# GPT-5 Pro vs GPT-6 Sol

> GPT-6 Sol is the stronger model overall, scoring 49.2 to 46.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-pro-vs-gpt-6-sol
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where GPT-6 Sol leads 59.6 to 43.4.
- GPT-6 Sol is cheaper at $2 / $10 per million input/output tokens, against $15 / $120 for GPT-5 Pro.
- GPT-6 Sol accepts more context: 1.05M tokens versus 400K.

## Snapshot

| | GPT-5 Pro | GPT-6 Sol |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Noometry Index | 46.2 | 49.2 |
| Rank | 58 | 46 |
| Context | 400K | 1.05M |
| Input $/M | $15 | $2 |
| Output $/M | $120 | $10 |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-5 Pro: 43.4 (#77)
- GPT-6 Sol: 59.6 (#11)

| Benchmark | GPT-5 Pro | GPT-6 Sol |
|---|---|---|
| DeepSWE | — | 68.8% |
| FrontierCode | — | 49.3% |
| LMArena WebDev | — | 1692 |
| WeirdML | 60.4% | — |
| LMArena Coding | — | 1453 |
| AlgoTune | 1.31 | — |

## Agentic & Tool Use

- GPT-5 Pro: —
- GPT-6 Sol: 33.5 (#49)

| Benchmark | GPT-5 Pro | GPT-6 Sol |
|---|---|---|
| GDP.pdf | — | 28% |

## Reasoning

- GPT-5 Pro: 39.2 (#52)
- GPT-6 Sol: 49.3 (#34)

| Benchmark | GPT-5 Pro | GPT-6 Sol |
|---|---|---|
| ARC-AGI-2 | 18.3% | — |
| SimpleBench | 61.6% | — |
| Kagi LLM Benchmark | 76.8% | — |
| NYT Connections (extended) | — | 90.1% |
| ARC-AGI-1 | 70.2% | — |
| EnigmaEval | 18.8% | — |
| EBR-Bench | — | 53.3% |
| LMArena Hard Prompts | — | 1420 |
| Epoch Capabilities Index | 150.26 | — |

## Math

- GPT-5 Pro: 48.0 (#53)
- GPT-6 Sol: 35.8 (#135)

| Benchmark | GPT-5 Pro | GPT-6 Sol |
|---|---|---|
| FrontierMath (Tiers 1-3) | 55.8% | — |
| FrontierMath Tier 4 | 19.5% | — |
| LMArena Math | — | 1404 |
| FrontierMath Tier 4 (v1) | 14.6% | — |

## Knowledge

- GPT-5 Pro: 56.2 (#39)
- GPT-6 Sol: 43.0 (#87)

| Benchmark | GPT-5 Pro | GPT-6 Sol |
|---|---|---|
| Humanity's Last Exam | 31.6% | — |
| Vectara Hallucination Rate | — | 6.5% |
| LMArena Expert | — | 1449 |

## Multimodal

- GPT-5 Pro: —
- GPT-6 Sol: 47.6 (#9)

| Benchmark | GPT-5 Pro | GPT-6 Sol |
|---|---|---|
| Furniture Assembly | — | 58.3% |

## Multilingual

- GPT-5 Pro: —
- GPT-6 Sol: 51.0 (#113)

| Benchmark | GPT-5 Pro | GPT-6 Sol |
|---|---|---|
| LMArena Non-English | — | 1389 |
| LMArena Chinese | — | 1416 |
| LMArena Russian | — | 1407 |
| LMArena Spanish | — | 1377 |

## Instruction Following

- GPT-5 Pro: —
- GPT-6 Sol: 74.4 (#97)

| Benchmark | GPT-5 Pro | GPT-6 Sol |
|---|---|---|
| LMArena Instruction Following | — | 1406 |

## Long Context

- GPT-5 Pro: —
- GPT-6 Sol: 43.2 (#100)

| Benchmark | GPT-5 Pro | GPT-6 Sol |
|---|---|---|
| LMArena Longer Query | — | 1415 |

## Writing & Preference

- GPT-5 Pro: —
- GPT-6 Sol: 72.3 (#15)

| Benchmark | GPT-5 Pro | GPT-6 Sol |
|---|---|---|
| LMArena Text | — | 1396 |
| LMArena Creative Writing | — | 1392 |
| EQ-Bench Creative Writing | — | 2125 |
| LMArena Multi-Turn | — | 1405 |

## FAQ

### Is GPT-5 Pro better than GPT-6 Sol?

GPT-6 Sol is the stronger model overall, scoring 49.2 to 46.2 on the Noometry Index.

### Which is cheaper, GPT-5 Pro or GPT-6 Sol?

GPT-6 Sol is cheaper. It lists at $2 per million input tokens and $10 per million output tokens; GPT-5 Pro lists at $15 and $120.

### Is GPT-5 Pro or GPT-6 Sol better for coding?

GPT-6 Sol scores higher on coding benchmarks: 59.6 versus 43.4 in the Noometry coding category.

### Which has the bigger context window?

GPT-6 Sol does, with 1.05M tokens against 400K.

### How many benchmarks do GPT-5 Pro and GPT-6 Sol share?

0 benchmarks have published results for both models. GPT-5 Pro has 12 scored results on Noometry and GPT-6 Sol has 22.