Model comparison

GPT-5 vs StarCoder 2 3B

GPT-5 has enough public results to be ranked (#45); StarCoder 2 3B does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

GPT-5 OpenAI

50.9

Rank #45 Confirmed

StarCoder 2 3B NVIDIA

36.3

Unranked Sparse

Summary

  • They share 1 benchmark with published results for both. GPT-5 scores higher in 1 category and StarCoder 2 3B in 0 categories; one gap is clear of the uncertainty.
  • The widest gap is in coding, where GPT-5 leads 50.3 to 33.5.
  • StarCoder 2 3B has downloadable open weights; the other is API-only.

Side by side

GPT-5 and StarCoder 2 3B specifications
GPT-5StarCoder 2 3B
ProviderOpenAINVIDIA
Noometry Index50.936.3
Released2025-08-072024-02-22
WeightsProprietaryOpen
Context window400K—
Max output128K—
Input $ / M tokens$1.25—
Output $ / M tokens$10—
Results tracked697

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Category by category

Coding GPT-5 leads

GPT-5: 50.3 (#47), StarCoder 2 3B: 33.5

Coding benchmarks
BenchmarkGPT-5StarCoder 2 3B
SWE-bench Verified73.6%—
SWE-bench Verified (bash only)65%—
Aider Polyglot88%—
LMArena WebDev1418—
SciCode42.9%—
GSO6.9%—
WeirdML60.7%—
LMArena Coding1436—
BigCodeBench Complete—21.4%
ALE-Bench1,162—
AlgoTune1.67—
HumanEval+—27.4%

Agentic & Tool Use Not comparable

GPT-5: 33.1 (#56), StarCoder 2 3B: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5StarCoder 2 3B
Terminal-Bench49.6%—
GDPval34.8%—
Remote Labor Index1.7%—
DeepResearch Bench49.6%—
BALROG32.8%—
LMArena Search1133—
METR Time Horizons69.6%—

Reasoning Not comparable

GPT-5: 38.3 (#64), StarCoder 2 3B: —

Reasoning benchmarks
BenchmarkGPT-5StarCoder 2 3B
Epoch Capabilities Index15088.76
ARC-AGI-29.9%—
SimpleBench56.7%—
Kagi LLM Benchmark72.7%—
ARC-AGI-165.7%—
CritPt12.6%—
Chess Puzzles37%—
EnigmaEval10.5%—
EBR-Bench12.7%—
LMArena Hard Prompts1416—
Mystery Game Puzzles23%—
DTBench90.7%—
LMCA40%—
ForecastBench61.4—
WinoGrande—57.1%

Math Not comparable

GPT-5: 55.0 (#44), StarCoder 2 3B: —

Math benchmarks
BenchmarkGPT-5StarCoder 2 3B
FrontierMath (Tiers 1-3)55.4%—
FrontierMath Tier 422%—
OTIS Mock AIME 2024-202591.4%—
ProofBench18%—
Omni-MATH64.7%—
LMArena Math1407—
MATH Level 598.1%—
FrontierMath (Feb 2025 set)32.4%—
FrontierMath Tier 4 (v1)12.5%—
GSM8K—21.6%

Knowledge Not comparable

GPT-5: 56.6 (#43), StarCoder 2 3B: —

Knowledge benchmarks
BenchmarkGPT-5StarCoder 2 3B
GPQA Diamond86.2%—
Humanity's Last Exam25.3%—
SimpleQA Verified50.1%—
MMLU-Pro86.3%—
Confabulations10.3%—
Vectara Hallucination Rate14.7%—
GPQA (HELM)79.2%—
LMArena Expert1419—
ARC (AI2) Challenge—34.2%
MMLU—36.6%

Multimodal Not comparable

GPT-5: 46.8 (#13), StarCoder 2 3B: —

Multimodal benchmarks
BenchmarkGPT-5StarCoder 2 3B
LMArena Vision1232—
GeoBench81%—
VPCT66%—

Multilingual Not comparable

GPT-5: 51.4 (#110), StarCoder 2 3B: —

Multilingual benchmarks
BenchmarkGPT-5StarCoder 2 3B
LMArena Non-English1397—
LMArena Chinese1422—
LMArena French1410—
LMArena German1416—
LMArena Japanese1409—
LMArena Korean1360—
LMArena Russian1406—
LMArena Spanish1399—

Instruction Following Not comparable

GPT-5: 73.8 (#113), StarCoder 2 3B: —

Instruction Following benchmarks
BenchmarkGPT-5StarCoder 2 3B
IFEval87.5%—
LMArena Instruction Following1388—

Long Context Not comparable

GPT-5: 69.5 (#2), StarCoder 2 3B: —

Long Context benchmarks
BenchmarkGPT-5StarCoder 2 3B
Fiction.LiveBench97.2%—
LMArena Longer Query1399—

Writing & Preference Not comparable

GPT-5: 63.4 (#65), StarCoder 2 3B: —

Writing & Preference benchmarks
BenchmarkGPT-5StarCoder 2 3B
LMArena Text1406—
LMArena Creative Writing1365—
Short-Story Creative Writing86%—
EQ-Bench Creative Writing1627—
WildBench85.7%—
LMArena Multi-Turn1426—

Frequently asked questions

Is GPT-5 better than StarCoder 2 3B?

GPT-5 has enough public results to be ranked (#45); StarCoder 2 3B does not yet, so treat this comparison as directional.

Is GPT-5 or StarCoder 2 3B better for coding?

GPT-5 scores higher on coding benchmarks: 50.3 versus 33.5 in the Noometry coding category.

How many benchmarks do GPT-5 and StarCoder 2 3B share?

1 benchmark has published results for both models. GPT-5 has 69 scored results on Noometry and StarCoder 2 3B has 7.

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