benchlm.ai

Claude 4.1 Opus vs Nemotron Ultra 253B

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

Quick Verdict

Claude 4.1 Opus wins overall with a score of 61 vs 40 (21 point difference).Claude 4.1 Opus wins 4 out of 4 categories.

Claude 4.1 Opus

CreatorAnthropic
TypeProprietary
Context200K
Score61

Nemotron Ultra 253B

CreatorNVIDIA
TypeOpen Weight
Context32K
Score40

Knowledge

Claude 4.1 Opus

Claude 4.1 Opus

74.5

Nemotron Ultra 253B

46.8

76
MMLU
49
76
GPQA
48
74
SuperGPQA
46
72
OpenBookQA
44

Coding

Claude 4.1 Opus

Claude 4.1 Opus

68

Nemotron Ultra 253B

41

68
HumanEval
41

Mathematics

Claude 4.1 Opus

Claude 4.1 Opus

75

Nemotron Ultra 253B

48

76
AIME 2023
49
78
AIME 2024
51
77
AIME 2025
50
72
HMMT Feb 2023
45
74
HMMT Feb 2024
47
73
HMMT Feb 2025
46
75
BRUMO 2025
48

Reasoning

Claude 4.1 Opus

Claude 4.1 Opus

73

Nemotron Ultra 253B

46

74
SimpleQA
47
72
MuSR
45

Frequently Asked Questions

Which is better, Claude 4.1 Opus or Nemotron Ultra 253B?

Claude 4.1 Opus scores higher overall with 61 vs 40, a difference of 21 points across all benchmarks.

Which is better for knowledge tasks, Claude 4.1 Opus or Nemotron Ultra 253B?

Claude 4.1 Opus leads in knowledge tasks with an average score of 74.5 vs 46.8.

Which is better for coding, Claude 4.1 Opus or Nemotron Ultra 253B?

Claude 4.1 Opus leads in coding with an average score of 68 vs 41.

Which is better for math, Claude 4.1 Opus or Nemotron Ultra 253B?

Claude 4.1 Opus leads in math with an average score of 75 vs 48.

Which is better for reasoning, Claude 4.1 Opus or Nemotron Ultra 253B?

Claude 4.1 Opus leads in reasoning with an average score of 73 vs 46.

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