StepFun: StepAudio 2.5 TTS
StepAudio 2.5 TTS is a text to speech model from StepFun released on Apr 16, 2026. It reads text and writes audio.
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2 providers serve it, including StepFun (Global).
- Modalities
- In / out price
- n/a
- Context
- n/a
- Max output
- n/a
- Released
- Apr 16, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
StepAudio 2.5 TTS providers
2 providers serve it, including StepFun (Global). Each host sets its own price and limits, so the cheapest one is not always the one with the longest context.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output |
|---|---|---|---|---|---|
| StepFun (China) First party | n/a | n/a | – | n/a | n/a |
| StepFun (Global) | n/a | n/a | – | n/a | n/a |
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StepAudio 2.5 TTS questions
Which providers serve StepAudio 2.5 TTS?
2 providers serve it, including StepFun (Global). Prices differ by host, so the Providers table on this page lists each one with its input and output price.
Is StepAudio 2.5 TTS open source?
No. StepFun serves it through an API only, so you cannot download the weights or host it yourself.
When was StepAudio 2.5 TTS released?
Apr 16, 2026.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.