r/MistralAI • • 7d ago

Official / Mod / Mistral Team [ Model ] Voxtral 3 & Voice Agents

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272 Upvotes

Today we introduce Voxtral 3: a new family of state-of-the-art speech-to-text and text-to-speech models, alongside a voice agent SDK that brings listening, thinking, tool calling, and speaking into a single real-time streaming pipeline.

Voxtral 3 is built to create natural conversational experiences, from contact-center agents and service desks to virtual assistants and hands-free copilots. With support for dozens of languages, expressive speech, complex reasoning, and deep integration with your own tools and data, agents built with Voxtral can interpret nuanced intent, reason through sophisticated requests, and execute multi-step actions across connected systems.

Highlights

  • Accurate transcription across 50+ languages: The speech-to-text model, Voxtral Small Transcribe 3, is state-of-the-art in multilingual transcription, identifying who said what (diarization), using keyphrases to improve its accuracy (context-biasing). It detects when someone has finished speaking so agents can respond without delay (end-of-turn detection).
  • Natural speech that adapts to the conversation: The text-to-speech model, Voxtral Mini TTS 3, introduces new voices and controls that adjust their emotion, pace, and emphasis, with support for 35+ languages and 50+ dialects.
  • Human-like intelligence at your (spoken) command: The new voice agent SDK combines listening, reasoning, tool calling, and speaking into a real-time experience. Agents can retrieve information, interact with business systems, and complete tasks during live conversations over phone or web.
  • Pro Voice for distinctly accurate voice adaptation: For professional use cases where basic voice cloning does not suffice, Voxtral's Pro Voice adaptation is able to reproduce a speaker's distinctive character, emotional range, and speaking style across languages, using just 30 minutes of audio.
  • Your voice AI, on your infrastructure: Use Mistral's EU-hosted API or deploy Voxtral 3 on your own infrastructure. Keep sensitive conversations within your environment and control whether any audio is retained.

Learn more about Voxtral 3 in our blog post here or watch our introduction video.


r/MistralAI • • 21d ago

Official / Mod / Mistral Team [ Model ] Le Chonk

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1.4k Upvotes

Today, we're launching a public preview of Mistral Large 4. Unofficially ML4, very officially: le Chonk. ML4 pushes the frontier of open-weight performance. You can try the preview API today on Mistral Studio. Weights drop end of this month.

Frontier performance

A 1 trillion-parameter natively multimodal model with 49 billion active parameters. Our largest and most capable model to date, and it continues to improve rapidly as we refine it.

The model demonstrates exceptional performance across coding, agentic workflows, and multimodal understanding. It already achieves performance competitive with the strongest open-source models globally, while significantly outperforming any open-weight model developed in the US or Europe. On critical enterprise workloads, we find it to be state-of-the-art among open models. In some domains such as visual grounding, it surpasses frontier closed models.

Forged in Europe. Built for AI sovereignty.

ML4 was trained from scratch on 3,800 NVIDIA Grace Blackwell GPUs in Mistral’s own datacenters in Europe. The public preview is served on that same infrastructure. ML4 pairs top-tier cyber performance with open weights and self-deployment, giving organizations both the capability and the autonomy to run advanced security work under their own policies.

The model will be available across multiple regions worldwide, including a European deployment that Mistral operates end-to-end, independently of other digital service providers and under European law. We’ve been working closely with leading enterprises across the world in finance, engineering, manufacturing, logistics, pharmaceuticals, science, shipping, public sector, and other mission-critical industries to train ML4.

There is still more to come. As we work toward releasing the weights, we will share further details on the model architecture, additional benchmarks, and our post-training methodology.


r/MistralAI • • 1h ago

Other Built a mac app that runs entirely on mistral: dictate, ask, read aloud, voice cloning

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• Upvotes

Hey all, I'm a Mistral AI ambassador

Been using mistral’s voice models for a while and wanted others to see how good they are

so i built tabi, a mac app where every feature here is powered by mistral models

what it does:

  1. hold fn and dictate into any app
  2. fn + ctrl to ask it anything: write, rewrite, reply, all by voice
  3. read aloud for text, files and pdfs
  4. voice cloning

models used:

  1. voxtral 3 for transcription
  2. medium 3.5 for cleanup
  3. voxtral tts for read aloud and cloning
  4. ocr 4.1 for docs and pdfs

do check it out and share your feedback: https://www.heytabi.app/


r/MistralAI • • 6h ago

News ArtificialAnalysis released an updated scoring. v5.0 pushes Mistral Large V4 Preview down to 25 points, 8 months behind SOTA, 14th best lab.

25 Upvotes

https://artificialanalysis.ai/

They advertise it as a version of the score that was created to fight against benchmaxxing.

It's also worth a note that the model is 9th most expensive, putting it FAR behind pareto frontier, even more so than in the previous version, where it was roughly in the middle. According to the new benchmark, Mistral 4 Large Preview is worse than GPT-6 Luna Max, at 37 times the cost per task.

For extra reference, here was a post with a screenshot from the previous version of the benchmark: Well, that's...something, I guess


r/MistralAI • • 11h ago

Discussion / Opinion Appreciation + comment on how Mistral's platform seem very strong for knowledge work

52 Upvotes

I recognize many (likely most) people use AI for coding and programming, but as someone that is deeply, deeply in the trenches with knowledge work (e.g., research), I would say Mistral's platform (GLM/Mistral) is somehow even stronger value vs. Claude.

My main driver is Codex (GPT-6.1 Sol), and while OpenAI has claimed that GPT-6.1 Terra should excel in computer use, natural language, etc., my experience is that it legitimately does more harm than good when it comes to:
- Ensuring that language remains / converts to humanized language
- Ensuring that documentation protocol remains followed within spreadsheet, word processing documents, and Notion
- More likely to get an AI agent stop digging itself into a hole, and take a different direction.

For the last point for example, when I ask Codex to collaborate with Claude, often I find that the two dig even DEEPER towards the error that they are making (which defeats the purpose of collaboration, as I was hoping Claude would fish Codex out of the mistake it was making). Somehow, Mistral does a much better job in doing this. Even compared to Sol, I would say this is the case (Astra I think does a good job, but it uses too much usage capacity).

For context, the types of knowledge work I engage would include:
- Concerning a specific research topic/finding (e.g, taxonomy for human-AI collaboration), identify a lineage/tradition of work (i.e., avoid being distracted by superficial keywords / themes, and bring in not so relevant lines of work)
- Dissect scripts / software used to analyze data, and apply knowledge translation to make it easy for normies to understand how the specific workflow work so we can decide on policies
- Annotate documents and spreadsheets to flag diverging design decisions in workflows
- Triage emails/messages.

etc.

For now, I seem to be much more productive when I pair Codex with Mistral, vs. Codex with Claude. Believe it or not. To be fair, when it comes to developing new scripting/configurations to solve specific data analysis problems, I think Claude can really shine.

Just posting this as an appreciation, and leaving this as a mark for other knowledge work oriented users... to give Mistral a shot. (or if any of you think I'm hallucinating, feel free to chip in and share your own experiences)


r/MistralAI • • 21h ago

Help / Question Mistral 4 Family Model

29 Upvotes

Will Mistral launch a family of Models along with version 4? (small, medium, large)


r/MistralAI • • 21h ago

Discussion / Opinion Will we got Deepseek V4.1 Flash 1017?

12 Upvotes

As the title, since 1017 is so great i'm sure most of us wanted to use that model as daily coding driver, hoping mistral devs heard this and deploy this model.


r/MistralAI • • 23h ago

Help / Question Why is Vibe CLI so much faster and more stable than Vibe Code (web) with identical prompts?

11 Upvotes

Hey everyone,

I've been using both Vibe CLI and Vibe Code (the web version) side by side for the past few weeks, and the difference in speed and reliability is honestly night and day, even though the output quality is basically the same when I use identical prompts.

What I'm seeing:

• CLI: fires off tool calls almost instantly, runs multi-step tasks without hiccups, rarely times out. Even long-running builds or multi-file edits just work.

• Web: same prompt, same model, but I'm getting noticeable latency on every step, occasional "connection lost" errors, tool calls that hang for 30+ seconds, and sometimes the whole session just dies mid-task and I have to start over.

It's not about the quality of the code generated — both produce the same result. It's purely about speed and stability. The CLI feels like a tool I can trust to get a job done end-to-end. The web version feels like I'm constantly babysitting it.

My setup:

• CLI: running locally on Windows 11, latest version

• Web: Chrome, same account, same model config

• Same prompts, same files, same tasks

Has anyone else noticed this? Is there a technical reason the CLI would be faster/more stable, local execution vs. server-side, streaming differences, connection overhead? Or is it just my setup?

Would love to hear if others are seeing the same thing, or if there's a config tweak for the web version I'm missing.

Thanks!


r/MistralAI • • 1d ago

Other Opensource WearOS app for mistral AI :D

30 Upvotes

Hi!

I own a Pixel Watch 5, most smartwatches that run Android will give you Gemini as the default and only AI out of the box. I wanted to make my own native app because I don't want to use Gemini + by making my own app I could make something fun and good that goes beyond what's currently there.

Wearstral is open source and its code can be found on GitHub (https://github.com/Hiburger/Wearstral), it works well with my API. Hopefully you'll find it useful too. It's of course easy to use and privacy friendly.

Where it gets complicated is the installation, because I haven't published it on Play store yet, you'll have to be a bit techy and use adb. Mistral Vibe CLI helped a lot the whole time with the code :)

You can find screenshots on the GitHub repo mentioned above, and I obviously take feedbacks/questions ! There's also a roadmap there, when omong other things I plan to add support for other providers aswell.

Thank you ! 🧡


r/MistralAI • • 15h ago

Discussion / Opinion Designing a Personalized Recommendation System — ML System Design Deep Dive (Part 3)

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1 Upvotes

r/MistralAI • • 20h ago

Help / Question Mistral cache drops after a few min of quiet, what are other users doing on it

2 Upvotes

Mistrals docs say cached prompt tokens bill at 10% of input and that prompt_cache_key raises the odds of a hit but they dont give a ttl at all. ppl in here reported it going after a few minutes of quiet, one said about 3 and reads didnt seem to push that out. so one coffee break on a 20k token system prompt plus tools means the next call pays that whole prefix at full price again

that changes whether keep alive pings make sense. on apis where every hit resets the timer for free like anthropic works like that, a tiny ping every few minutes keeps it alive for the price of a cached read. if reads dont extend anything the pings just burn calls. the other route is paying up front for a longer window, anthropic does a 1h ttl at 2x the write price and deepinfra sells a 5 min or 1h retention on a couple of models like kimi k2.7 code, priced as a write premium that you pay again each time you extend it

for a session where the user replies every 10 to 20 min a paid 1h window usually beats rewriting the prefix 3 or 4 times and for quick back and forth chats the default cache is enough and the premium is wasted. someone already asked the mistral team for a retention option in that thread so maybe it lands at some point


r/MistralAI • • 1d ago

Discussion / Opinion Just realized Mistral's pixel art 'M' is the cat logo's head! 😮

156 Upvotes

It took me way too long to see this. Am I the only one that was slow on seeing this? 😄


r/MistralAI • • 10h ago

Discussion / Opinion Z.ai models in Mistral Products

0 Upvotes

Why has Mistral integrated Z.ai into its products? I was shocked to see that the Chinese Z.ai model GLM is default for vibe now.


r/MistralAI • • 1d ago

Discussion / Opinion Using Mistral alongside other AI models in one application

2 Upvotes

When building an application with AI, choosing a model is only part of the decision. You also have to think about how it fits into your existing setup, especially when you want to use models from more than one provider.

For example, using Mistral for one task and another model for a different task can mean dealing with separate API configurations, usage limits, and billing. At the same time, integrating directly with a provider can give you more control over its specific features.

For those using Mistral in their projects, do you prefer integrating directly with Mistral's API, or using a unified API when working with multiple providers? What trade-offs have mattered most in your experience?


r/MistralAI • • 2d ago

Help / Question When Mistral Large 4 in Vibe Code?

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113 Upvotes

Hi guys I'm waiting for Mistral Large 4 Le Chonk in my Mistral web app -> when? is there anybody who knows that date?


r/MistralAI • • 1d ago

Discussion / Opinion Mistral Voice on Vibe

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35 Upvotes

It looks like Mistral is testing voice live conversations on the Vibe app 👏👏👏

It’s looking good. It’s still a bit slow to answer. And the English voice is the same voice they were using for the dictation feature, which speaks really slow and makes it feel unnatural.


r/MistralAI • • 2d ago

News Why Mistral Is Betting on a Different Kind of AI

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95 Upvotes

r/MistralAI • • 2d ago

Other I built a Windows app that forecasts your screen time with Timestral-5M, offline on CPU (next step: mobile)

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30 Upvotes

Hi everyone! When Timestral came out I wanted to try it on something personal, so I built Daycast: a small Windows app that records which apps and websites you use and forecasts your day hour by hour, like a weather forecast for your screen time.

How Timestral is used

  • Timestral-5M runs fully offline on CPU. The 21 MB weights are bundled in the app, so nothing is downloaded and nothing leaves your PC.
  • Once a day a separate low-priority process loads the model and forecasts the rest of the week. It covers total PC usage and every app or site used for at least 10 minutes, plus daily totals, with the p10–p90 range from Timestral's quantiles.
  • A 24-hour forecast takes ~20 ms, and the whole daily run a few seconds. The background logger never loads PyTorch and stays at ~50 MB of RAM.

The part I found most interesting: it has to earn its place

Every day Daycast re-forecasts the last 7 days with both Timestral and a simple baseline (average of the same weekdays), each using only the days before it. It then shows whichever had the lower error on your data.

On my synthetic test data (a very regular week repeated) the baseline actually wins: about 3.6 vs 4.5 minutes of error per hour. That makes sense, since a perfectly repeating week is the best case for a plain average. I'm curious to see what happens on real, messier usage over a few weeks.

Other details

  • Websites are recognised from the address bar domain (only the domain is stored, never full URLs or page titles).
  • Categories are yours to define. The interface is in English and Italian.
  • Open source (MIT); Timestral weights under Mistral's Modified MIT license, with the attribution included.

Honest caveats

  • The zip is ~185 MB, almost all PyTorch.
  • The exe isn't signed, so Windows SmartScreen will warn you.
  • Windows only, for now.

Next: mobile

My real goal is to bring Daycast to phones, with the forecast running on the device so usage data never leaves it. On Windows I'm happy with PyTorch, but on a phone that's not an option, so I'm looking at ExecuTorch, ONNX Runtime Mobile or Core ML.

Questions for people who know Timestral better than me

  1. Has anyone run Timestral on-device on Android or iOS? Did export (ONNX / ExecuTorch / Core ML) work out of the box, or did parts like the attention masks or RoPE need changes?
  2. How well does Timestral-5M hold up when quantized to int8 or fp16? At 21 MB in fp32 it would be tiny on a phone.
  3. Is Mistral planning official ONNX or mobile-friendly exports of the Timestral checkpoints?
  4. On a phone you start with only a few days of history. Any advice on getting good zero-shot forecasts from very short hourly contexts?

GitHub: https://github.com/Fede046/Daycast
Download: https://github.com/Fede046/Daycast/releases/latest

Feedback very welcome!


r/MistralAI • • 2d ago

Other Voice Preview

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42 Upvotes

r/MistralAI • • 1d ago

Help / Question À quand la publication des poids ouverts, toujours le 27/10 ?

3 Upvotes

r/MistralAI • • 2d ago

Other I used Mistral's Timestral-28M to build a local battery forecasting app for Windows

18 Upvotes

Hi everyone!

I've been experimenting with Timestral-28M in a real-world application: predicting laptop battery discharge and charging times.

The result is Battery Forecast, a Windows port of Matteo Bonfanti's Till Dusk.

The app collects battery readings locally, uses historical observations as context for Timestral, and generates a 24-hour forecast.

It estimates when the battery will reach a reserve threshold or a charging target like 80%.

Everything runs offline on the CPU, without retraining the model or uploading data.

The application also includes a Windows tray interface, battery history, configurable alerts and forecast charts.

Current limitations: Accuracy hasn't been systematically validated yet, and charging forecasts remain experimental.

GitHub: https://github.com/Mattboxx/battery-forecast

Website: https://mattboxx.github.io/battery-forecast/

I'd love feedback from anyone experimenting with Timestral, particularly on forecasting from irregular real-world sensor data!


r/MistralAI • • 2d ago

Feedback / Bug Report Another Mistral appreciation post since coming back

155 Upvotes

I live in Europe and want to divest as much from US tech as possible, and although I use ChatGPT Plus and Claude Pro, I tried Mistral about 3 months ago and it was terrible. I wanted to love it but just couldn't.

For context, tech is a hobby and I have been building my homelab with a Synology NAS, Fujitsu Mini PC running Linux and about 80 docker containers, personal website and a couple of VM's, using AI to help build the systems, security, network etc.

Last week I decided to give Mistral another try and OMG!!!! WOW, what a difference!

I gave it read only access to some of my system (using Think mode and GLM 5.3) and it discovered my NAS username and password were exposed in some document on Github which both Claude and ChatGPT hadn't picked up despite security audits.

It's reasoning is now brilliant, speed of response amazing and cost is insanely cheap compared to ChatGPT (with the stupid 5 hour allowance which has made it unusable for me).

I've also now plugged it into my self hosted Open WebUI instance so it has read-only access to a large part of my system, for diagnostics, which makes a huge difference. Previously, I would have to upload a markdown file of my Wiki.js, which is my homelab manual and do that every time I updated the Wiki. But now it has access to the live Wiki, and eventually I would like to give it write access to update the Wiki, but not yet!!

This week I have used Mistral to build various monitoring systems, research agents and audit my system, my website, and bouncing ideas off it and then cross-referencing with ChatGPT.

I've only used €17 of my €255 allowance (included in the Pro plan)!

In comparison, ChatGPT Work has been using my 5 hour allowance after 3-4 prompts recently, when building something, so I have not been able to complete a project during the same session.

In addition to that, and as a bonus, I discovered Mistral Studio, where I recorded a 30 second voice message and then used it in Studio's Text to Speech option and it was frigging amazing!! It read different texts in my voice and was very, very close to sounding just like me!

The future looks bright for Mistral and things are moving in the right direction.

Thank you!! Merci!!


r/MistralAI • • 1d ago

Discussion / Opinion 5.3 flash is listed in vibe cli but it is routing to medium 3.5

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4 Upvotes

r/MistralAI • • 2d ago

Help / Question GLM 5.3 flash vs Mistral 4 small for agentic tasks (openclaw/hermes style custom setup)?

19 Upvotes

Im wondering which one of these is better for agentic tasks, running the base agent with (and calling CLIs with more powerful models when needed for complex planning and coding etc), doing more basic but multi step tasks like gathering info from web, processing it and creating report etc. and also for basic chatting with the agent.

Im sure some of you have tested these head to head, and i wonder if there is clear all around winner between them, or perhaps some specific stuff done better on one and better on other?

(tried using search, but apparently its too complex query for reddit search to find anything meaningful, as i would assume someone has asked this before)


r/MistralAI • • 2d ago

Discussion / Opinion fonctionnalité différenciante : pouvoir utiliser des modèles locaux compatible depuis l'app mobile de Mistral

10 Upvotes

Sur les derniers modèles Pixel, iPhone ou Samsung, on a déjà assez de puissance pour faire tourner des modèles locaux entre 0.8-3B voir du 7B de manière fluide et avec des outils de base. C'est ce que propose notamment Off Grid AI à la fois sur Android et iOS mais il y en a d'autres, y compris open source et gratuit.

Ce serait bien que Mistral, qui a déjà ouvert ses services à des modèles tierces, nous offre la possibilité d'utiliser son application y compris hors-ligne, via le téléchargement de modèles locaux et compatibles.

Je pense que ça ferait venir tout un tas de monde axés sur le local-first, et sensibles aux données personnels tout en profitant de l'interface mobile de Mistral qui est plutot classe.

Des avis là dessus ?