Mistral Voxtral STT Plugin

Mistral Voxtral realtime speech-to-text integration for Vision Agents.

Features

Real-time speech recognition via WebSocket streaming
Low-latency transcription using Voxtral models
Automatic language detection
Partial transcript streaming for responsive UX
Sentence-level final transcripts (triggered by ., ?, !)

Installation

uv add "vision-agents[mistral]"
# or directly
uv add vision-agents-plugins-mistral

Usage

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


async def create_agent(**kwargs) -> Agent:
    return Agent(
        edge=getstream.Edge(),
        agent_user=User(name="Assistant", id="agent"),
        instructions="You're a helpful voice AI assistant. Keep replies short and conversational.",
        stt=mistral.STT(),
        tts=deepgram.TTS(),
        llm=gemini.LLM(),
    )


async def join_call(agent: Agent, call_type: str, call_id: str, **kwargs) -> None:
    call = await agent.create_call(call_type, call_id)

    async with agent.join(call):
        await agent.run()


if __name__ == "__main__":
    Runner(AgentLauncher(create_agent=create_agent, join_call=join_call)).cli()

Run with:

uv run plugins/mistral/example/mistral_stt_example.py run

Turn Detection

Mistral Voxtral STT does not include built-in turn detection (turn_detection=False). You'll need to pair it with an external turn detection plugin.

Configuration

Parameter	Description	Default
`api_key`	Mistral API key	`MISTRAL_API_KEY` env var
`model`	Model identifier	`voxtral-mini-transcribe-realtime-2602`
`sample_rate`	Audio sample rate (Hz): 8000, 16000, 22050, 44100, 48000	`16000`
`client`	Pre-configured Mistral client	`None`

Events

The plugin emits standard STT events:

STTTranscriptEvent: Final transcript (emitted at sentence boundaries or stream end)
STTPartialTranscriptEvent: Partial word/delta as transcription streams

Dependencies

mistralai[realtime]>=1.12.0
vision-agents

Metadata

Release files for vision-agents-plugins-mistral 0.6.9

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for vision-agents-plugins-mistral 0.6.9
File	Size	Uploaded
vision_agents_plugins_mistral-0.6.9.tar.gz	4.9 kB	Aug 13, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for vision-agents-plugins-mistral 0.6.9
File	Interpreter	ABI	Platform	Reset
vision_agents_plugins_mistral-0.6.9-py3-none-any.whl 5.0 kB Aug 13, 2026	Python 3	none	any	Details

Total release size: 9.8 kB

Release files / vision_agents_plugins_mistral-0.6.9.tar.gz

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Uploaded via	`uv/0.10.10 {"installer":{"name":"uv","version":"0.10.10","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"macOS","version":null,"id":null,"libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":null}`

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Upload date	Aug 13, 2026
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Uploaded via	`uv/0.10.10 {"installer":{"name":"uv","version":"0.10.10","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"macOS","version":null,"id":null,"libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":null}`