Meta releases Llama 4 Scout and Maverick
Partly confirmed
The 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.
Status
- Claim
Partly confirmed
- Our reporting
- Medium confidence
- Importance
- 3 of 5
- Last verified
- 29 September 2026
Your AI and this story
- GPT-6 AstraIn its training data
- Claude Opus 5.5In its training data
- Gemini 4 HydrogenIn its training data
- Grok 4.7In its training data
It happened before the cutoffs of all four assistants, so it can be in their training data.
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)
What happened
Meta shipped a new MoE generation of Llama with very long context, but reception was lukewarm relative to Chinese open models.
Why it matters
Signaled Meta’s loss of open-weights leadership to Chinese labs (DeepSeek, Qwen, Kimi) and precipitated its superintelligence reorganization.
Sources
2 sources from 2 sites. Numbers match the chips in the text.
2 sources: 1 primary, 1 reaction
Primary
- The Llama 4 herd (Meta AI)ai.meta.com, official
Reactions
- Wikipedia: Llama (language model)en.wikipedia.org, discussion
Changes
- Filed