Model comparison
GPT-5.3 Chat vs Granite 4.0 H Small
GPT-5.3 Chat is the stronger model overall, scoring 42.1 to 35.9 on the Noometry Index.
Last verified . 13 shared benchmarks.
Summary
- They share 13 benchmarks with published results for both. GPT-5.3 Chat 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 writing & preference, where GPT-5.3 Chat leads 63.3 to 44.0.
- Granite 4.0 H Small has downloadable open weights; the other is API-only.
Side by side
| GPT-5.3 Chat | Granite 4.0 H Small | |
|---|---|---|
| Provider | OpenAI | IBM |
| Noometry Index | 42.1 | 35.9 |
| Released | 2026-03-03 | — |
| Weights | Proprietary | Open |
| Context window | 128K | — |
| Max output | 16K | — |
| Input $ / M tokens | $1.75 | — |
| Output $ / M tokens | $14 | — |
| Results tracked | 18 | 19 |
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Category by category
Coding GPT-5.3 Chat leads
GPT-5.3 Chat: 40.8 (#124), Granite 4.0 H Small: 35.8 (#207)
| Benchmark | GPT-5.3 Chat | Granite 4.0 H Small |
|---|---|---|
| LMArena Coding | 1408 | 1247 |
Reasoning GPT-5.3 Chat leads
GPT-5.3 Chat: 27.3 (#105), Granite 4.0 H Small: 23.4 (#164)
| Benchmark | GPT-5.3 Chat | Granite 4.0 H Small |
|---|---|---|
| LMArena Hard Prompts | 1399 | 1240 |
Math GPT-5.3 Chat leads
GPT-5.3 Chat: 35.4 (#146), Granite 4.0 H Small: 29.3 (#219)
| Benchmark | GPT-5.3 Chat | Granite 4.0 H Small |
|---|---|---|
| LMArena Math | 1389 | 1251 |
| Omni-MATH | — | 29.6% |
Knowledge GPT-5.3 Chat leads
GPT-5.3 Chat: 38.2 (#137), Granite 4.0 H Small: 31.5 (#210)
| Benchmark | GPT-5.3 Chat | Granite 4.0 H Small |
|---|---|---|
| LMArena Expert | 1397 | 1244 |
| MMLU-Pro | — | 56.9% |
| Vectara Hallucination Rate | — | 5.2% |
| GPQA (HELM) | — | 38.3% |
Multilingual GPT-5.3 Chat leads
GPT-5.3 Chat: 50.5 (#119), Granite 4.0 H Small: 38.7 (#223)
| Benchmark | GPT-5.3 Chat | Granite 4.0 H Small |
|---|---|---|
| LMArena Non-English | 1383 | 1216 |
| LMArena Chinese | 1433 | 1250 |
| LMArena Russian | 1400 | 1198 |
| LMArena Spanish | 1371 | 1258 |
| LMArena French | 1398 | — |
| LMArena German | 1384 | — |
| LMArena Japanese | 1351 | — |
| LMArena Korean | 1347 | — |
Instruction Following GPT-5.3 Chat leads
GPT-5.3 Chat: 73.0 (#124), Granite 4.0 H Small: 68.9 (#178)
| Benchmark | GPT-5.3 Chat | Granite 4.0 H Small |
|---|---|---|
| LMArena Instruction Following | 1378 | 1221 |
| IFEval | — | 89% |
Long Context GPT-5.3 Chat leads
GPT-5.3 Chat: 42.6 (#115), Granite 4.0 H Small: 37.6 (#209)
| Benchmark | GPT-5.3 Chat | Granite 4.0 H Small |
|---|---|---|
| LMArena Longer Query | 1396 | 1240 |
Writing & Preference GPT-5.3 Chat leads
GPT-5.3 Chat: 63.3 (#65), Granite 4.0 H Small: 44.0 (#222)
| Benchmark | GPT-5.3 Chat | Granite 4.0 H Small |
|---|---|---|
| LMArena Text | 1389 | 1241 |
| LMArena Creative Writing | 1356 | 1210 |
| LMArena Multi-Turn | 1413 | 1243 |
| EQ-Bench Creative Writing | 1690 | — |
| WildBench | — | 73.9% |
Frequently asked questions
Is GPT-5.3 Chat better than Granite 4.0 H Small?
GPT-5.3 Chat is the stronger model overall, scoring 42.1 to 35.9 on the Noometry Index.
Is GPT-5.3 Chat or Granite 4.0 H Small better for coding?
GPT-5.3 Chat scores higher on coding benchmarks: 40.8 versus 35.8 in the Noometry coding category.
How many benchmarks do GPT-5.3 Chat and Granite 4.0 H Small share?
13 benchmarks have published results for both models. GPT-5.3 Chat has 18 scored results on Noometry and Granite 4.0 H Small has 19.