Mistral Large 3 vs Llama 4 (405B)
Head-to-head technical comparison of intelligence, capabilities, and API pricing.
Mistral Large 3
Mistral
AI Mastery Index89.2
LMSYS Arena1250
Technical (MMLU-Pro)89.2%
Cost per 1M Tokens$0.5
Llama 4 (405B)
Meta
AI Mastery Index90.5
LMSYS Arena1285
Technical (MMLU-Pro)90.5%
Cost per 1M Tokens$0
Architect's Verdict
When comparing Mistral Large 3 and Llama 4 (405B), Llama 4 (405B) edges out in overall capabilities according to the AI Mastery Index. However, for cost-sensitive workloads, Llama 4 (405B) offers a more economical API at $0 per 1M tokens. Your choice should depend heavily on whether you prioritize raw reasoning (MMLU) or scalable deployment economics.