Model comparison
GPT-4.5 vs Granite 4.2 3b
Granite 4.2 3b is the stronger model overall, scoring 39.4 to 37.2 on the Noometry Index.
Last verified . 11 shared benchmarks.
Summary
- They share 11 benchmarks with published results for both. GPT-4.5 scores higher in 5 categories and Granite 4.2 3b in 2 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Granite 4.2 3b leads 26.0 to 13.9.
- Granite 4.2 3b has downloadable open weights; the other is API-only.
Side by side
| GPT-4.5 | Granite 4.2 3b | |
|---|---|---|
| Provider | OpenAI | IBM |
| Noometry Index | 37.2 | 39.4 |
| Released | 2025-02-27 | — |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 42 | 11 |
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Category by category
Coding GPT-4.5 leads
GPT-4.5: 42.2 (#109), Granite 4.2 3b: 40.0 (#151)
| Benchmark | GPT-4.5 | Granite 4.2 3b |
|---|---|---|
| LMArena Coding | 1396 | 1361 |
| Aider Polyglot | 44.9% | — |
| WeirdML | 39.4% | — |
| LiveBench Coding | 75.2% | — |
Agentic & Tool Use Not comparable
GPT-4.5: 27.9 (#97), Granite 4.2 3b: —
| Benchmark | GPT-4.5 | Granite 4.2 3b |
|---|---|---|
| Cybench | 17.5% | — |
Reasoning Granite 4.2 3b leads
GPT-4.5: 13.9 (#330), Granite 4.2 3b: 26.0 (#138)
| Benchmark | GPT-4.5 | Granite 4.2 3b |
|---|---|---|
| LMArena Hard Prompts | 1403 | 1306 |
| 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 Not comparable
GPT-4.5: 32.6 (#211), Granite 4.2 3b: —
| Benchmark | GPT-4.5 | Granite 4.2 3b |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 37.8% | — |
| LiveBench Math | 69.3% | — |
| LMArena Math | 1412 | — |
| MATH Level 5 | 78.6% | — |
Knowledge Granite 4.2 3b leads
GPT-4.5: 32.5 (#211), Granite 4.2 3b: 36.3 (#171)
| Benchmark | GPT-4.5 | Granite 4.2 3b |
|---|---|---|
| LMArena Expert | 1394 | 1315 |
| GPQA Diamond | 68.7% | — |
| Humanity's Last Exam | 5.4% | — |
| Confabulations | 13.6% | — |
Multimodal Not comparable
GPT-4.5: 37.6 (#71), Granite 4.2 3b: —
| Benchmark | GPT-4.5 | Granite 4.2 3b |
|---|---|---|
| LMArena Vision | 1195 | — |
| VPCT | 45% | — |
Multilingual GPT-4.5 leads
GPT-4.5: 52.5 (#83), Granite 4.2 3b: 42.1 (#198)
| Benchmark | GPT-4.5 | Granite 4.2 3b |
|---|---|---|
| LMArena Non-English | 1413 | 1268 |
| LMArena Chinese | 1421 | 1269 |
| LMArena Russian | 1419 | 1249 |
| LMArena French | 1418 | — |
| LMArena German | 1457 | — |
| LMArena Japanese | 1416 | — |
| LMArena Korean | 1392 | — |
Instruction Following GPT-4.5 leads
GPT-4.5: 72.6 (#134), Granite 4.2 3b: 67.1 (#200)
| Benchmark | GPT-4.5 | Granite 4.2 3b |
|---|---|---|
| LMArena Instruction Following | 1404 | 1273 |
| LiveBench Instruction Following | 72.3% | — |
Long Context GPT-4.5 leads
GPT-4.5: 40.4 (#155), Granite 4.2 3b: 39.2 (#185)
| Benchmark | GPT-4.5 | Granite 4.2 3b |
|---|---|---|
| LMArena Longer Query | 1406 | 1291 |
| Fiction.LiveBench | 63.9% | — |
Writing & Preference GPT-4.5 leads
GPT-4.5: 56.9 (#134), Granite 4.2 3b: 47.2 (#212)
| Benchmark | GPT-4.5 | Granite 4.2 3b |
|---|---|---|
| LMArena Text | 1417 | 1293 |
| LMArena Creative Writing | 1394 | 1205 |
| LMArena Multi-Turn | 1444 | 1290 |
| Short-Story Creative Writing | 75.6% | — |
| EQ-Bench Creative Writing | 1258 | — |
| LiveBench Language | 61.5% | — |
Frequently asked questions
Is GPT-4.5 better than Granite 4.2 3b?
Granite 4.2 3b is the stronger model overall, scoring 39.4 to 37.2 on the Noometry Index.
Is GPT-4.5 or Granite 4.2 3b better for coding?
GPT-4.5 scores higher on coding benchmarks: 42.2 versus 40.0 in the Noometry coding category.
How many benchmarks do GPT-4.5 and Granite 4.2 3b share?
11 benchmarks have published results for both models. GPT-4.5 has 42 scored results on Noometry and Granite 4.2 3b has 11.