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Llama 3.1-405B benchmark results
6 results on 5 benchmarks from 2 sources.
Open weights Released: Jul 23, 2024 Updated Oct 22, 2026
Also listed as: Llama-3.1-405B-Instruct · Llama 3.1 Instruct Turbo (405B) · Llama-3.1-405B · LLaMA-3.1 405B Base
All benchmark results
| Benchmarks | Score | Rank | Setting | Source type | Date |
|---|---|---|---|---|---|
| GPQA Diamond | 50.9% | 202 | Epoch AI run, accuracy | Independent run | Jan 27, 2025 |
| MMLU | 84.4% | 8 | Exact match; 5-shot | Paper / tech report via Epoch AI | Jul 23, 2024 |
| MMLU | 84.5% | 6 | Exact match; 5-shot | Official leaderboard via Epoch AI | Jul 23, 2024 |
| MMLU-Pro | 73.3% | 90 | Overall accuracy; data source: Self-Reported; 405B“Llama-3.1-405B-Instruct” | Vendor-reported | Mar 11, 2026 |
| AIME (OTIS Mock AIME 2024–2025) | 9.7% | 215 | Epoch AI run, OTIS Mock AIME 2024–2025 | Independent run | Feb 25, 2025 |
| MATH Level 5 | 49.8% | 61 | Epoch AI run, accuracy | Independent run | Jan 27, 2025 |
FAQ
Where do these Llama 3.1-405B scores come from?
From Epoch AI Benchmarking Hub and MMLU-Pro leaderboard (TIGER-Lab). Each row links to the original leaderboard, dataset or report, and vendor-reported numbers are labelled.