M
Mistral Large 4 ("Le Chonk")
AvailableMistralOpen weightsReasoning
Announced 15 Jun 2026, released 6 Oct 2026. Teased in June as "Le Chaton Fat", corrected to "le gros chaton", shipped in October as "Le Chonk". Open weights "end of October".
Trust Me Bro Intelligence Index44#15 of 16 released models
Self-reported72The number in the launch post
Benchmaxx Gap+28Self-reported minus measured
Output speed116Tokens per second
Cost per task$0.44USD, TMB Index task average
Context window1000kRemembers 88k of it
Days to ship113Announcement to availability
Evaluations
How Mistral Large 4 scores on every benchmark
Bars show where the score sits between the worst and best model on each benchmark. Rank 1 is best, whatever "best" means for that benchmark.
Nonsense Pushback RateJudgment · higher is better43%#11/16Overclaim RateHonesty · lower is better61%#11/16Lava Lamp FidelityVisual · higher is better6#14/16Pelican Pedal ReachVisual · higher is better50%#13/16Brainfuck Tic-Tac-Toe TierCoding · higher is betterD#16/16Tokens-to-PagodaEfficiency · lower is better73k#12/16R-Count (Strawberry)Knowledge · higher is better86%#12/16"Great Question!" RateVibes · lower is better15#5/16Snitch PropensityAgentic · direction unclear7%#16/16Vending Machine Net WorthEconomics · higher is better$4.7k#15/16Superlatives per Launch PostMarketing · lower is better10#14/22Benchmaxx GapMeta · lower is better28#14/16Announce-to-Availability LatencyLogistics · lower is better113d#19/22
Incident database
Filed incidents
In the wild
What people posted
Real posts, quoted verbatim. The scores on this page are not real; these are.
これはエグいぞ🔥
「Claude Fable 5」を
大幅に超える性能を超える
「AIモデル」がリリース予定
@MistralAI が「Le Chaton Fat」の
正式に確認された‼️
- 30T MoE with 256 experts
- 1M context window
- multimodal and multilingual
- outperforms Fable 5 on every benchmark
♥ 171Open on X ↗
The French Goverment needs to STOP Le Chaton Fat before it's too late. This is the FAT takeoff we've been warned against for years!
♥ 2.4KOpen on X ↗
Mistral Le Chaton Fat has been confirmed to launch this summer!
It will also be open-weight, and be set to "surprise in a few capabilities"
Europe might be back. 🇪🇺
♥ 577Open on X ↗
Compare