{"schema":"postcutoff/event@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/e/2026-09-23-gemini-4-post-training/","md":"https://postcutoff.com/e/2026-09-23-gemini-4-post-training/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"2026-09-23-gemini-4-post-training","date":"2026-09-23","date_precision":"day","short_title":"DeepMind says Gemini 4 has entered post-training and will ship \"much earlier\" than end of 2026","deck":null,"takeaway":null,"category":"milestone","category_label":"Milestones","importance":3,"confidence":"medium","status":{"key":"partly","labels":["Partly confirmed"]},"sources":[{"n":1,"title":"Dataconomy: DeepMind says Gemini 4 is coming much earlier than expected","url":"https://dataconomy.com/2026/09/25/deepmind-says-gemini-4-is-coming-much-earlier-than-expected/","type":"press","group":"press","domain":"dataconomy.com"},{"n":2,"title":"GuruFocus: Google's DeepMind nears launch of Gemini 4","url":"https://www.gurufocus.com/news/9094960/googles-deepmind-nears-launch-of-gemini-4-ai-model","type":"press","group":"press","domain":"gurufocus.com"},{"n":3,"title":"Yahoo Finance: Gemini 4 enters post-training","url":"https://finance.yahoo.com/technology/ai/articles/google-gemini-4-enters-post-122454510.html","type":"press","group":"press","domain":"finance.yahoo.com"},{"n":4,"title":"The Information: Google nears release of flagship Gemini 4 AI model","url":"https://www.theinformation.com/articles/google-nears-release-flagship-gemini-4-ai-model","type":"press","group":"press","domain":"theinformation.com"}],"official":0,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Google DeepMind"],"title":"DeepMind says Gemini 4 has entered post-training and will ship \"much earlier\" than end of 2026","summary":"At The Information's AI Agenda Live summit (reported 24–25 Sept 2026), new DeepMind head Koray Kavukcuoglu said Gemini 4 is in early post-training and that Google intends to release an early post-training version \"as soon as possible\", well before year-end, followed by iterative updates. Google had not shipped a new flagship since Gemini 3.1 Pro (Feb 2026).","key_facts":["Kavukcuoglu: 'Our intention is to, like, as soon as possible, to release an early post-training output because we see the results and we are excited.'","Plan: phased rollout starting with an early version, then iterative improvements","Gemini 4 pre-training was first confirmed by Google on 2026-07-21","Gemini 3.5 Pro, announced at I/O for June 2026, still unreleased as of late Sept 2026"],"key_numbers":[],"tags":["gemini-4","frontier-models","roadmap"],"science":null,"body_md":"## What happened\n\nSpeaking publicly for the first time since taking over DeepMind, Kavukcuoglu said Gemini 4 had entered post-training and would be released early and improved iteratively.\n\n## Why it matters\n\nSignals Google's response to GPT-6 and Anthropic's latest models after months of Flash-only releases. Exact event date is inferred (the summit was \"Wednesday\" before Dataconomy's 25 Sept report = 23 Sept); release date for Gemini 4 not yet known.","disputed":[],"related":[{"id":"2026-09-02-gemini-3-8-flash","url":"https://postcutoff.com/e/2026-09-02-gemini-3-8-flash/","date":"2026-09-02","date_precision":"day","short_title":"Google releases Gemini 3.8 Flash and Gemini 3.8 Flash Cyber","deck":null,"takeaway":"Gemini 3.8 Flash caps an unusually fast cadence: 3.5 Flash (19 May), 3.6 Flash (21 Jul), 3.7 Flash (13 Aug), 3.8 Flash (2 Sep).","category":"model-release","category_label":"Model releases","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":10,"official":9,"filed":"2026-09-29","updated":"2026-09-30","orgs":["Google DeepMind","Google"]},{"id":"2026-08-05-hassabis-steps-aside-deepmind","url":"https://postcutoff.com/e/2026-08-05-hassabis-steps-aside-deepmind/","date":"2026-08-05","date_precision":"day","short_title":"Demis Hassabis steps aside as Google DeepMind CEO","deck":"Koray Kavukcuoglu takes over, Jeff Dean leaves","takeaway":"The head of the lab that produced AlphaGo, AlphaFold and Gemini stepped back from running it during the most competitive stretch of the frontier race.","category":"business","category_label":"Business","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":10,"official":4,"filed":"2026-09-29","updated":"2026-10-10","orgs":["Google DeepMind","Google","Alphabet"]},{"id":"2026-07-21-gemini-3-6-flash","url":"https://postcutoff.com/e/2026-07-21-gemini-3-6-flash/","date":"2026-07-21","date_precision":"day","short_title":"Google releases Gemini 3.6 Flash, 3.5 Flash-Lite and 3.5 Flash Cyber","deck":"But no 3.5 Pro","takeaway":"The launch was widely read through what was missing: Gemini 3.5 Pro, promised at I/O for June, had not shipped (Bloomberg reported it struggled to meet internal performance goals).","category":"model-release","category_label":"Model releases","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":5,"official":3,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Google DeepMind","Google"]}],"people":[{"id":"koray-kavukcuoglu","name":"Koray Kavukcuoglu","url":"https://postcutoff.com/person/koray-kavukcuoglu/"}],"posts":[],"videos":[],"models":[],"changes":[{"date":"2026-09-29","type":"edit","text":"Added The Information link"},{"date":"2026-09-29","type":"filed","text":"Created"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-09-29","run":null,"sources_read":null,"updated":"2026-09-29","human_review":null,"version":{"date":"2026-10-04"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":146,"in_training_data":false},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":85,"in_training_data":false},{"model_id":"gemini-4-hydrogen","name":"Gemini 4 Hydrogen","cutoff":"2026-03","days_after":176,"in_training_data":false},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":115,"in_training_data":false}],"short_url":null}