Mistral unveils new voice agent API and speech models with low-cost pricing

Mistral AI announced Voxtral 3 on October 20, 2026, a suite of speech-to-text, text-to-speech, and voice agent models built for real-time conversation. What Voxtral 3 actually does Voxtral 3 has three core pieces: Transcribe for turning speech into text, a text-to-speech (TTS) engine for turning text back into speech, and a new voice agents API with an accompanying SDK. The voice agents API stitches together real-time transcription, reasoning models that process what was said, and streamed spoken replies. Mistral describes the result as a complete pipeline for natural voice conversations. The company is also aiming the toolkit at workflow automation, not just chit-chat. That means voice agents that can kick off tasks, not only answer questions. On language coverage, Mistral’s own summary says the models support over 50 languages. A more detailed breakdown counts more than 35 languages and more than 50 dialects. Pro Voice, pricing, and the benchmark claims One of the more eye-catching additions is a feature called Pro Voice. It allows high-fidelity voice adaptation using up to 30 minutes of reference audio. API access is expected to cost approximately $0.001 per minute. At that rate...