# GPT-4.5 vs Granite 4.0 H Small

> GPT-4.5 and Granite 4.0 H Small score almost the same on the Noometry Index (37.2 vs 36.5), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/gpt-4-5-vs-ibm-granite-h-small
- Last updated: 2026-10-10
- Shared benchmarks: 12

## Summary

- They share 12 benchmarks with published results for both. GPT-4.5 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 multilingual, where GPT-4.5 leads 52.5 to 38.6.
- Granite 4.0 H Small has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-4.5 | Granite 4.0 H Small |
|---|---|---|
| Provider | OpenAI | IBM |
| Noometry Index | 37.2 | 36.5 |
| Rank | 208 | 214 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- GPT-4.5: 42.2 (#109)
- Granite 4.0 H Small: 36.4 (#209)

| Benchmark | GPT-4.5 | Granite 4.0 H Small |
|---|---|---|
| LMArena Coding | 1396 | 1249 |
| Aider Polyglot | 44.9% | — |
| WeirdML | 39.4% | — |
| LiveBench Coding | 75.2% | — |

## Agentic & Tool Use

- GPT-4.5: 27.9 (#97)
- Granite 4.0 H Small: —

| Benchmark | GPT-4.5 | Granite 4.0 H Small |
|---|---|---|
| Cybench | 17.5% | — |

## Reasoning

- GPT-4.5: 13.9 (#330)
- Granite 4.0 H Small: 24.4 (#163)

| Benchmark | GPT-4.5 | Granite 4.0 H Small |
|---|---|---|
| LMArena Hard Prompts | 1403 | 1240 |
| ARC-AGI-2 | 0.8% | — |
| SimpleBench | 34.5% | — |
| ARC-AGI-1 | 10.3% | — |
| EnigmaEval | 3.2% | — |
| LiveBench Reasoning | 71.1% | — |
| LiveBench Data Analysis | 64.3% | — |
| Epoch Capabilities Index | 136.74 | — |
| ForecastBench | 61.7 | — |
| LiveBench | 69% | — |

## Math

- GPT-4.5: 32.6 (#211)
- Granite 4.0 H Small: 31.4 (#223)

| Benchmark | GPT-4.5 | Granite 4.0 H Small |
|---|---|---|
| LMArena Math | 1412 | 1247 |
| OTIS Mock AIME 2024-2025 | 37.8% | — |
| Omni-MATH | — | 29.6% |
| LiveBench Math | 69.3% | — |
| MATH Level 5 | 78.6% | — |

## Knowledge

- GPT-4.5: 32.5 (#211)
- Granite 4.0 H Small: 32.0 (#215)

| Benchmark | GPT-4.5 | Granite 4.0 H Small |
|---|---|---|
| LMArena Expert | 1394 | 1251 |
| GPQA Diamond | 68.7% | — |
| Humanity's Last Exam | 5.4% | — |
| MMLU-Pro | — | 56.9% |
| Confabulations | 13.6% | — |
| Vectara Hallucination Rate | — | 5.2% |
| GPQA (HELM) | — | 38.3% |

## Multimodal

- GPT-4.5: 37.6 (#71)
- Granite 4.0 H Small: —

| Benchmark | GPT-4.5 | Granite 4.0 H Small |
|---|---|---|
| LMArena Vision | 1195 | — |
| VPCT | 45% | — |

## Multilingual

- GPT-4.5: 52.5 (#83)
- Granite 4.0 H Small: 38.6 (#228)

| Benchmark | GPT-4.5 | Granite 4.0 H Small |
|---|---|---|
| LMArena Non-English | 1413 | 1216 |
| LMArena Chinese | 1421 | 1249 |
| LMArena Russian | 1419 | 1201 |
| LMArena French | 1418 | — |
| LMArena German | 1457 | — |
| LMArena Japanese | 1416 | — |
| LMArena Korean | 1392 | — |
| LMArena Spanish | — | 1258 |

## Instruction Following

- GPT-4.5: 72.6 (#134)
- Granite 4.0 H Small: 68.7 (#183)

| Benchmark | GPT-4.5 | Granite 4.0 H Small |
|---|---|---|
| LMArena Instruction Following | 1404 | 1222 |
| LiveBench Instruction Following | 72.3% | — |
| IFEval | — | 89% |

## Long Context

- GPT-4.5: 40.4 (#155)
- Granite 4.0 H Small: 37.7 (#213)

| Benchmark | GPT-4.5 | Granite 4.0 H Small |
|---|---|---|
| LMArena Longer Query | 1406 | 1242 |
| Fiction.LiveBench | 63.9% | — |

## Writing & Preference

- GPT-4.5: 56.9 (#134)
- Granite 4.0 H Small: 43.8 (#227)

| Benchmark | GPT-4.5 | Granite 4.0 H Small |
|---|---|---|
| LMArena Text | 1417 | 1241 |
| LMArena Creative Writing | 1394 | 1211 |
| LMArena Multi-Turn | 1444 | 1242 |
| Short-Story Creative Writing | 75.6% | — |
| EQ-Bench Creative Writing | 1258 | — |
| WildBench | — | 73.9% |
| LiveBench Language | 61.5% | — |

## FAQ

### Is GPT-4.5 better than Granite 4.0 H Small?

GPT-4.5 and Granite 4.0 H Small score almost the same on the Noometry Index (37.2 vs 36.5), so choose on price, context window or the category you care about most.

### Is GPT-4.5 or Granite 4.0 H Small better for coding?

GPT-4.5 scores higher on coding benchmarks: 42.2 versus 36.4 in the Noometry coding category.

### How many benchmarks do GPT-4.5 and Granite 4.0 H Small share?

12 benchmarks have published results for both models. GPT-4.5 has 42 scored results on Noometry and Granite 4.0 H Small has 19.