Optional duration_ms trims audio or pads with silence. Without it, supplied audio determines duration. Studio limits are separately selected in the app.
POST https://api.hedra.com/v3/models/hedra-character-3 with Authorization: Key. Returns an asynchronous job; poll its result or use signed completion webhooks.
Regions
Serving regions and data residency not established
Context / input limit
Not collected
No exact model-specific contract established in the reviewed sources.
Maximum output
Not collected
No exact model-specific contract established in the reviewed sources.
Context caching
Not collected
No exact model-specific contract established in the reviewed sources.
Reasoning
Not collected
No exact model-specific contract established in the reviewed sources.
Tool calling
Not collected
No exact model-specific contract established in the reviewed sources.
Structured output
Not collected
No exact model-specific contract established in the reviewed sources.
Streaming
Not collected
No exact model-specific contract established in the reviewed sources.
Batch processing
Not collected
No exact model-specific contract established in the reviewed sources.
Fine-tuning
Not collected
No exact model-specific contract established in the reviewed sources.
Parameters
Not collected
No exact model-specific contract established in the reviewed sources.
Architecture
Not collected
No exact model-specific contract established in the reviewed sources.
Knowledge cutoff
Not collected
No exact model-specific contract established in the reviewed sources.
Languages
Not collected
No exact model-specific contract established in the reviewed sources.
Release date
Not collected
Official model guide states March 2025; exact launch day is not established.
Optional duration_ms trims audio or pads with silence. Without it, supplied audio determines duration. Studio limits are separately selected in the app.
Prices retain their published currencies and billing units below.
Published billing units · original currency · observed 14 Oct 2026
Category
Usage
Rate
Unit
Video generation
540p avatar video1
$0.025
second of output video
Video generation
720p avatar video1
$0.05
second of output video
Video generation
1080p avatar video1
$0.0625
second of output video
Rate conditions
Published model API rate for the selected resolution. No text-token conversion, Studio credit conversion, minimum billing increment or undisclosed rounding rule is assumed.
Service terms govern input/output use; retention, model-training opt-out and endpoint-specific data residency require separate verification. Do not infer them from output ownership.
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.
Hedra API
hedra-character-3
Not verified
No model-specific prompt-cache contract or cached media tariff documented. Idempotency prevents duplicate jobs; it is not prompt caching.
How it works
Not collected
No model-specific prompt-cache contract or cached media tariff documented. Idempotency prevents duplicate jobs; it is not prompt caching.
Minimum reusable input
Not collected
No model-specific prompt-cache contract or cached media tariff documented. Idempotency prevents duplicate jobs; it is not prompt caching.
Lifetime & refresh
Not collected
No model-specific prompt-cache contract or cached media tariff documented. Idempotency prevents duplicate jobs; it is not prompt caching.
How to enable it
Not collected
No model-specific prompt-cache contract or cached media tariff documented. Idempotency prevents duplicate jobs; it is not prompt caching.
Usage fields
Not collected
No model-specific prompt-cache contract or cached media tariff documented. Idempotency prevents duplicate jobs; it is not prompt caching.
Billing rules
Not collected
No model-specific prompt-cache contract or cached media tariff documented. Idempotency prevents duplicate jobs; it is not prompt caching.
Limits & data boundaries
Not collected
No model-specific prompt-cache contract or cached media tariff documented. Idempotency prevents duplicate jobs; it is not prompt caching.
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
Hedra explicitly identifies Avatar and Character 3 as its own models, distinct from hosted partner models. Reviewed access is through its proprietary service, with service rights retained under the terms. No public weights for these named releases are supplied by the reviewed sources; planned open-core work on Omnia is not transferred to them.
