Composer 2 vs Nemotron 3 Ultra 500B

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

Nemotron 3 Ultra 500B has the cleaner overall profile here, landing at 65 versus 62. It is a real lead, but still close enough that category-level strengths matter more than the headline number.

Nemotron 3 Ultra 500B's sharpest advantage is in agentic, where it averages 62.8 against 61.7. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 61.7% to 63%.

Composer 2 is also the more expensive model on tokens at $0.50 input / $2.50 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Nemotron 3 Ultra 500B. That is roughly Infinityx on output cost alone. Nemotron 3 Ultra 500B gives you the larger context window at 10M, compared with 200K for Composer 2.

Quick Verdict

Pick Nemotron 3 Ultra 500B if you want the stronger benchmark profile. Composer 2 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Agentic

Nemotron 3 Ultra 500B

Composer 2

61.7

Nemotron 3 Ultra 500B

62.8

61.7%
Terminal-Bench 2.0
63%
Coming soon
BrowseComp
69%
Coming soon
OSWorld-Verified
58%

Coding

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

73.7%
SWE Multilingual
Coming soon
97.2%
React Native Evals
Coming soon
Coming soon
HumanEval
66%
Coming soon
SWE-bench Verified
42%
Coming soon
LiveCodeBench
41%

Multimodal & Grounded

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
MMMU-Pro
61%
Coming soon
OfficeQA Pro
74%

Reasoning

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
MuSR
69%
Coming soon
BBH
85%
Coming soon
LongBench v2
81%
Coming soon
MRCRv2
85%

Knowledge

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
MMLU
74%
Coming soon
GPQA
73%
Coming soon
SuperGPQA
71%
Coming soon
HLE
15%
Coming soon
FrontierScience
67%
Coming soon
SimpleQA
71%

Instruction Following

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
IFEval
84%

Multilingual

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
MGSM
81%
Coming soon
MMLU-ProX
79%

Mathematics

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
AIME 2023
74%
Coming soon
AIME 2024
76%
Coming soon
AIME 2025
75%
Coming soon
HMMT Feb 2023
70%
Coming soon
HMMT Feb 2024
72%
Coming soon
HMMT Feb 2025
71%
Coming soon
BRUMO 2025
73%
Coming soon
MATH-500
84%

Frequently Asked Questions

Which is better, Composer 2 or Nemotron 3 Ultra 500B?

Nemotron 3 Ultra 500B is ahead overall, 65 to 62. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 61.7% and 63%.

Which is better for agentic tasks, Composer 2 or Nemotron 3 Ultra 500B?

Nemotron 3 Ultra 500B has the edge for agentic tasks in this comparison, averaging 62.8 versus 61.7. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

Last updated: March 18, 2026

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