The Open Weights
LatestModelsLeaderboardsCompanies
Subscribe
The Open Weights

The daily record of open-source AI. New model releases, leaderboards, and what's coming next — written for people who ship.

Refreshed every 12 hours

Discover

  • Latest releases
  • New today
  • Trending models

Browse

  • All models
  • Companies
  • Categories
  • Leaderboards

About

  • About
  • Editorial policy
  • Hardware estimates
  • RSS feed
  • llms.txt
  • Newsletter

© 2026 The Open Weights. An independent publication.

PrivacyTermsSMSAggregated by Claude · curated by humans.
LatestMistral AIMini-4B-Realtime-2602
Mistral AISpeech → Text

Mistral Enters Speech AI with Voxtral Mini Model

The company, known for its powerful text models, has released its first open-source speech recognition system designed for real-time, multilingual transcription.

Jan 21, 2026
NotableApache 2.0
Voxtral Mini 4B Realtime

Mistral AI, a company that has rapidly built a reputation for its powerful open-source text models, has released Voxtral Mini 4B Realtime, its first publicly available model for automatic speech recognition (ASR).

This new 4-billion-parameter system is designed specifically for real-time, multilingual speech-to-text applications. Its focus on low-latency performance makes it a candidate for tasks like live captioning, meeting transcription, and voice-activated assistants where immediate feedback is critical.

A New Modality for Mistral

The release signals a significant expansion for the Paris-based AI lab. While previously focused exclusively on text generation with models like Mistral 7B and Mixtral, the company is now entering the competitive audio AI space. This move positions Voxtral as an open-source alternative to established ASR systems, including OpenAI's popular Whisper model.

By releasing Voxtral Mini under a permissive Apache 2.0 license, Mistral continues its strategy of providing foundational tools for developers. The model is now available for download and experimentation on the Hugging Face Hub, allowing the community to build upon and integrate it into new voice-powered applications.

Sources

  • mistralai/Voxtral-Mini-4B-Realtime-2602

    Hugging Face

    Visit
OlderMicrosoft Releases VibeVoice for Speech TranscriptionMicrosoft · Speech → Text · 9 months agoNewerLuxTTS Delivers Lightweight, Open-Source Speech SynthesisYatharthS · Text → Speech · 9 months ago

Get the model

Hugging Face

Specs

Parameters4B
Languages13 languages
Size8.9 GB
PrecisionBF16
ArchitectureVoxtralRealtimeForConditionalGeneration
LicenseAPACHE-2.0
Downloads1.8M
Likes1.1K

Can you run it?

Runs on a laptop — about 5.5 GB at FP8.

  • BF16 (as published)

    12 GB GPU (RTX 3060 / 4070) · 16 GB Mac

    9.9 GB
  • FP8

    8 GB GPU (RTX 4060) · 16 GB laptop or Mac

    5.5 GB
Your machine

Based on Hugging Face weights metadata. Assumes an 8K context and ~1 GB runtime overhead; actual needs vary. How we estimate


Modalities

Speech → Text

The Weekly Weights

Every open release that mattered, one email a week.

0 comments

No comments yet. Be the first to weigh in.

More from Mistral AI

All Mistral AI releases →
Mistral Large 4 (1T-A52B)
Mistral AI/Text / LLMDatacenter

Mistral Large 4 Arrives as a 1T-Parameter MoE

The new flagship pairs a trillion total parameters with 52B active per token and adds vision alongside multilingual text.

Oct 29, 2026
Timestral-209M
Mistral AI/Text / LLMRuns anywhere

Mistral's Timestral brings forecasting to open weights

The French lab releases a compact 209M-parameter foundation model aimed squarely at time-series prediction.

Oct 14, 2026
Mistral AI/Text / LLMDatacenter

Mistral Large 4 arrives as a trillion-param MoE

The new flagship is a sparse mixture-of-experts model with roughly 49B active parameters per token.

Oct 6, 2026

More in Speech → Text

All Speech → Text →
IBM/Speech → Text

IBM's Granite Speech 5.0 Adds Speaker Attribution

The Apache-2.0 speech model handles transcription, translation, and figuring out who said what.

Oct 21, 2026
Qwen · Alibaba/Speech → Text

Qwen-Audio-3.1-ASR Adds Speaker-Aware Transcription

Alibaba's new open audio-language model transcribes and diarizes speech across 30 languages under an Apache 2.0 license.

Oct 19, 2026
Nemotron 3.5 Transcribe 30B-A4B
NVIDIA/Speech → TextWorkstation GPU

NVIDIA's Nemotron 3.5 Transcribe Brings Promptable ASR

A sparse 30B mixture-of-experts model handles multilingual transcription, translation, and speaker diarization from a single system.

Oct 7, 2026