{"schema":"postcutoff/event@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/e/2024-04-18-llama-3/","md":"https://postcutoff.com/e/2024-04-18-llama-3/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":"2024-04-18-llama-3","date":"2024-04-18","date_precision":"day","short_title":"Meta releases Llama 3 (8B, 70B)","deck":null,"takeaway":"Meta released Llama 3 8B and 70B, trained on over 15 trillion tokens, which set a new bar for open-weight models and powered the Meta AI assistant across Meta's apps.","category":"open-source","category_label":"Open source","importance":3,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":[{"n":1,"title":"Introducing Meta Llama 3 (Meta AI)","url":"https://ai.meta.com/blog/meta-llama-3/","type":"official","group":"primary","domain":"ai.meta.com"},{"n":2,"title":"meta-llama/llama3 (code)","url":"https://github.com/meta-llama/llama3","type":"code","group":"primary","domain":"github.com"}],"official":2,"filed":"2026-09-29","updated":"2026-09-29","orgs":["Meta"],"title":"Meta releases Llama 3 (8B, 70B)","summary":"Meta released Llama 3 8B and 70B, trained on over 15 trillion tokens, which set a new bar for open-weight models and powered the Meta AI assistant across Meta's apps.","key_facts":["Released 18 April 2024","Trained on over 15T tokens (about 7x Llama 2)","New tokenizer with a 128K vocabulary","Followed by Llama 3.1 405B in July 2024"],"key_numbers":[],"tags":["llm","open-weights","meta"],"science":null,"body_md":"## What happened\n\nMeta openly released strong mid-sized models with a heavily scaled training corpus.\n\n## Why it matters\n\nShowed the benefit of training small models far past Chinchilla-optimal, and narrowed the open/closed gap.","disputed":[],"related":[{"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"]},{"id":"2023-07-18-llama-2","url":"https://postcutoff.com/e/2023-07-18-llama-2/","date":"2023-07-18","date_precision":"day","short_title":"Meta releases Llama 2 with a commercial-use license","deck":null,"takeaway":"Legitimized open-weights LLMs in industry and intensified the open vs. closed AI policy debate.","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","Microsoft"]}],"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}