Claude 3 Opus vs Claude 4.1 Opus Thinking

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

Quick Verdict

Claude 3 Opus wins overall with a score of 51 vs 29 (22 point difference).Claude 3 Opus wins 4 out of 4 categories.

Knowledge

Claude 3 Opus

Claude 3 Opus

59.5

Claude 4.1 Opus Thinking

35.8

61
MMLU
38
61
GPQA
37
59
SuperGPQA
35
57
OpenBookQA
33

Coding

Claude 3 Opus

Claude 3 Opus

53

Claude 4.1 Opus Thinking

30

53
HumanEval
30

Mathematics

Claude 3 Opus

Claude 3 Opus

60

Claude 4.1 Opus Thinking

37

61
AIME 2023
38
63
AIME 2024
40
62
AIME 2025
39
57
HMMT Feb 2023
34
59
HMMT Feb 2024
36
58
HMMT Feb 2025
35
60
BRUMO 2025
37

Reasoning

Claude 3 Opus

Claude 3 Opus

58

Claude 4.1 Opus Thinking

35

59
SimpleQA
36
57
MuSR
34

Frequently Asked Questions

Which is better, Claude 3 Opus or Claude 4.1 Opus Thinking?

Claude 3 Opus scores higher overall with 51 vs 29, a difference of 22 points across all benchmarks.

Which is better for knowledge tasks, Claude 3 Opus or Claude 4.1 Opus Thinking?

Claude 3 Opus leads in knowledge tasks with an average score of 59.5 vs 35.8.

Which is better for coding, Claude 3 Opus or Claude 4.1 Opus Thinking?

Claude 3 Opus leads in coding with an average score of 53 vs 30.

Which is better for math, Claude 3 Opus or Claude 4.1 Opus Thinking?

Claude 3 Opus leads in math with an average score of 60 vs 37.

Which is better for reasoning, Claude 3 Opus or Claude 4.1 Opus Thinking?

Claude 3 Opus leads in reasoning with an average score of 58 vs 35.