Mistral Large 2 vs Llama 3.1 405B

Compare Mistral Large 2 by Mistral AI against Llama 3.1 405B by Meta AI, context windows of 128K vs 128K, tested across 3 shared challenges. Updated March 2026.

Which is better, Mistral Large 2 or Llama 3.1 405B?

Mistral Large 2 and Llama 3.1 405B are both competitive models. Mistral Large 2 costs $8/M input tokens vs $2.7/M for Llama 3.1 405B. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between Mistral Large 2 and Llama 3.1 405B

Mistral Large 2 is made by mistral while Llama 3.1 405B is from meta. Mistral Large 2 has a 128K token context window compared to Llama 3.1 405B's 128K. On pricing, Mistral Large 2 costs $8/M input tokens vs $2.7/M for Llama 3.1 405B.

Our Verdict
Llama 3.1 405B
Llama 3.1 405B
Mistral Large 2
Mistral Large 2Runner-up

No community votes yet. On paper, Llama 3.1 405B has the edge — bigger model tier, major provider backing.

Llama 3.1 405B is 7.7x cheaper per token — worth considering if cost matters.

Too close to call
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