StepFun text-to-speech models & pricing
3 models listed · appears on 1 of 3 boards · from $40.00/1M
Chinese AI company publishing the StepAudio and Step TTS model families, including open-weights releases.
Models on the boards
ModelReleased$/1M charsBoardsComposite
StepAudio 2.5 TTS (Aug 2026) Aug 2026 $85.0 1/3 67.0
Step TTS 2 (Mar 2026) Feb 2026 $40.0 1/3 58.0
Step Audio EditX (Mar 2026)Open weights Feb 2026 — 1/3 50.0