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Documentation Index

Fetch the complete documentation index at: https://visionagents.ai/llms.txt

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Mistral Voxtral provides real-time speech-to-text via WebSocket streaming with automatic language detection and low-latency transcription.
Vision Agents requires a Stream account for real-time transport. Most providers offer free tiers to get started.

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Installation

uv add "vision-agents[mistral]"

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Quick start

from vision_agents.core import Agent, User
from vision_agents.plugins import mistral, gemini, deepgram, getstream

agent = Agent(
    edge=getstream.Edge(),
    agent_user=User(name="Assistant", id="agent"),
    instructions="You are a helpful assistant.",
    llm=gemini.LLM("gemini-3-flash-preview"),
    stt=mistral.STT(),
    tts=deepgram.TTS(),
)
Set MISTRAL_API_KEY in your environment or pass api_key directly.

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Parameters

NameTypeDefaultDescription
api_keystrNoneAPI key (defaults to MISTRAL_API_KEY env var)
modelstr"voxtral-mini-transcribe-realtime-2602"Model identifier
sample_rateint16000Audio sample rate in Hz (8000, 16000, 22050, 44100, 48000)

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Turn detection

Mistral Voxtral STT does not include built-in turn detection. Pair it with an external turn detection plugin like Smart Turn or Vogent. 
from vision_agents.plugins import mistral, smart_turn

agent = Agent(
    stt=mistral.STT(),
    turn_detection=smart_turn.TurnDetection(),
    # ... other config
)

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Next steps

Build a Voice Agent

Get started with voice

Build a Video Agent

Add video processing