Model comparison

GPT-5 vs Granite 4.0 H Small

GPT-5 is the stronger model overall, scoring 50.9 to 36.5 on the Noometry Index.

Last verified . 19 shared benchmarks.

GPT-5 OpenAI

50.9

Rank #45 Confirmed

Granite 4.0 H Small IBM

36.5

Rank #214 Confirmed

Summary

  • They share 19 benchmarks with published results for both. GPT-5 scores higher in 8 categories and Granite 4.0 H Small in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in long context, where GPT-5 leads 69.5 to 37.7.
  • The biggest single-benchmark swing is GPQA (HELM): 79.2% for GPT-5 and 38.3% for Granite 4.0 H Small.
  • Granite 4.0 H Small has downloadable open weights; the other is API-only.

Side by side

GPT-5 and Granite 4.0 H Small specifications
GPT-5Granite 4.0 H Small
ProviderOpenAIIBM
Noometry Index50.936.5
Released2025-08-07—
WeightsProprietaryOpen
Context window400K—
Max output128K—
Input $ / M tokens$1.25—
Output $ / M tokens$10—
Results tracked6919

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Category by category

Coding GPT-5 leads

GPT-5: 50.3 (#47), Granite 4.0 H Small: 36.4 (#209)

Coding benchmarks
BenchmarkGPT-5Granite 4.0 H Small
LMArena Coding14361249
SWE-bench Verified73.6%—
SWE-bench Verified (bash only)65%—
Aider Polyglot88%—
LMArena WebDev1418—
SciCode42.9%—
GSO6.9%—
WeirdML60.7%—
ALE-Bench1,162—
AlgoTune1.67—

Agentic & Tool Use Not comparable

GPT-5: 33.1 (#56), Granite 4.0 H Small: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5Granite 4.0 H Small
Terminal-Bench49.6%—
GDPval34.8%—
Remote Labor Index1.7%—
DeepResearch Bench49.6%—
BALROG32.8%—
LMArena Search1133—
METR Time Horizons69.6%—

Reasoning GPT-5 leads

GPT-5: 38.3 (#64), Granite 4.0 H Small: 24.4 (#163)

Reasoning benchmarks
BenchmarkGPT-5Granite 4.0 H Small
LMArena Hard Prompts14161240
ARC-AGI-29.9%—
SimpleBench56.7%—
Kagi LLM Benchmark72.7%—
ARC-AGI-165.7%—
CritPt12.6%—
Chess Puzzles37%—
EnigmaEval10.5%—
EBR-Bench12.7%—
Mystery Game Puzzles23%—
DTBench90.7%—
LMCA40%—
Epoch Capabilities Index150—
ForecastBench61.4—

Math GPT-5 leads

GPT-5: 55.0 (#44), Granite 4.0 H Small: 31.4 (#223)

Math benchmarks
BenchmarkGPT-5Granite 4.0 H Small
Omni-MATH64.7%29.6%
LMArena Math14071247
FrontierMath (Tiers 1-3)55.4%—
FrontierMath Tier 422%—
OTIS Mock AIME 2024-202591.4%—
ProofBench18%—
MATH Level 598.1%—
FrontierMath (Feb 2025 set)32.4%—
FrontierMath Tier 4 (v1)12.5%—

Knowledge GPT-5 leads

GPT-5: 56.6 (#43), Granite 4.0 H Small: 32.0 (#215)

Knowledge benchmarks
BenchmarkGPT-5Granite 4.0 H Small
MMLU-Pro86.3%56.9%
Vectara Hallucination Rate14.7%5.2%
GPQA (HELM)79.2%38.3%
LMArena Expert14191251
GPQA Diamond86.2%—
Humanity's Last Exam25.3%—
SimpleQA Verified50.1%—
Confabulations10.3%—

Multimodal Not comparable

GPT-5: 46.8 (#13), Granite 4.0 H Small: —

Multimodal benchmarks
BenchmarkGPT-5Granite 4.0 H Small
LMArena Vision1232—
GeoBench81%—
VPCT66%—

Multilingual GPT-5 leads

GPT-5: 51.4 (#110), Granite 4.0 H Small: 38.6 (#228)

Multilingual benchmarks
BenchmarkGPT-5Granite 4.0 H Small
LMArena Non-English13971216
LMArena Chinese14221249
LMArena Russian14061201
LMArena Spanish13991258
LMArena French1410—
LMArena German1416—
LMArena Japanese1409—
LMArena Korean1360—

Instruction Following GPT-5 leads

GPT-5: 73.8 (#113), Granite 4.0 H Small: 68.7 (#183)

Instruction Following benchmarks
BenchmarkGPT-5Granite 4.0 H Small
IFEval87.5%89%
LMArena Instruction Following13881222

Long Context GPT-5 leads

GPT-5: 69.5 (#2), Granite 4.0 H Small: 37.7 (#213)

Long Context benchmarks
BenchmarkGPT-5Granite 4.0 H Small
LMArena Longer Query13991242
Fiction.LiveBench97.2%—

Writing & Preference GPT-5 leads

GPT-5: 63.4 (#65), Granite 4.0 H Small: 43.8 (#227)

Writing & Preference benchmarks
BenchmarkGPT-5Granite 4.0 H Small
LMArena Text14061241
LMArena Creative Writing13651211
WildBench85.7%73.9%
LMArena Multi-Turn14261242
Short-Story Creative Writing86%—
EQ-Bench Creative Writing1627—

Frequently asked questions

Is GPT-5 better than Granite 4.0 H Small?

GPT-5 is the stronger model overall, scoring 50.9 to 36.5 on the Noometry Index.

Is GPT-5 or Granite 4.0 H Small better for coding?

GPT-5 scores higher on coding benchmarks: 50.3 versus 36.4 in the Noometry coding category.

How many benchmarks do GPT-5 and Granite 4.0 H Small share?

19 benchmarks have published results for both models. GPT-5 has 69 scored results on Noometry and Granite 4.0 H Small has 19.

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