{"schema":"postcutoff/event@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/e/2025-04-05-llama-4/","md":"https://postcutoff.com/e/2025-04-05-llama-4/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":"2025-04-05-llama-4","date":"2025-04-05","date_precision":"day","short_title":"Meta releases Llama 4 Scout and Maverick","deck":null,"takeaway":"Meta released Llama 4 Scout and Maverick, its first natively multimodal mixture-of-experts open-weight models, with Scout offering a 10M-token context window; the launch was marred by controversy over an experimental version used on LMArena.","category":"open-source","category_label":"Open source","importance":3,"confidence":"medium","status":{"key":"partly","labels":["Partly confirmed"]},"sources":[{"n":1,"title":"The Llama 4 herd (Meta AI)","url":"https://ai.meta.com/blog/llama-4-multimodal-intelligence/","type":"official","group":"primary","domain":"ai.meta.com"},{"n":2,"title":"Wikipedia: Llama (language model)","url":"https://en.wikipedia.org/wiki/Llama_(language_model)","type":"discussion","group":"reactions","domain":"en.wikipedia.org"}],"official":1,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Meta"],"title":"Meta releases Llama 4 Scout and Maverick","summary":"Meta released Llama 4 Scout and Maverick, its first natively multimodal mixture-of-experts open-weight models, with Scout offering a 10M-token context window; the launch was marred by controversy over an experimental version used on LMArena.","key_facts":["Released 5 April 2025","Scout: 17B active parameters, 16 experts, 10M-token context","Maverick: 17B active parameters, 128 experts","Llama 4 Behemoth previewed as a teacher model, not released","Meta later reorganized its AI efforts into Meta Superintelligence Labs (mid-2025)"],"key_numbers":[],"tags":["llm","open-weights","mixture-of-experts","meta","multimodal"],"science":null,"body_md":"## What happened\n\nMeta shipped a new MoE generation of Llama with very long context, but reception was lukewarm relative to Chinese open models.\n\n## Why it matters\n\nSignaled Meta's loss of open-weights leadership to Chinese labs (DeepSeek, Qwen, Kimi) and precipitated its superintelligence reorganization.","disputed":[],"related":[{"id":"2025-01-20-deepseek-r1","url":"https://postcutoff.com/e/2025-01-20-deepseek-r1/","date":"2025-01-20","date_precision":"day","short_title":"DeepSeek-R1: open-weights reasoning model rivals o1 and shakes markets","deck":null,"takeaway":"The 'DeepSeek moment' showed that frontier reasoning could be replicated cheaply and openly, triggering a market shock, a wave of open reasoning models, and US policy debates on China.","category":"open-source","category_label":"Open source","importance":5,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":3,"official":2,"filed":"2026-09-29","updated":"2026-09-29","orgs":["DeepSeek"]},{"id":"2024-07-23-llama-3-1-405b","url":"https://postcutoff.com/e/2024-07-23-llama-3-1-405b/","date":"2024-07-23","date_precision":"day","short_title":"Llama 3.1 405B: the first frontier-class open-weights model","deck":null,"takeaway":"Narrowed the open–closed gap to months; open frontier weights reshaped policy debates and enabled wide distillation.","category":"open-source","category_label":"Open source","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":2,"official":2,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Meta"]}],"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":null}