Model comparison
GPT-5.3 Chat vs Granite 3.0 8b Instruct
GPT-5.3 Chat is the stronger model overall, scoring 42.1 to 31.1 on the Noometry Index.
Last verified . 12 shared benchmarks.
Summary
- They share 12 benchmarks with published results for both. GPT-5.3 Chat scores higher in 8 categories and Granite 3.0 8b Instruct 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 31.2.
- Granite 3.0 8b Instruct has downloadable open weights; the other is API-only.
Side by side
| GPT-5.3 Chat | Granite 3.0 8b Instruct | |
|---|---|---|
| Provider | OpenAI | IBM |
| Noometry Index | 42.1 | 31.1 |
| 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 | 14 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding GPT-5.3 Chat leads
GPT-5.3 Chat: 40.8 (#124), Granite 3.0 8b Instruct: 29.1 (#297)
| Benchmark | GPT-5.3 Chat | Granite 3.0 8b Instruct |
|---|---|---|
| LMArena Coding | 1408 | 1113 |
| BigCodeBench Instruct | — | 29.3% |
| BigCodeBench Complete | — | 35.4% |
Reasoning GPT-5.3 Chat leads
GPT-5.3 Chat: 27.3 (#105), Granite 3.0 8b Instruct: 20.0 (#227)
| Benchmark | GPT-5.3 Chat | Granite 3.0 8b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1399 | 1092 |
Math GPT-5.3 Chat leads
GPT-5.3 Chat: 35.4 (#146), Granite 3.0 8b Instruct: 30.3 (#211)
| Benchmark | GPT-5.3 Chat | Granite 3.0 8b Instruct |
|---|---|---|
| LMArena Math | 1389 | 1143 |
Knowledge GPT-5.3 Chat leads
GPT-5.3 Chat: 38.2 (#137), Granite 3.0 8b Instruct: 29.1 (#233)
| Benchmark | GPT-5.3 Chat | Granite 3.0 8b Instruct |
|---|---|---|
| LMArena Expert | 1397 | 1087 |
Multilingual GPT-5.3 Chat leads
GPT-5.3 Chat: 50.5 (#119), Granite 3.0 8b Instruct: 27.4 (#271)
| Benchmark | GPT-5.3 Chat | Granite 3.0 8b Instruct |
|---|---|---|
| LMArena Non-English | 1383 | 1037 |
| LMArena Chinese | 1433 | 1063 |
| LMArena Russian | 1400 | 1060 |
| LMArena French | 1398 | — |
| LMArena German | 1384 | — |
| LMArena Japanese | 1351 | — |
| LMArena Korean | 1347 | — |
| LMArena Spanish | 1371 | — |
Instruction Following GPT-5.3 Chat leads
GPT-5.3 Chat: 73.0 (#124), Granite 3.0 8b Instruct: 56.2 (#271)
| Benchmark | GPT-5.3 Chat | Granite 3.0 8b Instruct |
|---|---|---|
| LMArena Instruction Following | 1378 | 1088 |
Long Context GPT-5.3 Chat leads
GPT-5.3 Chat: 42.6 (#115), Granite 3.0 8b Instruct: 34.0 (#247)
| Benchmark | GPT-5.3 Chat | Granite 3.0 8b Instruct |
|---|---|---|
| LMArena Longer Query | 1396 | 1122 |
Writing & Preference GPT-5.3 Chat leads
GPT-5.3 Chat: 63.3 (#65), Granite 3.0 8b Instruct: 31.2 (#280)
| Benchmark | GPT-5.3 Chat | Granite 3.0 8b Instruct |
|---|---|---|
| LMArena Text | 1389 | 1096 |
| LMArena Creative Writing | 1356 | 1071 |
| LMArena Multi-Turn | 1413 | 1063 |
| EQ-Bench Creative Writing | 1690 | — |
Frequently asked questions
Is GPT-5.3 Chat better than Granite 3.0 8b Instruct?
GPT-5.3 Chat is the stronger model overall, scoring 42.1 to 31.1 on the Noometry Index.
Is GPT-5.3 Chat or Granite 3.0 8b Instruct better for coding?
GPT-5.3 Chat scores higher on coding benchmarks: 40.8 versus 29.1 in the Noometry coding category.
How many benchmarks do GPT-5.3 Chat and Granite 3.0 8b Instruct share?
12 benchmarks have published results for both models. GPT-5.3 Chat has 18 scored results on Noometry and Granite 3.0 8b Instruct has 14.