Model comparison

GPT-5 Mini vs Granite 4.0 H Small

GPT-5 Mini is the stronger model overall, scoring 41.8 to 36.5 on the Noometry Index.

Last verified . 19 shared benchmarks.

GPT-5 Mini OpenAI

41.8

Rank #128 Confirmed

Granite 4.0 H Small IBM

36.5

Rank #214 Confirmed

Summary

  • They share 19 benchmarks with published results for both. GPT-5 Mini scores higher in 7 categories and Granite 4.0 H Small in 1 category; 7 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5 Mini leads 46.7 to 31.4.
  • The biggest single-benchmark swing is Omni-MATH: 72.2% for GPT-5 Mini and 29.6% 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 Mini and Granite 4.0 H Small specifications
GPT-5 MiniGranite 4.0 H Small
ProviderOpenAIIBM
Noometry Index41.836.5
Released2025-08-07—
WeightsProprietaryOpen
Context window400K—
Max output128K—
Input $ / M tokens$0.25—
Output $ / M tokens$2—
Results tracked6019

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Category by category

Coding GPT-5 Mini leads

GPT-5 Mini: 40.1 (#146), Granite 4.0 H Small: 36.4 (#209)

Coding benchmarks
BenchmarkGPT-5 MiniGranite 4.0 H Small
LMArena Coding14061249
SWE-bench Verified64.7%—
SWE-bench Verified (bash only)59.8%—
SWE-bench Multilingual39.7%—
SciCode39.2%—
WeirdML52.7%—
ALE-Bench799.77—
AlgoTune1.38—

Agentic & Tool Use Not comparable

GPT-5 Mini: 31.1 (#70), Granite 4.0 H Small: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5 MiniGranite 4.0 H Small
Terminal-Bench34.8%—
Berkeley Function Calling Leaderboard55.5%—
Vending-Bench 2-31.18—

Reasoning Too close to call

GPT-5 Mini: 23.9 (#168), Granite 4.0 H Small: 24.4 (#163)

Reasoning benchmarks
BenchmarkGPT-5 MiniGranite 4.0 H Small
LMArena Hard Prompts13801240
ARC-AGI-24.4%—
Kagi LLM Benchmark70.3%—
ARC-AGI-154.3%—
CritPt0%—
Chess Puzzles30%—
EnigmaEval8.2%—
Mystery Game Puzzles10%—
DTBench80.5%—
LMCA34.2%—
Epoch Capabilities Index145.52—
ForecastBench61—

Math GPT-5 Mini leads

GPT-5 Mini: 46.7 (#69), Granite 4.0 H Small: 31.4 (#223)

Math benchmarks
BenchmarkGPT-5 MiniGranite 4.0 H Small
Omni-MATH72.2%29.6%
LMArena Math13781247
FrontierMath (Tiers 1-3)46.7%—
FrontierMath Tier 412.2%—
OTIS Mock AIME 2024-202586.7%—
ProofBench9%—
MATH Level 597.8%—
FrontierMath (Feb 2025 set)27.2%—
FrontierMath Tier 4 (v1)6.3%—

Knowledge GPT-5 Mini leads

GPT-5 Mini: 45.6 (#86), Granite 4.0 H Small: 32.0 (#215)

Knowledge benchmarks
BenchmarkGPT-5 MiniGranite 4.0 H Small
MMLU-Pro83.5%56.9%
Vectara Hallucination Rate12.9%5.2%
GPQA (HELM)75.6%38.3%
LMArena Expert13791251
GPQA Diamond75%—
Humanity's Last Exam19.4%—
SimpleQA Verified21.6%—
Confabulations13.3%—

Multimodal Not comparable

GPT-5 Mini: 35.6 (#85), Granite 4.0 H Small: —

Multimodal benchmarks
BenchmarkGPT-5 MiniGranite 4.0 H Small
LMArena Vision1202—
VPCT40.2%—

Multilingual GPT-5 Mini leads

GPT-5 Mini: 48.9 (#137), Granite 4.0 H Small: 38.6 (#228)

Multilingual benchmarks
BenchmarkGPT-5 MiniGranite 4.0 H Small
LMArena Non-English13631216
LMArena Chinese13851249
LMArena Russian13621201
LMArena Spanish13551258
LMArena French1386—
LMArena German1366—
LMArena Japanese1341—
LMArena Korean1308—

Instruction Following GPT-5 Mini leads

GPT-5 Mini: 76.2 (#46), Granite 4.0 H Small: 68.7 (#183)

Instruction Following benchmarks
BenchmarkGPT-5 MiniGranite 4.0 H Small
IFEval92.7%89%
LMArena Instruction Following13571222

Long Context GPT-5 Mini leads

GPT-5 Mini: 41.9 (#132), Granite 4.0 H Small: 37.7 (#213)

Long Context benchmarks
BenchmarkGPT-5 MiniGranite 4.0 H Small
LMArena Longer Query13551242
Fiction.LiveBench69.4%—

Writing & Preference GPT-5 Mini leads

GPT-5 Mini: 55.2 (#148), Granite 4.0 H Small: 43.8 (#227)

Writing & Preference benchmarks
BenchmarkGPT-5 MiniGranite 4.0 H Small
LMArena Text13731241
LMArena Creative Writing13251211
WildBench85.5%73.9%
LMArena Multi-Turn13631242
Short-Story Creative Writing83.1%—
EQ-Bench Creative Writing1313—

Frequently asked questions

Is GPT-5 Mini better than Granite 4.0 H Small?

GPT-5 Mini is the stronger model overall, scoring 41.8 to 36.5 on the Noometry Index.

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

GPT-5 Mini scores higher on coding benchmarks: 40.1 versus 36.4 in the Noometry coding category.

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

19 benchmarks have published results for both models. GPT-5 Mini has 60 scored results on Noometry and Granite 4.0 H Small has 19.

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