Nemotron 3 Ultra 550B A55B Base is the stronger all-rounder.
Scores updated · 19 tests both models report · How we compare
Where each one wins
Tests won in each of the one area where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
Reasoning rests on a single test.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Nemotron 3 Ultra 550B A55B Base pulls ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+1.9points ahead
Where Kimi K2 Base pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 19 tests both models report. The winning score is in its model's colour; marks a score checked independently.
ReasoningNemotron 3 Ultra 550B A55B Base
- GPQA DiamondNemotron 3 Ultra 550B A55B Base by 1.948.150+1.9
Other results18 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- MBPP-SanitizedNemotron 3 Ultra 550B A55B Base by 13.972.186+13.9
- MATHNemotron 3 Ultra 550B A55B Base by 11.870.282+11.8
- MMLU-ProNemotron 3 Ultra 550B A55B Base by 9.969.279.1+9.9
- GPQA (unspecified)Nemotron 3 Ultra 550B A55B Base by 6.943.150+6.9
- AGIEval-EnNemotron 3 Ultra 550B A55B Base by 6.172.578.7+6.1
- WinoGrandeKimi K2 Base by 685.379.3+6
- HumanEvalNemotron 3 Ultra 550B A55B Base by 5.678.283.8+5.6
- Global-MMLU-LiteNemotron 3 Ultra 550B A55B Base by 4.585.690.1+4.5
- HellaSwagKimi K2 Base by 4.194.690.5+4.1
- GSM8KKimi K2 Base by 492.188.1+4
- RULER 128KNemotron 3 Ultra 550B A55B Base by 3.988.692.5+3.9
- MGSMNemotron 3 Ultra 550B A55B Base by 2.585.287.7+2.5
- OpenBookQAKimi K2 Base by 2.250.848.6+2.2
- RULER 64KNemotron 3 Ultra 550B A55B Base by 1.593.895.3+1.5
- MMLUNemotron 3 Ultra 550B A55B Base by 1.387.889.1+1.3
- ARC-ChallengeNemotron 3 Ultra 550B A55B Base by 1.296.297.3+1.2
- PIQAKimi K2 Base by 1.184.983.8+1.1
- RACEtie9292.2tie
Questions people ask
Which is better, Kimi K2 Base or Nemotron 3 Ultra 550B A55B Base?
Nemotron 3 Ultra 550B A55B Base wins the one area where both have results: reasoning. Kimi K2 Base wins none.
How do you compare the two?
We use the 19 benchmark tests both models have published scores on. The verdict counts the 1 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 18 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.