# Granite 4.0 H Small vs o4-mini

> o4-mini is the stronger model overall, scoring 41.6 to 36.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/ibm-granite-h-small-vs-o4-mini
- Last updated: 2026-10-10
- Shared benchmarks: 19

## Summary

- They share 19 benchmarks with published results for both. Granite 4.0 H Small scores higher in 0 categories and o4-mini in 8 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where o4-mini leads 43.6 to 32.0.
- The biggest single-benchmark swing is Omni-MATH: 29.6% for Granite 4.0 H Small and 72% for o4-mini.
- Granite 4.0 H Small has downloadable open weights; the other is API-only.

## Snapshot

| | Granite 4.0 H Small | o4-mini |
|---|---|---|
| Provider | IBM | OpenAI |
| Noometry Index | 36.5 | 41.6 |
| Rank | 214 | 132 |
| Context | — | 200K |
| Input $/M | — | $1.10 |
| Output $/M | — | $4.40 |
| Weights | Open | Proprietary |

## Coding

- Granite 4.0 H Small: 36.4 (#209)
- o4-mini: 40.9 (#127)

| Benchmark | Granite 4.0 H Small | o4-mini |
|---|---|---|
| LMArena Coding | 1249 | 1368 |
| SWE-bench Verified (bash only) | — | 45% |
| Aider Polyglot | — | 72% |
| GSO | — | 3.6% |
| WeirdML | — | 52.6% |
| CadEval | — | 62% |
| ALE-Bench | — | 826.17 |
| AlgoTune | — | 1.72 |

## Agentic & Tool Use

- Granite 4.0 H Small: —
- o4-mini: 32.6 (#61)

| Benchmark | Granite 4.0 H Small | o4-mini |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 53.2% |
| GDPval | — | 25.3% |
| METR Time Horizons | — | 63.9% |

## Reasoning

- Granite 4.0 H Small: 24.4 (#163)
- o4-mini: 24.6 (#162)

| Benchmark | Granite 4.0 H Small | o4-mini |
|---|---|---|
| LMArena Hard Prompts | 1240 | 1351 |
| ARC-AGI-2 | — | 6.1% |
| SimpleBench | — | 38.7% |
| Kagi LLM Benchmark | — | 67.6% |
| ARC-AGI-1 | — | 58.7% |
| CritPt | — | 0.6% |
| Chess Puzzles | — | 26% |
| EnigmaEval | — | 9.2% |
| Mystery Game Puzzles | — | 5% |
| DTBench | — | 77.6% |
| LMCA | — | 26.5% |
| Epoch Capabilities Index | — | 145.64 |
| ForecastBench | — | 61.8 |

## Math

- Granite 4.0 H Small: 31.4 (#223)
- o4-mini: 40.8 (#89)

| Benchmark | Granite 4.0 H Small | o4-mini |
|---|---|---|
| Omni-MATH | 29.6% | 72% |
| LMArena Math | 1247 | 1389 |
| FrontierMath (Tiers 1-3) | — | 36.1% |
| FrontierMath Tier 4 | — | 4.9% |
| OTIS Mock AIME 2024-2025 | — | 81.7% |
| MATH Level 5 | — | 97.8% |
| FrontierMath (Feb 2025 set) | — | 24.8% |
| FrontierMath Tier 4 (v1) | — | 6.3% |

## Knowledge

- Granite 4.0 H Small: 32.0 (#215)
- o4-mini: 43.6 (#91)

| Benchmark | Granite 4.0 H Small | o4-mini |
|---|---|---|
| MMLU-Pro | 56.9% | 82% |
| Vectara Hallucination Rate | 5.2% | 18.6% |
| GPQA (HELM) | 38.3% | 73.5% |
| LMArena Expert | 1251 | 1343 |
| GPQA Diamond | — | 79.6% |
| Humanity's Last Exam | — | 18.1% |
| SimpleQA Verified | — | 19.6% |
| Confabulations | — | 15.8% |

## Multimodal

- Granite 4.0 H Small: —
- o4-mini: 40.2 (#49)

| Benchmark | Granite 4.0 H Small | o4-mini |
|---|---|---|
| LMArena Vision | — | 1194 |
| GeoBench | — | 64% |
| VPCT | — | 57.5% |

## Multilingual

- Granite 4.0 H Small: 38.6 (#228)
- o4-mini: 47.0 (#154)

| Benchmark | Granite 4.0 H Small | o4-mini |
|---|---|---|
| LMArena Non-English | 1216 | 1337 |
| LMArena Chinese | 1249 | 1354 |
| LMArena Russian | 1201 | 1334 |
| LMArena Spanish | 1258 | 1347 |
| LMArena French | — | 1364 |
| LMArena German | — | 1336 |
| LMArena Japanese | — | 1308 |
| LMArena Korean | — | 1312 |

## Instruction Following

- Granite 4.0 H Small: 68.7 (#183)
- o4-mini: 75.2 (#68)

| Benchmark | Granite 4.0 H Small | o4-mini |
|---|---|---|
| IFEval | 89% | 92.8% |
| LMArena Instruction Following | 1222 | 1321 |

## Long Context

- Granite 4.0 H Small: 37.7 (#213)
- o4-mini: 45.5 (#33)

| Benchmark | Granite 4.0 H Small | o4-mini |
|---|---|---|
| LMArena Longer Query | 1242 | 1315 |
| Fiction.LiveBench | — | 77.8% |

## Writing & Preference

- Granite 4.0 H Small: 43.8 (#227)
- o4-mini: 54.0 (#152)

| Benchmark | Granite 4.0 H Small | o4-mini |
|---|---|---|
| LMArena Text | 1241 | 1353 |
| LMArena Creative Writing | 1211 | 1294 |
| WildBench | 73.9% | 85.4% |
| LMArena Multi-Turn | 1242 | 1350 |
| Short-Story Creative Writing | — | 75% |

## FAQ

### Is Granite 4.0 H Small better than o4-mini?

o4-mini is the stronger model overall, scoring 41.6 to 36.5 on the Noometry Index.

### Is Granite 4.0 H Small or o4-mini better for coding?

o4-mini scores higher on coding benchmarks: 40.9 versus 36.4 in the Noometry coding category.

### How many benchmarks do Granite 4.0 H Small and o4-mini share?

19 benchmarks have published results for both models. Granite 4.0 H Small has 19 scored results on Noometry and o4-mini has 60.