benchlm.ai

Claude 4.1 Opus Thinking vs Llama 3.1 405B

Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.

Quick Verdict

Llama 3.1 405B wins overall with a score of 58 vs 29 (29 point difference).Llama 3.1 405B wins 4 out of 4 categories.

Claude 4.1 Opus Thinking

CreatorAnthropic
TypeProprietary
Context200K
Score29

Llama 3.1 405B

CreatorMeta
TypeOpen Weight
Context128K
Score58

Knowledge

Llama 3.1 405B

Claude 4.1 Opus Thinking

35.8

Llama 3.1 405B

68.5

38
MMLU
70
37
GPQA
70
35
SuperGPQA
68
33
OpenBookQA
66

Coding

Llama 3.1 405B

Claude 4.1 Opus Thinking

30

Llama 3.1 405B

62

30
HumanEval
62

Mathematics

Llama 3.1 405B

Claude 4.1 Opus Thinking

37

Llama 3.1 405B

69

38
AIME 2023
70
40
AIME 2024
72
39
AIME 2025
71
34
HMMT Feb 2023
66
36
HMMT Feb 2024
68
35
HMMT Feb 2025
67
37
BRUMO 2025
69

Reasoning

Llama 3.1 405B

Claude 4.1 Opus Thinking

35

Llama 3.1 405B

67

36
SimpleQA
68
34
MuSR
66

Frequently Asked Questions

Which is better, Claude 4.1 Opus Thinking or Llama 3.1 405B?

Llama 3.1 405B scores higher overall with 58 vs 29, a difference of 29 points across all benchmarks.

Which is better for knowledge tasks, Claude 4.1 Opus Thinking or Llama 3.1 405B?

Llama 3.1 405B leads in knowledge tasks with an average score of 68.5 vs 35.8.

Which is better for coding, Claude 4.1 Opus Thinking or Llama 3.1 405B?

Llama 3.1 405B leads in coding with an average score of 62 vs 30.

Which is better for math, Claude 4.1 Opus Thinking or Llama 3.1 405B?

Llama 3.1 405B leads in math with an average score of 69 vs 37.

Which is better for reasoning, Claude 4.1 Opus Thinking or Llama 3.1 405B?

Llama 3.1 405B leads in reasoning with an average score of 67 vs 35.

Related Comparisons

Claude 4.1 Opus Thinking vs GPT-5.4Claude 4.1 Opus Thinking vs Gemini 3.1 ProClaude 4.1 Opus Thinking vs Claude Opus 4.6Claude 4.1 Opus Thinking vs GPT-5.3 CodexClaude 4.1 Opus Thinking vs Grok 4.1Claude 4.1 Opus Thinking vs GPT-5.2