Updated daily at 05:00 UTC
- Released
- Apr 2026
- Status
- Legacy
- Context
- —
- Max output
- —
- Input per 1M tokens
- —
- Output per 1M tokens
- —
- Open weights
- No
- License
- proprietary
- Parameters
- —
- Knowledge cutoff
- —
- Reasoning
- No
- Modalities
- text → audio
Category scores
Out of 100, from independent and third-party results only, by method category-2026-09-29.1.
Not enough independent results yet
Only independent and third-party results rank a model; self-reported and unattributed numbers never do.
Benchmark results
Every result we hold for this model, with who ran it and where it was published.
No benchmark results yet
Other Step TTS versions
- Step TTS 2Mar 2026
- Step TTS mini—
- StepAudio 3 TTS—