- Status
- Live
- Languages
- English on the current alias
- License
- Apache 2.0
Model ID
| Model ID | Designed for |
|---|---|
kokoro | Fast English speech with named built-in voices |
Confirm access with GET /v1/models, then follow the utility-model docs for the canonical v1 REST or native gRPC request contract.
Pricing
kokoro: Free for a limited time. $0.0001 $0.00 per audio second
Overview
Kokoro is a small 82M-parameter Apache 2.0 TTS model. It is a practical choice for responsive English voice output when you do not need voice cloning.
When to pick Kokoro
- Latency budget is tight (chat-style replies and IVR call legs)
- Throughput is high enough that a compact model is operationally useful
- You do not need voice cloning or emotion control
- English is the dominant language in your workload
When to pick something else
- Consent-backed voice cloning → Qwen3-TTS
- Nepali speech with delivery control → Nepali Parler TTS
- A lightweight fixed English voice → Piper
Use the kokoro alias with POST /v1/audio/speech or the
native gRPC speech method. Use model discovery and your organization limits as
the source of truth for access and request limits.