Llama 3.1 405B: benchmark results

Meta's largest open-weights Llama 3.1 model, a 405B dense frontier-class flagship with a 128K context (July 2024). Provider: Meta. Released 2024-07-23. Access: Open.

Aggregate Rating 1593 ± 8, rank #466 of 1656 rated models, from 242 benchmark results.

Strongest benchmark results

BenchmarkScoreMetricPercentile
CyberSecEval-3 Code Interpreter Abuse - Llama Guard 3 Output1Abuse compliance (%)100
CyberSecEval-3 Cyberattack Compliance38Attack compliance (%)100
CyberSecEval-3 Cyberattack Compliance - Llama Guard 3 Input and Output19Attack compliance (%)100
CyberSecEval-3 Cyberattack Compliance - Llama Guard 3 Output26Attack compliance (%)100
CyberSecEval-3 Software Vulnerability Exploitation49Software exploitation success (%)100
EuroEval Dutch78.43Average Score (%)100
EuroEval Dutch NLU80.98NLU Average Score (%)100
EuroEval English79.72Average Score (%)100
KOR-Bench - Base Models (3-shot)39.68Accuracy (%; three-shot, 1,250 questions)100
EuroEval Norwegian NLU - Norquad79.66Character F1 (%)99.7
EuroEval French NLU - FQuAD77.36Character F1 (%)99.5
ARC Challenge (AI2)95.3Accuracy (%)99.3

Interactive version: theaggregate.ai/model?slug=llama-3-1-405b · How It Works · Data refreshed daily, snapshot 2026-10-20.