🇫🇷 Le Chonk joins the sudo L7 leaderboard 🇫🇷 We just added @MistralAI's Mistral Large 4 to sudo L7, our benchmark for staff-level software engineering. Mistral Large 4 scores 13.3%, ahead of Muse Spark 1.3 (12.2%) and Grok 4.7 (10.6%). sudo L7 tests whether coding agents can go beyond writing correct code to exercise the judgment of experienced engineers: navigating messy systems, spotting hidden risks, and knowing when technically correct code is still the wrong thing to ship. Allez, le Chonk ! 🥖 Leaderboard ↓

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 🇫🇷

Introducing Tuesday: A Frontier Index for AI at Work Frontier models can solve extraordinary problems. But can they get through an ordinary workday? That’s the premise behind Tuesday. We believe that professional intelligence isn’t a single skill, it’s many capabilities layered together. The Tuesday Index measures all these skills together, with a single easy-to-understand score. Fable 5 — 66.8 GPT-5.6 Sol — 66.7 DeepSeek v4 Pro — 59.7 Qwen 3.8 Max — 58.7 Gemini 3.7 Flash — 58.2 Muse Spark 1.2 — 53.5 A typical Tuesday morning might require reading a chart, following a long policy, tracking constraints across Slack channels, using several tools, and explaining the key business insight to your boss. → You need the basics: can models follow instructions, keep context, use tools, and do what you asked? → You need the exceptional: can they reason creatively and solve genuinely hard problems? → You need broad abilities like long-horizon work, and narrow skills like reading a chart. → You need soft skills too. Professional intelligence isn’t just about correctness. It also demands tact, elegance and precision. The things that inspire us need judgment and taste. Tuesday spans the basics and the exceptional: instruction following, long-context agentic work, professional documents, graphical reasoning, everyday judgment, writing, agents inside realistic companies, and frontier mathematics. It includes our eight benchmarks today: Chartography, HANDBOOK.md, GDP.pdf, ComplexConstraints, CoreCraft, Hemingway-bench, Antidote, and Riemann-bench. We’ll add more as we build them.