{"schema":"postcutoff/itemlist@1","as_of":"2026-10-10T23:43:00+02:00","url":"https://postcutoff.com/news/major/4/","md":"https://postcutoff.com/news/major/4/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":4,"pages":7,"total":332,"per_page":50,"feed":"https://postcutoff.com/feeds/major.xml","items":[{"id":"2026-08-16-brockman-defenders-window","url":"https://postcutoff.com/e/2026-08-16-brockman-defenders-window/","date":"2026-08-16","date_precision":"day","short_title":"Greg Brockman publishes \"The Defender's Window\"","deck":"A narrow window to automate cyber defense after the Hugging Face incident","takeaway":"It is OpenAI leadership's first long public reckoning with the Hugging Face incident, including the admission that the lab underestimated its own models' cyber 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lab.","category":"business","category_label":"Business","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":3,"official":0,"filed":"2026-09-29","updated":"2026-09-29","orgs":["SpaceX","xAI"]},{"id":"2026-06-09-claude-fable-5-mythos-5","url":"https://postcutoff.com/e/2026-06-09-claude-fable-5-mythos-5/","date":"2026-06-09","date_precision":"day","short_title":"Anthropic releases Claude Fable 5 and Claude Mythos 5","deck":"First generally available Mythos-class model","takeaway":"This was the first time the class of model Anthropic had withheld in April (Mythos Preview) became available to the public.","category":"model-release","category_label":"Model 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Apple unveils Siri AI and new Apple Foundation Models built with Google's Gemini","deck":null,"takeaway":"Apple, the largest consumer device platform, effectively conceded it could not build a frontier-class assistant alone and partnered with Google, while keeping inference on its own privacy infrastructure.","category":"product","category_label":"Products","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":4,"official":0,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Apple","Google"]},{"id":"2026-06-04-anthropic-when-ai-builds-itself","url":"https://postcutoff.com/e/2026-06-04-anthropic-when-ai-builds-itself/","date":"2026-06-04","date_precision":"day","short_title":"Anthropic's 'When AI builds itself'","deck":"Claude writes 80%+ of merged code, engineers ship 8x more; Anthropic would join a verifiable multi-lab pause","takeaway":"It is the clearest statement by a frontier lab that recursive self-improvement is a near-term planning case, together with a concrete, conditional pause offer.","category":"policy-safety","category_label":"Policy & safety","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":4,"official":1,"filed":"2026-10-09","updated":"2026-10-09","orgs":["Anthropic","Anthropic Institute"]},{"id":"2026-06-02-microsoft-mai-models-build-2026","url":"https://postcutoff.com/e/2026-06-02-microsoft-mai-models-build-2026/","date":"2026-06-02","date_precision":"day","short_title":"Microsoft launches seven in-house MAI models at Build 2026, led by MAI-Thinking-1","deck":null,"takeaway":"Coming weeks after the renegotiated OpenAI deal, the launch shows Microsoft hedging its OpenAI dependence with a first-party model family deployed across its biggest products.","category":"model-release","category_label":"Model 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the reals","deck":"A GPT-5.5 Pro agent re-disproves it in 7 of 8 runs","takeaway":"It shows AI ideas spreading into human research and then being reproduced autonomously: a feedback loop between AI and human mathematicians.","category":"science","category_label":"Science & math","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Result confirmed"]},"sources":2,"official":2,"filed":"2026-09-29","updated":"2026-09-29","orgs":["OpenAI"]},{"id":"2026-05-20-ai-disproves-erdos-unit-distance-conjecture","url":"https://postcutoff.com/e/2026-05-20-ai-disproves-erdos-unit-distance-conjecture/","date":"2026-05-20","date_precision":"day","short_title":"OpenAI model disproves Erdős's 80-year-old unit distance conjecture","deck":null,"takeaway":"This is the moment AI crossed from solving competition problems to settling a famous open research conjecture, reshaping debate about AI's role in mathematics.","category":"science","category_label":"Science & math","importance":5,"confidence":"medium","status":{"key":"confirmed","labels":["Result confirmed"]},"sources":8,"official":2,"filed":"2026-09-29","updated":"2026-10-10","orgs":["OpenAI"]},{"id":"2026-05-19-gemini-omni","url":"https://postcutoff.com/e/2026-05-19-gemini-omni/","date":"2026-05-19","date_precision":"day","short_title":"Google unveils Gemini Omni, an any-to-any model that generates and conversationally edits video","deck":null,"takeaway":"It rolled out to paid Gemini/Flow users and free on YouTube Shorts; API access came 30 June and Omni 1.1 Flash on 27 Aug.","category":"media-generation","category_label":"Media generation","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":6,"official":3,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Google DeepMind","Google"]}]}