Training use depends on contract and opt-out. EU processing, BAA coverage and opt-out affect training eligibility. Streaming and Sync zero audio/transcript retention require training opt-out; metadata is retained. Async artifacts have separate deletion schedules.
Training use depends on contract and opt-out. EU processing, BAA coverage and opt-out affect training eligibility. Streaming and Sync zero audio/transcript retention require training opt-out; metadata is retained. Async artifacts have separate deletion schedules.
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.
AssemblyAI API
universal-3-5-pro
Not verified
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.
AssemblyAI API · Sync
universal-3-5-pro
Not verified
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
AssemblyAI explicitly describes its Universal speech models as proprietary. These are native provider models, separate from hosted Whisper and third-party LLM Gateway models.