{"schema":"postcutoff/event@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/e/2024-02-15-gemini-1-5/","md":"https://postcutoff.com/e/2024-02-15-gemini-1-5/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":"2024-02-15-gemini-1-5","date":"2024-02-15","date_precision":"day","short_title":"Gemini 1.5 Pro brings a 1-million-token context window","deck":null,"takeaway":"Google announced Gemini 1.5 Pro, a mixture-of-experts model with a context window of up to 1 million tokens in production preview (10M tested in research), able to process hours of video or entire codebases in a single prompt.","category":"model-release","category_label":"Model releases","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":[{"n":1,"title":"Our next-generation model: Gemini 1.5 (Google)","url":"https://blog.google/technology/ai/google-gemini-next-generation-model-february-2024/","type":"official","group":"primary","domain":"blog.google"},{"n":2,"title":"Gemini 1.5: Unlocking multimodal understanding across millions of tokens of context (arXiv)","url":"https://arxiv.org/abs/2403.05530","type":"paper","group":"primary","domain":"arxiv.org"}],"official":2,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Google DeepMind"],"title":"Gemini 1.5 Pro brings a 1-million-token context window","summary":"Google announced Gemini 1.5 Pro, a mixture-of-experts model with a context window of up to 1 million tokens in production preview (10M tested in research), able to process hours of video or entire codebases in a single prompt.","key_facts":["Announced 15 February 2024","Standard 128K context; up to 1M tokens for early testers","Research tests up to 10M tokens with near-perfect needle-in-a-haystack recall","Mixture-of-experts architecture","Context expanded to 2M tokens for developers in mid-2024"],"key_numbers":[],"tags":["llm","long-context","mixture-of-experts","gemini"],"science":null,"body_md":"## What happened\n\nGoogle shipped a model that could reason over ~700K words, an hour of video or 11 hours of audio at once.\n\n## Why it matters\n\nMade million-token context a practical reality and shifted how developers used LLMs (whole-document and whole-repo prompting).","disputed":[],"related":[{"id":"2024-12-11-gemini-2","url":"https://postcutoff.com/e/2024-12-11-gemini-2/","date":"2024-12-11","date_precision":"day","short_title":"Google launches Gemini 2.0 for the 'agentic era'","deck":null,"takeaway":"Marked Google's return to competitive parity and the industry's pivot to agents.","category":"model-release","category_label":"Model releases","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":2,"official":1,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Google DeepMind"]},{"id":"2023-12-06-gemini-1","url":"https://postcutoff.com/e/2023-12-06-gemini-1/","date":"2023-12-06","date_precision":"day","short_title":"Google DeepMind launches Gemini 1.0","deck":null,"takeaway":"Google's main answer to GPT-4, beginning a Gemini line that reached the frontier with Gemini 2.5 and 3.","category":"model-release","category_label":"Model releases","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":2,"official":2,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Google DeepMind","Google"]}],"people":[],"posts":[],"videos":[],"models":[],"changes":[{"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":null,"in_training_data":true},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":null,"in_training_data":true},{"model_id":"gemini-4-hydrogen","name":"Gemini 4 Hydrogen","cutoff":"2026-03","days_after":null,"in_training_data":true},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":null,"in_training_data":true}],"short_url":"https://postcutoff.com/s/gemini-1-5-pro-brings"}