AI Changelog
Sign in
Back to feed

v1.9.0 - Stream my audio 🎙️

Feb 3, 2026
Mistral AI/mistral-commonCLIv1.9.0
View original

Mistral-Common can now process streaming requests

import numpy as np

from mistral_common.audio import Audio
from mistral_common.protocol.instruct.chunk import RawAudio
from mistral_common.protocol.transcription.request import (
    StreamingMode,
    TranscriptionRequest,
)
from mistral_common.tokens.tokenizers.mistral import MistralTokenizer

# 1. Load the tokenizer with audio support
tokenizer = MistralTokenizer.from_hf_hub(
    "mistralai/Voxtral-Mini-4B-Realtime-2602"
)

# 2. Create sample audio data (or load from a file)
sampling_rate = 16_000
duration_s = 2.0
audio_array = np.random.uniform(-1, 1, size=int(duration_s * sampling_rate)).astype(np.float32)

audio = Audio(
    audio_array=audio_array,
    sampling_rate=sampling_rate,
    format="wav",
)

# 3. Create the streaming transcription request
request = TranscriptionRequest(
    audio=RawAudio(
        data=audio.to_base64("wav"),
        format="wav",
    ),
    streaming=StreamingMode.ONLINE,  # or StreamingMode.OFFLINE
    language=None,
)

# 4. Encode the request
tokenized = tokenizer.encode_transcription(request)

# 5. Access the results
print(f"Tokens: {tokenized.tokens}")
print(f"Number of tokens: {len(tokenized.tokens)}")
print(f"Number of audio segments: {len(tokenized.audios)}")

See https://huggingface.co/mistralai/Voxtral-Mini-4B-Realtime-2602 for more info.

What's Changed

New Contributors

Full Changelog: https://github.com/mistralai/mistral-common/compare/v1.8.7...v1.9.0

← Back to feed