Mistral Large 4 — "Le Chonk": a 1T open-weights flagship, graded on blind human review
From the AI digest for 2026-10-06
What happened: Mistral shipped Mistral Large 4, aka "Le Chonk" — vendor-claimed 1T parameters, natively multimodal, open weights (Mistral announcement + The Register today). Eval layer: Mistral ran a blind Surge AI human eval, expert software engineers grading five frontier models on coding quality — Le Chonk #1 among open-weights models, #2 overall behind only Opus 5 ("Unit tests ask: does it work? Human code review asks: would you merge it?"). Scale color via Gostev (RT'd by LeCun, 9:58 AM ET): trained on 4,000 GPUs vs Astra's 100,000 — "we'll see what the kitten can pull off, but the disparity is pretty stark."
What's genuinely new: Europe's flag bearer re-entering the frontier weight class at a claimed ~1/25th of the acknowledged training compute, with the eval genre shifting to blind human code review rather than a benchmark board. Caveats: the 1T/compute figures are vendor-claimed; Surge is an engaged party (eval commissioned, disclosed in the tweet); the "Astra 100,000 GPUs" comparison is a rival's number.
Watch: open-weights race table in the efficient-tier thread; independent runs once weights circulate; whether the blind-human-eval genre becomes the standard announcement move.
Links: The Register · Surge/Mistral on X