Llama 3.1-405B
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Overview
The largest open-source model on Earth. 405B params. Free. Zuck said open source wins and meant it. July 2024.
Details
- Vendor
- Meta AI
- Type
- LLM
- Release year
- 2024
- Jurisdiction
- USA
- CEO
- Mark Zuckerberg
- Key staffers
- Yann LeCun (Chief AI Scientist), Joelle Pineau (VP AI Research), Chris Cox (Chief Product Officer)
- Deployment
- Cloud + Local (open weights)
- Open source
- Yes
- Free tier
- Yes
- Subscription
- Mostly free/open models; Meta AI features in Meta apps
- Stock status
- $599 (META, May 2026)
- X
- @MetaAI
Capabilities
AppVoice Chat
AIDb Rating
AIDb v2.0 (rule-based): Capability 4/10 · Currency 4/10 · Access 10/10 · Significance 5/10 → 5.05
Last verified 2026-06-11 · Primary source ↗
Cite this
“Llama 3.1-405B.” AIDb — The AI Database. Verified 2026-06-11. https://theaidatabase.com/m/llama-3-1-405b-meta-ai.html
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