Model comparison
GPT-5.3 Chat vs Granite 3.0 2b Instruct
GPT-5.3 Chat is the stronger model overall, scoring 42.1 to 30.2 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 2b 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 29.8.
- Granite 3.0 2b Instruct has downloadable open weights; the other is API-only.
Side by side
| GPT-5.3 Chat | Granite 3.0 2b Instruct | |
|---|---|---|
| Provider | OpenAI | IBM |
| Noometry Index | 42.1 | 30.2 |
| 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 | 13 |
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Category by category
Coding GPT-5.3 Chat leads
GPT-5.3 Chat: 40.8 (#124), Granite 3.0 2b Instruct: 27.8 (#311)
| Benchmark | GPT-5.3 Chat | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Coding | 1408 | 1090 |
| BigCodeBench Instruct | — | 20.5% |
Reasoning GPT-5.3 Chat leads
GPT-5.3 Chat: 27.3 (#105), Granite 3.0 2b Instruct: 19.6 (#234)
| Benchmark | GPT-5.3 Chat | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1399 | 1073 |
Math GPT-5.3 Chat leads
GPT-5.3 Chat: 35.4 (#146), Granite 3.0 2b Instruct: 29.7 (#215)
| Benchmark | GPT-5.3 Chat | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Math | 1389 | 1117 |
Knowledge GPT-5.3 Chat leads
GPT-5.3 Chat: 38.2 (#137), Granite 3.0 2b Instruct: 28.4 (#238)
| Benchmark | GPT-5.3 Chat | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Expert | 1397 | 1064 |
Multilingual GPT-5.3 Chat leads
GPT-5.3 Chat: 50.5 (#119), Granite 3.0 2b Instruct: 27.1 (#273)
| Benchmark | GPT-5.3 Chat | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Non-English | 1383 | 1033 |
| LMArena Chinese | 1433 | 1070 |
| LMArena Russian | 1400 | 1045 |
| 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 2b Instruct: 54.2 (#279)
| Benchmark | GPT-5.3 Chat | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Instruction Following | 1378 | 1056 |
Long Context GPT-5.3 Chat leads
GPT-5.3 Chat: 42.6 (#115), Granite 3.0 2b Instruct: 32.5 (#263)
| Benchmark | GPT-5.3 Chat | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Longer Query | 1396 | 1071 |
Writing & Preference GPT-5.3 Chat leads
GPT-5.3 Chat: 63.3 (#65), Granite 3.0 2b Instruct: 29.8 (#287)
| Benchmark | GPT-5.3 Chat | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Text | 1389 | 1080 |
| LMArena Creative Writing | 1356 | 1046 |
| LMArena Multi-Turn | 1413 | 1053 |
| EQ-Bench Creative Writing | 1690 | — |
Frequently asked questions
Is GPT-5.3 Chat better than Granite 3.0 2b Instruct?
GPT-5.3 Chat is the stronger model overall, scoring 42.1 to 30.2 on the Noometry Index.
Is GPT-5.3 Chat or Granite 3.0 2b Instruct better for coding?
GPT-5.3 Chat scores higher on coding benchmarks: 40.8 versus 27.8 in the Noometry coding category.
How many benchmarks do GPT-5.3 Chat and Granite 3.0 2b Instruct share?
12 benchmarks have published results for both models. GPT-5.3 Chat has 18 scored results on Noometry and Granite 3.0 2b Instruct has 13.