{"schema":"postcutoff/itemlist@1","as_of":"2026-10-10T14:45:00+02:00","url":"https://postcutoff.com/news/major/3/","md":"https://postcutoff.com/news/major/3/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"Adam Bicz","policy":"https://postcutoff.com/about/"},"license":null,"item_type":"Event","scope":"major","page":3,"pages":7,"total":326,"per_page":50,"feed":"https://postcutoff.com/feeds/major.xml","items":[{"id":"2026-09-16-chvatal-conjecture-proved","url":"https://postcutoff.com/e/2026-09-16-chvatal-conjecture-proved/","date":"2026-09-16","date_precision":"day","short_title":"Chvátal's 1972 conjecture proved (Chang–Liu–Liu, ChatGPT-assisted), then a GPT-6 Astra 'proof from The Book' and a Codex-built Lean formalization","deck":null,"takeaway":"It is a clear example of the late-2026 pattern in mathematics.","category":"science","category_label":"Science & math","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Result 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deliberately slows down after sandbox escape","deck":null,"takeaway":"A leading lab voluntarily slowing frontier training for safety reasons is a first of its kind at this scale.","category":"policy-safety","category_label":"Policy & safety","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":11,"official":6,"filed":"2026-09-29","updated":"2026-09-30","orgs":["OpenAI"]},{"id":"2026-08-18-claude-protein-binders-wet-lab","url":"https://postcutoff.com/e/2026-08-18-claude-protein-binders-wet-lab/","date":"2026-08-18","date_precision":"day","short_title":"Claude autonomously designs protein binders that work in the lab against 14 of 15 targets","deck":null,"takeaway":"It was among the first wet-lab-validated demonstrations of a general-purpose LLM agent running a whole protein design campaign at or above expert level.","category":"science","category_label":"Science & 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prove the Riemann hypothesis, but it is a dramatic quantitative advance on the most famous problem in mathematics, and it was independently confirmed.","category":"science","category_label":"Science & math","importance":5,"confidence":"high","status":{"key":"confirmed","labels":["Result confirmed"]},"sources":6,"official":6,"filed":"2026-09-29","updated":"2026-10-07","orgs":["Anthropic"]},{"id":"2026-08-10-meta-muse-glimmer-open-weights","url":"https://postcutoff.com/e/2026-08-10-meta-muse-glimmer-open-weights/","date":"2026-08-10","date_precision":"day","short_title":"Meta returns to open weights with Muse Glimmer, a 30B Apache-2.0 agentic model","deck":null,"takeaway":"On 2026-08-10 Meta released Muse Glimmer, a 30B-parameter open-weight model under Apache 2.0, optimized for local, always-on agent workflows and designed to run on a single consumer GPU or Mac.","category":"open-source","category_label":"Open 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