Model comparison

GPT-5.2 vs Nemotron 3 Ultra

GPT-5.2 is the stronger model overall, scoring 54.1 to 44.7 on the Noometry Index. Nemotron 3 Ultra costs 4.6× less per token, which makes it the better buy when GPT-5.2's lead doesn't matter for your workload.

Last verified . 26 shared benchmarks.

GPT-5.2 OpenAI

54.1

Rank #31 Confirmed

Nemotron 3 Ultra NVIDIA

44.7

Rank #71 Confirmed

Summary

  • They share 26 benchmarks with published results for both. GPT-5.2 scores higher in 6 categories and Nemotron 3 Ultra in 2 categories; 4 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.2 leads 59.8 to 34.4.
  • The biggest single-benchmark swing is Chess Puzzles: 49% for GPT-5.2 and 12% for Nemotron 3 Ultra.
  • Nemotron 3 Ultra is cheaper at $0.60 / $2.40 per million input/output tokens, against $1.75 / $14 for GPT-5.2.
  • GPT-5.2 accepts more context: 400K tokens versus 262K.
  • Nemotron 3 Ultra has downloadable open weights; the other is API-only.

Side by side

GPT-5.2 and Nemotron 3 Ultra specifications
GPT-5.2Nemotron 3 Ultra
ProviderOpenAINVIDIA
Noometry Index54.144.7
Released2025-12-112026-06-04
WeightsProprietaryOpen
Context window400K262K
Max output128K128K
Input $ / M tokens$1.75$0.60
Output $ / M tokens$14$2.40
Results tracked6729

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Category by category

Coding GPT-5.2 leads

GPT-5.2: 52.2 (#32), Nemotron 3 Ultra: 37.7 (#174)

Coding benchmarks
BenchmarkGPT-5.2Nemotron 3 Ultra
WeirdML72.2%43.5%
LMArena Coding14471468
SWE-bench Verified73.8%—
FrontierCode—13.6%
SWE-bench Verified (bash only)72.8%—
LMArena WebDev1415—
SWE-bench Multilingual66.7%—
SciCode—40.3%
GSO27.4%—
ALE-Bench1,294—
AlgoTune2.05—

Agentic & Tool Use Not comparable

GPT-5.2: 40.0 (#24), Nemotron 3 Ultra: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5.2Nemotron 3 Ultra
Terminal-Bench64.9%—
Berkeley Function Calling Leaderboard55.9%—
GDPval49.7%—
Remote Labor Index2.5%—
τ²-bench Airline83%—
τ²-bench Banking32.2%—
τ²-bench Retail81.6%—
τ²-bench Telecom89.7%—
DeepResearch Bench41.1%—
LMArena Search1207—
METR Time Horizons75.3%—
Vending-Bench 23,591—

Reasoning GPT-5.2 leads

GPT-5.2: 50.1 (#33), Nemotron 3 Ultra: 30.3 (#78)

Reasoning benchmarks
BenchmarkGPT-5.2Nemotron 3 Ultra
Chess Puzzles49%12%
LMArena Hard Prompts14451452
Mystery Game Puzzles23%20%
DTBench90.9%90.1%
LMCA43.9%36.9%
Epoch Capabilities Index153.45146.2
ARC-AGI-252.9%—
SimpleBench45.8%—
Kagi LLM Benchmark73.3%—
NYT Connections (extended)83.6%—
ARC-AGI-186.2%—
CritPt—3.1%
EnigmaEval10.4%—
EBR-Bench23%—
ForecastBench60.1—

Math GPT-5.2 leads

GPT-5.2: 59.8 (#32), Nemotron 3 Ultra: 34.4 (#160)

Knowledge GPT-5.2 leads

GPT-5.2: 59.2 (#29), Nemotron 3 Ultra: 52.5 (#56)

Knowledge benchmarks
BenchmarkGPT-5.2Nemotron 3 Ultra
GPQA Diamond91.4%85.4%
LMArena Expert14451472
Humanity's Last Exam27.8%—
SimpleQA Verified37.1%—
Vectara Hallucination Rate8.4%—

Multimodal Not comparable

GPT-5.2: 50.9 (#7), Nemotron 3 Ultra: —

Multimodal benchmarks
BenchmarkGPT-5.2Nemotron 3 Ultra
LMArena Vision1268—
VPCT84%—
Furniture Assembly38.3%—
LMArena Document1405—

Multilingual Too close to call

GPT-5.2: 53.6 (#63), Nemotron 3 Ultra: 53.7 (#61)

Multilingual benchmarks
BenchmarkGPT-5.2Nemotron 3 Ultra
LMArena Non-English14251427
LMArena Chinese14601498
LMArena French14561475
LMArena German14481471
LMArena Korean13901387
LMArena Russian14401415
LMArena Spanish14331452
LMArena Japanese1421—

Instruction Following Too close to call

GPT-5.2: 74.9 (#83), Nemotron 3 Ultra: 74.9 (#84)

Instruction Following benchmarks
BenchmarkGPT-5.2Nemotron 3 Ultra
LMArena Instruction Following14171417

Long Context Too close to call

GPT-5.2: 44.0 (#74), Nemotron 3 Ultra: 43.9 (#77)

Long Context benchmarks
BenchmarkGPT-5.2Nemotron 3 Ultra
LMArena Longer Query14281437
CL-bench18.2%—

Writing & Preference Too close to call

GPT-5.2: 67.0 (#30), Nemotron 3 Ultra: 66.3 (#35)

Writing & Preference benchmarks
BenchmarkGPT-5.2Nemotron 3 Ultra
LMArena Text14391444
LMArena Creative Writing14021392
EQ-Bench Creative Writing17031692
LMArena Multi-Turn14581412

Frequently asked questions

Is GPT-5.2 better than Nemotron 3 Ultra?

GPT-5.2 is the stronger model overall, scoring 54.1 to 44.7 on the Noometry Index. Nemotron 3 Ultra costs 4.6× less per token, which makes it the better buy when GPT-5.2's lead doesn't matter for your workload.

Which is cheaper, GPT-5.2 or Nemotron 3 Ultra?

Nemotron 3 Ultra is cheaper. It lists at $0.60 per million input tokens and $2.40 per million output tokens; GPT-5.2 lists at $1.75 and $14.

Is GPT-5.2 or Nemotron 3 Ultra better for coding?

GPT-5.2 scores higher on coding benchmarks: 52.2 versus 37.7 in the Noometry coding category.

Which has the bigger context window?

GPT-5.2 does, with 400K tokens against 262K.

How many benchmarks do GPT-5.2 and Nemotron 3 Ultra share?

26 benchmarks have published results for both models. GPT-5.2 has 67 scored results on Noometry and Nemotron 3 Ultra has 29.

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