Fish Audio launches full-duplex Live 3 voice model API with 186 ms response decisions

Fish Audio introduced Live 3 on 10 November 2026 across the Fish Agent Platform, its developer API, and enterprise deployments, launching an English full-duplex voice model built to listen continuously while speaking. Instead of stitching separate voice-activity thresholds and rule-based interruption timers onto a cascaded speech-to-text and text-to-speech pipeline, Fish Audio trained conversational timing directly into the speech model on recordings of human dialogues while keeping a separate reasoning layer for agent instructions, knowledge bases, and external tool calls.

Learned backchannels, mid-order revisions and barge-in

Live 3 distinguishes brief listener backchannels from genuine interruptions. When a caller says “yeah” or “mm-hmm” while an agent reads back store hours or an order summary, Live 3 continues speaking without cutting off its own turn; when the caller interjects to change days or items, the model stops immediately and yields the floor.

During chunked inputs such as phone numbers or multi-item food orders with mid-sentence self-corrections, Live 3 can decide to emit a short confirmation in as little as 186 milliseconds and wait through pauses until the caller finishes deciding, drawing on Fish Audio’s library of more than 2 million voices and custom clones. Fish Audio has not published standalone per-minute API pricing or multilingual release dates for Live 3.