benchlm.ai

Claude 4.1 Opus Thinking vs Nemotron Ultra 253B

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

Quick Verdict

Nemotron Ultra 253B wins overall with a score of 40 vs 29 (11 point difference).Nemotron Ultra 253B wins 4 out of 4 categories.

Claude 4.1 Opus Thinking

CreatorAnthropic
TypeProprietary
Context200K
Score29

Nemotron Ultra 253B

CreatorNVIDIA
TypeOpen Weight
Context32K
Score40

Knowledge

Nemotron Ultra 253B

Claude 4.1 Opus Thinking

35.8

Nemotron Ultra 253B

46.8

38
MMLU
49
37
GPQA
48
35
SuperGPQA
46
33
OpenBookQA
44

Coding

Nemotron Ultra 253B

Claude 4.1 Opus Thinking

30

Nemotron Ultra 253B

41

30
HumanEval
41

Mathematics

Nemotron Ultra 253B

Claude 4.1 Opus Thinking

37

Nemotron Ultra 253B

48

38
AIME 2023
49
40
AIME 2024
51
39
AIME 2025
50
34
HMMT Feb 2023
45
36
HMMT Feb 2024
47
35
HMMT Feb 2025
46
37
BRUMO 2025
48

Reasoning

Nemotron Ultra 253B

Claude 4.1 Opus Thinking

35

Nemotron Ultra 253B

46

36
SimpleQA
47
34
MuSR
45

Frequently Asked Questions

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

Nemotron Ultra 253B scores higher overall with 40 vs 29, a difference of 11 points across all benchmarks.

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

Nemotron Ultra 253B leads in knowledge tasks with an average score of 46.8 vs 35.8.

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

Nemotron Ultra 253B leads in coding with an average score of 41 vs 30.

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

Nemotron Ultra 253B leads in math with an average score of 48 vs 37.

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

Nemotron Ultra 253B leads in reasoning with an average score of 46 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