Llama 3.1 405B vs Mistral Large 2

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

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

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

Key Differences Between Llama 3.1 405B and Mistral Large 2

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

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
Writing DNA

Style Comparison

Similarity
45%

Mistral Large 2 uses 1437.6x more bold

Llama 3.1 405B
Mistral Large 2
56%Vocabulary43%
15wSentence Length21w
0.41Hedging0.39
0.0Bold14.4
1.9Lists7.4
0.03Emoji0.80
0.00Headings1.41
0.16Transitions0.01
Based on 5 + 10 text responses
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Llama 3.1 405BMistral Large 2

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