# StepFun > Chinese AI company publishing the StepAudio and Step TTS model families, including open-weights releases. ## Key Information - Provider: StepFun - Models listed: 3 - Appears on: 1 of 3 boards ## Models - StepAudio 2.5 TTS: Score 71.0, $85.0, 1/3 boards - Step TTS 2 (Mar 2026): Score 61.0, $40.0, 1/3 boards - Step Audio EditX (Mar 2026) (open weights): Score 52.0, —, 1/3 boards ## Links - Provider page: https://texttospeech.com/providers/stepfun - All providers: https://texttospeech.com/providers - Leaderboard: https://texttospeech.com/