Model comparison

GPT-5.4 vs Qwen2.5-Coder (1.5B)

GPT-5.4 has enough public results to be ranked (#16); Qwen2.5-Coder (1.5B) does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

GPT-5.4 OpenAI

59.4

Rank #16 Confirmed

Summary

  • They share 1 benchmark with published results for both.
  • Qwen2.5-Coder (1.5B) has downloadable open weights; the other is API-only.

Side by side

GPT-5.4 and Qwen2.5-Coder (1.5B) specifications
GPT-5.4Qwen2.5-Coder (1.5B)
ProviderOpenAIAlibaba (Qwen)
Noometry Index59.4—
Released2026-03-052024-09-18
WeightsProprietaryOpen
Context window1.05M—
Max output128K—
Input $ / M tokens$2.50—
Output $ / M tokens$15—
Results tracked686

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Category by category

Coding Not comparable

GPT-5.4: 52.6 (#33), Qwen2.5-Coder (1.5B): —

Coding benchmarks
BenchmarkGPT-5.4Qwen2.5-Coder (1.5B)
SWE-bench Verified76.9%—
DeepSWE51.8%—
LMArena WebDev1465—
SciCode56.6%—
GSO31.4%—
WeirdML77.7%—
LMArena Coding1497—
MirrorCode15.6%—
ALE-Bench1,607—
AlgoTune1.85—

Agentic & Tool Use Not comparable

GPT-5.4: 46.5 (#13), Qwen2.5-Coder (1.5B): —

Agentic & Tool Use benchmarks
BenchmarkGPT-5.4Qwen2.5-Coder (1.5B)
Terminal-Bench81.8%—
APEX-Agents52.4%—
τ²-bench Banking39.4%—
DeepResearch Bench35.1%—
PostTrainBench19%—
GBAEval45.1%—
LMArena Search1197—
METR Time Horizons74.3%—
Vending-Bench 26,144—

Reasoning Not comparable

GPT-5.4: 61.8 (#19), Qwen2.5-Coder (1.5B): —

Reasoning benchmarks
BenchmarkGPT-5.4Qwen2.5-Coder (1.5B)
Epoch Capabilities Index156.81113.14
ARC-AGI-274%—
Kagi LLM Benchmark63.8%—
NYT Connections (extended)91.3%—
ARC-AGI-193.7%—
CritPt23.4%—
Chess Puzzles44%—
EnigmaEval16%—
Thematic Generalization80%—
EBR-Bench25.4%—
LMArena Hard Prompts1485—
Mystery Game Puzzles37%—
DTBench94.4%—
LMCA52%—
ForecastBench59.5—
HellaSwag—76.8%
WinoGrande—72.9%

Math Not comparable

GPT-5.4: 73.5 (#19), Qwen2.5-Coder (1.5B): —

Knowledge Not comparable

GPT-5.4: 65.3 (#14), Qwen2.5-Coder (1.5B): —

Knowledge benchmarks
BenchmarkGPT-5.4Qwen2.5-Coder (1.5B)
GPQA Diamond93.3%—
Humanity's Last Exam36.2%—
SimpleQA Verified45.1%—
Vectara Hallucination Rate7%—
LMArena Expert1507—
ARC (AI2) Challenge—60.9%
MMLU—68%

Multimodal Not comparable

GPT-5.4: 43.7 (#20), Qwen2.5-Coder (1.5B): —

Multimodal benchmarks
BenchmarkGPT-5.4Qwen2.5-Coder (1.5B)
LMArena Vision1303—
Blueprint-Bench 227.1%—
Furniture Assembly37.5%—
LMArena Document1471—

Multilingual Not comparable

GPT-5.4: 56.2 (#23), Qwen2.5-Coder (1.5B): —

Multilingual benchmarks
BenchmarkGPT-5.4Qwen2.5-Coder (1.5B)
LMArena Non-English1465—
LMArena Chinese1519—
LMArena French1493—
LMArena German1472—
LMArena Japanese1485—
LMArena Korean1448—
LMArena Russian1480—
LMArena Spanish1454—

Instruction Following Not comparable

GPT-5.4: 77.1 (#27), Qwen2.5-Coder (1.5B): —

Instruction Following benchmarks
BenchmarkGPT-5.4Qwen2.5-Coder (1.5B)
LMArena Instruction Following1469—

Long Context Not comparable

GPT-5.4: 50.3 (#8), Qwen2.5-Coder (1.5B): —

Long Context benchmarks
BenchmarkGPT-5.4Qwen2.5-Coder (1.5B)
CL-bench27.9%—
CL-bench Life21.7%—
LMArena Longer Query1473—

Writing & Preference Not comparable

GPT-5.4: 71.9 (#17), Qwen2.5-Coder (1.5B): —

Writing & Preference benchmarks
BenchmarkGPT-5.4Qwen2.5-Coder (1.5B)
LMArena Text1469—
LMArena Creative Writing1439—
EQ-Bench Creative Writing1840—
EQ-Bench 41272—
LMArena Multi-Turn1482—

Frequently asked questions

Is GPT-5.4 better than Qwen2.5-Coder (1.5B)?

GPT-5.4 has enough public results to be ranked (#16); Qwen2.5-Coder (1.5B) does not yet, so treat this comparison as directional.

How many benchmarks do GPT-5.4 and Qwen2.5-Coder (1.5B) share?

1 benchmark has published results for both models. GPT-5.4 has 68 scored results on Noometry and Qwen2.5-Coder (1.5B) has 6.

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