GPT-5.2 vs Nemotron 3 Ultra 550B A55B
Wins 5 of 7 areas
Coding · Agents · Reasoning · Facts · Math
Wins 1 of 7 areas
Following instructions
GPT-5.2 is the stronger all-rounder.Nemotron 3 Ultra 550B A55B is cheaper and better at following instructions.
Scores updated · 37 tests both models report · How we compare
Where each one wins
Tests won in each of the seven areas 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.
- ReasoningHard problems that need careful thinking50GPT-5.25 of 5 tests
- CodingWriting and fixing software52GPT-5.25 of 7 tests
- AgentsCarrying out multi-step tasks on its own31GPT-5.23 of 4 tests
- MathCompetition and research-level math31GPT-5.23 of 4 tests
- FactsGetting facts right instead of making them up21GPT-5.22 of 3 tests
- Following instructionsDoing exactly what it is asked02Nemotron 3 Ultra 550B A55B2 of 2 tests
- Long documentsFinding answers in very long texts11Even1 each
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
Nemotron 3 Ultra 550B A55B costs 79% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where GPT-5.2 pulls ahead
- Real work tasks from 44 professionsGDPVal+22.6points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+21.7points ahead
- Finds hard-to-locate facts by browsing the webBrowseComp+21.4points ahead
Where Nemotron 3 Ultra 550B A55B pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+51.5points ahead
- Long, multi-file coding tasks in real codebasesSWE-bench Pro+19.8points ahead
- Follows detailed instructions exactlyLiveBench · Instruction Following+11.7points ahead
Every test, side by side
All 37 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGPT-5.2
- SWE-bench ProNemotron 3 Ultra 550B A55B by 19.829.949.7+19.8
- SciCodeGPT-5.2 by 11.852.140.3+11.8
- LiveBench · Agentic CodingGPT-5.2 by 11.650.338.7+11.6
- Terminal-Bench HardGPT-5.2 by 10.64736.4+10.6
- SWE-bench VerifiedGPT-5.2 by 9.38070.7+9.3
- LiveBench · CodingGPT-5.2 by 5.476.170.7+5.4
- SWE-bench MultilingualNemotron 3 Ultra 550B A55B by 166.767.7+1
AgentsGPT-5.2
- GDPValGPT-5.2 by 22.648.325.7+22.6
- BrowseCompGPT-5.2 by 21.465.844.4+21.4
- MCP AtlasGPT-5.2 by 15.960.644.7+15.9
- τ-Bench V3 · BankingNemotron 3 Ultra 550B A55B by 3.111.114.2+3.1
ReasoningGPT-5.2
- Humanity's Last ExamGPT-5.2 by 9.337.728.4+9.3
- CritPtGPT-5.2 by 8.511.63.1+8.5
- LiveBench · ReasoningGPT-5.2 by 8.583.274.7+8.5
- SimpleBenchGPT-5.2 by 4.145.841.7+4.1
- GPQA DiamondGPT-5.2 by 3.690.386.7+3.6
FactsGPT-5.2
- AA-Omniscience · Non-hallucinationNemotron 3 Ultra 550B A55B by 51.518.870.3+51.5
- AA-Omniscience · AccuracyGPT-5.2 by 21.744.322.6+21.7
- SimpleQA VerifiedGPT-5.2 by 4.737.132.4+4.7
MathGPT-5.2
- HMMT Feb. 2026GPT-5.2 by 18.29778.8+18.2
- IMOAnswerBenchNemotron 3 Ultra 550B A55B by 686.392.3+6
- LiveBench · MathematicsGPT-5.2 by 4.593.288.7+4.5
- AIME 2026GPT-5.2 by 4.198.394.2+4.1
Long documentsEven
- LongBench v2Nemotron 3 Ultra 550B A55B by 7.454.561.9+7.4
- AA-LCRGPT-5.2 by 3.482.779.3+3.4
Following instructionsNemotron 3 Ultra 550B A55B
- LiveBench · Instruction FollowingNemotron 3 Ultra 550B A55B by 11.761.873.5+11.7
- IFBenchNemotron 3 Ultra 550B A55B by 675.481.4+6
Other results10 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.
- AA Agentic IndexGPT-5.2 by 38.560.221.7+38.5
- livebench_data_analysisGPT-5.2 by 23.778.254.5+23.7
- livebench_languageGPT-5.2 by 979.870.8+9
- HLE (with tools)GPT-5.2 by 8.145.537.4+8.1
- AA IntelligenceGPT-5.2 by 7.530.422.9+7.5
- BrowseComp (context management)GPT-5.2 by 77063+7
- τ²-Bench Telecom (AA run)GPT-5.2 by 1.584.883.3+1.5
- Artificial Analysis Coding Indextie48.749.3tie
- AA-Omnisciencetie-0.9-0.4tie
- MMLU-Protie86.786.8tie
Questions people ask
Which is better, GPT-5.2 or Nemotron 3 Ultra 550B A55B?
GPT-5.2 wins five of the seven areas where both have results: coding, agents, reasoning, facts and math. Nemotron 3 Ultra 550B A55B wins following instructions, and costs 79% less. They are level on long documents.
Which is better for coding?
GPT-5.2. It wins 5 of the 7 coding tests both models report; Nemotron 3 Ultra 550B A55B wins 2.
Which is cheaper?
GPT-5.2 costs $1.75 per million input tokens and $14.00 per million output tokens; Nemotron 3 Ultra 550B A55B costs $0.60 and $2.70. That makes Nemotron 3 Ultra 550B A55B about 79% cheaper for the same work.
How do you compare the two?
We use the 37 benchmark tests both models have published scores on. The verdict counts the 27 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 10 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.