing has not been collected. Check the provider for applicable rates.
Data & enterprise terms
Retention, training use, regional processing and enterprise terms have not been summarized for this endpoint.
Endpoint pricing has not been collected. Check the provider for applicable rates.
Data & enterprise terms
Retention, training use, regional processing and enterprise terms have not been summarized for this endpoint.
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.
CLOVA Speech
Not verified
Provider-side caching eligibility and rates have not been established for this service. A downloaded result or retained transcript is not prompt caching.
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.
CLOVA Speech
Not verified
Provider-side caching eligibility and rates have not been established for this service. A downloaded result or retained transcript is not prompt caching.
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.
CLOVA Speech
Not verified
Provider-side caching eligibility and rates have not been established for this service. A downloaded result or retained transcript is not prompt caching.
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.
CLOVA Speech
Not verified
Provider-side caching eligibility and rates have not been established for this service. A downloaded result or retained transcript is not prompt caching.
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.
CLOVA Speech
Not verified
Provider-side caching eligibility and rates have not been established for this service. A downloaded result or retained transcript is not prompt caching.
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.
CLOVA Speech
Not verified
Provider-side caching eligibility and rates have not been established for this service. A downloaded result or retained transcript is not prompt caching.
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
Inferred for this named native commercial model service from NAVER’s own API documentation and the reviewed public HyperCLOVA X inventory. No weights for this exact service were identified. This is a service-level identity, not a claim that its underlying checkpoint is disclosed or that every NAVER audio model is proprietary. Public SEED Omni remains excluded.
