Michal Sutter·marktechpost.com·· 3 min read

StepFun drops real-time voice model for roleplaying, paralinguistic comprehension

ai intermediate

TL;DR

StepFun's real-time voice model dominates benchmarks, perfect for conversational AI

StepFun just released StepAudio 2.5 Realtime, an end-to-end voice model that can handle roleplay-specific conversations and comprehend paralinguistic cues. This thing is a game-changer for anyone building conversational AI. Here's what you need to know: the model connects via WebSocket API, supports Chinese and English, and crushed benchmarks in April 2026 with an 80.41 human evaluation score and 82.18 on paralinguistic comprehension.

Key Takeaways

  • •Build roleplay-specific conversations using StepAudio 2.5 Realtime
  • •Tweak persona capabilities to fit your use case
  • •Get started with WebSocket API for seamless integration
aiconversational aivoice models
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Originally published by Michal Sutter on marktechpost.com. Summarized by ContentBuffer.

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