engineering @mistralai, prev @tinybird
Paris
Joined May 2014
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After 3 incredible years at @tinybird, it's time for my next adventure.
I really enjoyed other people's tales of what companies are like from the inside, so here are my reflections on Tinybird: rbarbadillo.github.io/tinybi…
Raquel Barbadillo retweeted
For their Mistral Large 4 release, @MistralAI ran a blind Surge human eval, with our expert software engineers evaluating five frontier models on coding quality.
Le Chonk ranked #1 among open-weight models and #2 overall, behind only Opus 5.
Unit tests ask: does it work?
Human code review asks: would you merge it?
Our evals measures the difference. Working code is the floor; professional taste and judgment are what make it shippable.
Congrats to the Mistral team on le Chonk and their big release 🇫🇷
Meet Mistral Large 4, aka Le Chonk.
• 1T parameters, natively multimodal. 49B active.
It is the best open weights model from US or Europe on aggregated benchmarks.
• State-of-the-art on critical workloads, including cyber defense, manufacturing and finance and it surpasses closed frontier models on visual grounding.
• Forged in Europe end-to-end and is deployable from Europe via our own Mistral Cloud infrastructure.
• Available to all via API today. Working with cybersecurity partners privately.
Open weights release end of October.
De todas las cosas que estamos publicando hoy, este hilo es el más interesante.
Today, we are launching a preview of our new model, Mistral Large 4 (ML4), aka le Chonk 🐈.
ML4 is a 1T-parameter model with 49B active parameters, trained natively with multimodal capabilities.
It is at the frontier of open models, and by far the strongest open-weight model from the US or Europe.
The RL run behind this preview is still in flight and shows no sign of saturation -- we will release a final version before the end of the month along with the weights of the model.
🧵
1/n
Contratamos en ciencia para seguir construyendo más y mejores modelos. Contratamos en ingeniería para construir productos a su alrededor que sean útiles. Y en Mistral Compute, ya sabéis para qué :)
Si estás interesado y nos conocemos, mándame un mensaje antes de aplicar: jobs.ashbyhq.com/mistral.ai
Raquel Barbadillo retweeted
This is a surprising great release. Le Chaton fat is real! Mistral Large 4 puts Europe back in contention on coding and cybersecurity.
Didnt expect Mistral to compete with GLM5.3!
“Le Chonk” is a natively multimodal model with 1T parameters and 49B active. The preview already delivers:
- DeepSWE v1.1: 61.7%, roughly level with GLM-5.3 at 61%. Kimi K3 remains ahead at around 68% in Mistral’s comparison.
- Artificial Analysis Cyber Index: 50, matching GLM-5.3-Flash and beating GLM-5.3’s 36.
- CyberGym-E2E-AA: 82%, ahead of MiMo-V2.6-Pro’s 79%.
Mistral says it trained the model from scratch in its own European datacenters. NVIDIA says only 4,000 Grace Blackwell Superchips powered the training! Which is impressive.
Learning: you can compete with much less compute. Which is crazy. Congrats Mistral!
Today, we are launching a preview of our new model, Mistral Large 4 (ML4), aka le Chonk 🐈.
ML4 is a 1T-parameter model with 49B active parameters, trained natively with multimodal capabilities.
It is at the frontier of open models, and by far the strongest open-weight model from the US or Europe.
The RL run behind this preview is still in flight and shows no sign of saturation -- we will release a final version before the end of the month along with the weights of the model.
🧵
1/n
Raquel Barbadillo retweeted
Genuinely super proud of the science team and everyone who contributed to this release. A lot is in store for products at Mistral and finally having a model this great will make everything come together.
Raquel Barbadillo retweeted
Some things to say about this model:
1. It's a good model in the actual usage sense. I've understood so much about Lacan and Merleau-Ponty in the last two days
2. I spent a non-trivial amount of time to make it good, and then to make it servable
3. We had a tattoo bet about its DeepSWE performance being over 60 (a capability I am responsible for) so I welcome tattoo parlour recommendations to send my colleagues to
4. I marvelled at how good some of my colleagues are at neural surgery under stress
5. An even chonkier boi is munching on trillions of tokens at this very moment
mistral.ai/news/mistral-larg…
Meet Mistral Large 4, aka Le Chonk.
• 1T parameters, natively multimodal. 49B active.
It is the best open weights model from US or Europe on aggregated benchmarks.
• State-of-the-art on critical workloads, including cyber defense, manufacturing and finance and it surpasses closed frontier models on visual grounding.
• Forged in Europe end-to-end and is deployable from Europe via our own Mistral Cloud infrastructure.
• Available to all via API today. Working with cybersecurity partners privately.
Open weights release end of October.
let's gooooooooooooo
Meet Mistral Large 4, aka Le Chonk.
• 1T parameters, natively multimodal. 49B active.
It is the best open weights model from US or Europe on aggregated benchmarks.
• State-of-the-art on critical workloads, including cyber defense, manufacturing and finance and it surpasses closed frontier models on visual grounding.
• Forged in Europe end-to-end and is deployable from Europe via our own Mistral Cloud infrastructure.
• Available to all via API today. Working with cybersecurity partners privately.
Open weights release end of October.
There's a new version of this post
Raquel Barbadillo retweeted
the more compute used at write time, the less required at read time
true in human communications & databases
a lot of people are gonna wake up to a hard truth: years of teaching a personal agent how they think, work and make decisions are trapped inside a black box owned by someone else
leaving means starting from scratch
your agent will become the most valuable piece of software you own, make sure you actually own it
Raquel Barbadillo retweeted
Yo se que es IMPOSIBLE pero ya escribo desde la mas absoluta desesperación, estamos buscando piso con dos habitaciones para alquilar en Barcelona. Imploro que si sabeis algo me digais por favor, gracias!! 🙏🙏
esto es cierto de todo
📹 Juan Sanguino a Nicolás Coronado: “Hay barrios donde no parece realista ser una estrella de cine, pero si tu padre es José Coronado creces diciendo que ser actor es accesible”.
@ZeroDramas_TVE analiza las ventajas de ser #nepobaby. #ZeroDramasLoles
⭕️rtve.es/play/videos/directo/…
