Noometry

Model comparison

GPT-5 Nano vs Qwen1.5-72B

GPT-5 Nano is the stronger model overall, scoring 33.5 to 30.8 on the Noometry Index.

Last verified . 17 shared benchmarks.

GPT-5 Nano OpenAI

33.5

Rank #241 Confirmed

Qwen1.5-72B Alibaba (Qwen)

30.8

Rank #285 Confirmed

Summary

  • They share 17 benchmarks with published results for both. GPT-5 Nano scores higher in 5 categories and Qwen1.5-72B in 3 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where GPT-5 Nano leads 35.9 to 11.5.
  • The biggest single-benchmark swing is GPQA Diamond: 69.4% for GPT-5 Nano and 28.8% for Qwen1.5-72B.
  • Qwen1.5-72B has downloadable open weights; the other is API-only.

Side by side

GPT-5 NanoQwen1.5-72B
ProviderOpenAIAlibaba (Qwen)
Noometry Index33.530.8
Released2025-08-072024-02-04
WeightsProprietaryOpen
Context window400K—
Max output128K—
Input $ / M tokens$0.05—
Output $ / M tokens$0.40—
Results tracked4922

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Category by category

Coding GPT-5 Nano leads

GPT-5 Nano: 33.6 (#254), Qwen1.5-72B: 31.9 (#277)

BenchmarkGPT-5 NanoQwen1.5-72B
LMArena Coding13511165
SWE-bench Verified (bash only)34.8%—
WeirdML38.1%—
BigCodeBench Instruct—33.2%
BigCodeBench Complete—40.3%
ALE-Bench718.67—
HumanEval+—59.1%
MBPP+—61.6%

Agentic & Tool Use Not comparable

GPT-5 Nano: 25.8 (#106), Qwen1.5-72B: —

BenchmarkGPT-5 NanoQwen1.5-72B
Terminal-Bench21.8%—
Berkeley Function Calling Leaderboard51.5%—

Reasoning Qwen1.5-72B leads

GPT-5 Nano: 16.3 (#306), Qwen1.5-72B: 22.2 (#203)

BenchmarkGPT-5 NanoQwen1.5-72B
LMArena Hard Prompts13281148
ARC-AGI-22.6%—
Kagi LLM Benchmark62.2%—
ARC-AGI-120.7%—
Chess Puzzles27%—
Mystery Game Puzzles9%—
DTBench62.7%—
LMCA7.9%—
Epoch Capabilities Index139.38—
ForecastBench59.1—

Math Qwen1.5-72B leads

GPT-5 Nano: 29.4 (#241), Qwen1.5-72B: 33.2 (#205)

BenchmarkGPT-5 NanoQwen1.5-72B
LMArena Math13171164
FrontierMath (Tiers 1-3)20%—
FrontierMath Tier 42.4%—
OTIS Mock AIME 2024-202581.1%—
ProofBench12%—
Omni-MATH54.6%—
MATH Level 595.2%—
FrontierMath (Feb 2025 set)8.3%—
FrontierMath Tier 4 (v1)2.1%—

Knowledge GPT-5 Nano leads

GPT-5 Nano: 35.9 (#178), Qwen1.5-72B: 11.5 (#300)

BenchmarkGPT-5 NanoQwen1.5-72B
GPQA Diamond69.4%28.8%
LMArena Expert13211136
SimpleQA Verified11.7%—
MMLU-Pro77.8%—
Vectara Hallucination Rate10.5%—
GPQA (HELM)67.9%—

Multimodal Not comparable

GPT-5 Nano: 31.3 (#108), Qwen1.5-72B: —

BenchmarkGPT-5 NanoQwen1.5-72B
LMArena Vision1159—
VPCT37.2%—

Multilingual GPT-5 Nano leads

GPT-5 Nano: 45.3 (#172), Qwen1.5-72B: 33.2 (#253)

BenchmarkGPT-5 NanoQwen1.5-72B
LMArena Non-English13131135
LMArena Chinese13561186
LMArena German13271084
LMArena Japanese12261061
LMArena Korean12691050
LMArena Russian12961104
LMArena Spanish13601110
LMArena French—1159

Instruction Following GPT-5 Nano leads

GPT-5 Nano: 75.0 (#79), Qwen1.5-72B: 59.3 (#256)

BenchmarkGPT-5 NanoQwen1.5-72B
LMArena Instruction Following13061141
IFEval93.2%—

Long Context Qwen1.5-72B leads

GPT-5 Nano: 31.3 (#281), Qwen1.5-72B: 35.1 (#243)

BenchmarkGPT-5 NanoQwen1.5-72B
LMArena Longer Query13121157
Fiction.LiveBench44.4%—

Writing & Preference GPT-5 Nano leads

GPT-5 Nano: 39.1 (#249), Qwen1.5-72B: 37.3 (#258)

BenchmarkGPT-5 NanoQwen1.5-72B
LMArena Text13201166
LMArena Creative Writing12491137
LMArena Multi-Turn13111160
EQ-Bench Creative Writing705—
WildBench80.6%—

Frequently asked questions

Is GPT-5 Nano better than Qwen1.5-72B?

GPT-5 Nano is the stronger model overall, scoring 33.5 to 30.8 on the Noometry Index.

Is GPT-5 Nano or Qwen1.5-72B better for coding?

GPT-5 Nano scores higher on coding benchmarks: 33.6 versus 31.9 in the Noometry coding category.

How many benchmarks do GPT-5 Nano and Qwen1.5-72B share?

17 benchmarks have published results for both models. GPT-5 Nano has 49 scored results on Noometry and Qwen1.5-72B has 22.

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