This model is not part of the weekly automatic sync. The figures below were confirmed on 2026-08-13.
405B Frontier Open Model
Llama 3.1 405B Instruct — Meta. Context window 128,000 tokens. API pricing (per 1M tokens): Input $2, Output $6. License: Open-Weight. GPQA Diamond 50.9%.
| Provider | Meta |
|---|---|
| Tier | Frontier |
| Context window | 128,000 tokens |
| Max output | 4,096 tokens |
| License | Open-Weight |
| API pricing (per 1M tokens) · Input | $2 |
| API pricing (per 1M tokens) · Output | $6 |
| GPQA Diamond | 50.9% |
LMArena (CC-BY 4.0, best reasoning setting) · GPQA Diamond: Epoch AI (CC-BY 4.0)
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