# GPT-6 Sol vs Granite 4.2 30b

> GPT-6 Sol is the stronger model overall, scoring 49.2 to 41.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-6-sol-vs-granite-4-2-30b
- Last updated: 2026-10-10
- Shared benchmarks: 11

## Summary

- They share 11 benchmarks with published results for both. GPT-6 Sol scores higher in 7 categories and Granite 4.2 30b in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-6 Sol leads 49.3 to 26.7.
- Granite 4.2 30b has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-6 Sol | Granite 4.2 30b |
|---|---|---|
| Provider | OpenAI | IBM |
| Noometry Index | 49.2 | 41.4 |
| Rank | 46 | 126 |
| Context | 1.05M | — |
| Input $/M | $2 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Open |

## Coding

- GPT-6 Sol: 59.6 (#11)
- Granite 4.2 30b: 40.4 (#127)

| Benchmark | GPT-6 Sol | Granite 4.2 30b |
|---|---|---|
| LMArena Coding | 1453 | 1394 |
| DeepSWE | 68.8% | — |
| FrontierCode | 49.3% | — |
| LMArena WebDev | 1692 | — |

## Agentic & Tool Use

- GPT-6 Sol: 33.5 (#49)
- Granite 4.2 30b: —

| Benchmark | GPT-6 Sol | Granite 4.2 30b |
|---|---|---|
| GDP.pdf | 28% | — |

## Reasoning

- GPT-6 Sol: 49.3 (#34)
- Granite 4.2 30b: 26.7 (#114)

| Benchmark | GPT-6 Sol | Granite 4.2 30b |
|---|---|---|
| LMArena Hard Prompts | 1420 | 1375 |
| NYT Connections (extended) | 90.1% | — |
| EBR-Bench | 53.3% | — |

## Math

- GPT-6 Sol: 35.8 (#135)
- Granite 4.2 30b: —

| Benchmark | GPT-6 Sol | Granite 4.2 30b |
|---|---|---|
| LMArena Math | 1404 | — |

## Knowledge

- GPT-6 Sol: 43.0 (#87)
- Granite 4.2 30b: 38.5 (#134)

| Benchmark | GPT-6 Sol | Granite 4.2 30b |
|---|---|---|
| LMArena Expert | 1449 | 1405 |
| Vectara Hallucination Rate | 6.5% | — |

## Multimodal

- GPT-6 Sol: 47.6 (#9)
- Granite 4.2 30b: —

| Benchmark | GPT-6 Sol | Granite 4.2 30b |
|---|---|---|
| Furniture Assembly | 58.3% | — |

## Multilingual

- GPT-6 Sol: 51.0 (#113)
- Granite 4.2 30b: 47.4 (#146)

| Benchmark | GPT-6 Sol | Granite 4.2 30b |
|---|---|---|
| LMArena Non-English | 1389 | 1340 |
| LMArena Chinese | 1416 | 1415 |
| LMArena Russian | 1407 | 1342 |
| LMArena Spanish | 1377 | — |

## Instruction Following

- GPT-6 Sol: 74.4 (#97)
- Granite 4.2 30b: 71.3 (#150)

| Benchmark | GPT-6 Sol | Granite 4.2 30b |
|---|---|---|
| LMArena Instruction Following | 1406 | 1346 |

## Long Context

- GPT-6 Sol: 43.2 (#100)
- Granite 4.2 30b: 41.4 (#135)

| Benchmark | GPT-6 Sol | Granite 4.2 30b |
|---|---|---|
| LMArena Longer Query | 1415 | 1359 |

## Writing & Preference

- GPT-6 Sol: 72.3 (#15)
- Granite 4.2 30b: 54.3 (#147)

| Benchmark | GPT-6 Sol | Granite 4.2 30b |
|---|---|---|
| LMArena Text | 1396 | 1363 |
| LMArena Creative Writing | 1392 | 1294 |
| LMArena Multi-Turn | 1405 | 1340 |
| EQ-Bench Creative Writing | 2125 | — |

## FAQ

### Is GPT-6 Sol better than Granite 4.2 30b?

GPT-6 Sol is the stronger model overall, scoring 49.2 to 41.4 on the Noometry Index.

### Is GPT-6 Sol or Granite 4.2 30b better for coding?

GPT-6 Sol scores higher on coding benchmarks: 59.6 versus 40.4 in the Noometry coding category.

### How many benchmarks do GPT-6 Sol and Granite 4.2 30b share?

11 benchmarks have published results for both models. GPT-6 Sol has 22 scored results on Noometry and Granite 4.2 30b has 11.