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Higgs Realtime powers live voice and avatar agents. It takes streaming audio or text as input, reasons over the conversation, and returns low-latency spoken responses, avatar output, and text events for application state. Use it when you need a model that can stay in an open session, listen continuously, respond naturally through voice or avatar output, and coordinate with tools while the conversation is happening. The API is compatible with OpenAI GPT Realtime, so existing realtime agent integrations can be adapted with minimal changes.
Higgs Realtime will be available soon.

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Features

  • Realtime multimodal I/O — accept live audio or text and stream spoken responses, avatar output, transcripts, and session events.
  • Natural turn taking — respond with low latency, handle interruptions, and preserve conversational state across multi-turn interactions.
  • Tool-ready voice agents — call backend tools during a conversation and continue speaking once results are ready.
  • Easy integration — OpenAI GPT Realtime-compatible API, with support through LiveKit and Pipecat for production audio pipelines.