Speech-to-speech
Expanded definition
A speech-to-speech model keeps a conversational audio loop: the user talks, the model talks back, often with barge-in. On GenAIWiki this maps to SKUs such as GPT-Live-1 and Gemini 3.8 Live, which are different APIs and price units than chat completions. Speech-to-text (ASR) only transcribes. TTS only speaks text. Do not treat a Live voice SKU as a batch transcriber or as a text LLM with extra audio. Tools, search, and facts usually live on a backend the voice model delegates to.
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Speech-to-speech FAQ
What is Speech-to-speech?
Speech-to-speech, or full-duplex voice, takes spoken audio and returns spoken audio in one live session instead of chaining STT, an LLM, and TTS.
How is Speech-to-speech used in AI systems?
A speech-to-speech model keeps a conversational audio loop: the user talks, the model talks back, often with barge-in. On GenAIWiki this maps to SKUs such as GPT-Live-1 and Gemini 3.8 Live, which are different APIs and price units than chat completions. Speech-to-text (ASR) only transcribes. TTS only speaks text. Do not treat a Live voice SKU as a batch transcriber or as a text LLM with extra aud...
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