# GPT-6.1 Sol vs GPT-6 Sol

> GPT-6 Sol has enough public results to be ranked (#46); GPT-6.1 Sol does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/gpt-6-1-sol-vs-gpt-6-sol
- Last updated: 2026-10-10
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. GPT-6.1 Sol scores higher in 1 category and GPT-6 Sol in 1 category; one gap is clear of the uncertainty.
- The widest gap is in coding, where GPT-6 Sol leads 59.6 to 51.4.
- The biggest single-benchmark swing is DeepSWE: 75.2% for GPT-6.1 Sol and 68.8% for GPT-6 Sol.
- Both cost about the same: $2 input and $10 output per million tokens.

## Snapshot

| | GPT-6.1 Sol | GPT-6 Sol |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Noometry Index | 42.1 | 49.2 |
| Rank | — | 46 |
| Context | 1.05M | 1.05M |
| Input $/M | $2 | $2 |
| Output $/M | $10 | $10 |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-6.1 Sol: 51.4
- GPT-6 Sol: 59.6 (#11)

| Benchmark | GPT-6.1 Sol | GPT-6 Sol |
|---|---|---|
| DeepSWE | 75.2% | 68.8% |
| FrontierCode | — | 49.3% |
| LMArena WebDev | — | 1692 |
| LMArena Coding | — | 1453 |

## Agentic & Tool Use

- GPT-6.1 Sol: 34.3
- GPT-6 Sol: 33.5 (#49)

| Benchmark | GPT-6.1 Sol | GPT-6 Sol |
|---|---|---|
| GDP.pdf | 32% | 28% |

## Reasoning

- GPT-6.1 Sol: —
- GPT-6 Sol: 49.3 (#34)

| Benchmark | GPT-6.1 Sol | GPT-6 Sol |
|---|---|---|
| NYT Connections (extended) | — | 90.1% |
| EBR-Bench | — | 53.3% |
| LMArena Hard Prompts | — | 1420 |

## Math

- GPT-6.1 Sol: —
- GPT-6 Sol: 35.8 (#135)

| Benchmark | GPT-6.1 Sol | GPT-6 Sol |
|---|---|---|
| LMArena Math | — | 1404 |

## Knowledge

- GPT-6.1 Sol: —
- GPT-6 Sol: 43.0 (#87)

| Benchmark | GPT-6.1 Sol | GPT-6 Sol |
|---|---|---|
| Vectara Hallucination Rate | — | 6.5% |
| LMArena Expert | — | 1449 |

## Multimodal

- GPT-6.1 Sol: —
- GPT-6 Sol: 47.6 (#9)

| Benchmark | GPT-6.1 Sol | GPT-6 Sol |
|---|---|---|
| Furniture Assembly | — | 58.3% |

## Multilingual

- GPT-6.1 Sol: —
- GPT-6 Sol: 51.0 (#113)

| Benchmark | GPT-6.1 Sol | GPT-6 Sol |
|---|---|---|
| LMArena Non-English | — | 1389 |
| LMArena Chinese | — | 1416 |
| LMArena Russian | — | 1407 |
| LMArena Spanish | — | 1377 |

## Instruction Following

- GPT-6.1 Sol: —
- GPT-6 Sol: 74.4 (#97)

| Benchmark | GPT-6.1 Sol | GPT-6 Sol |
|---|---|---|
| LMArena Instruction Following | — | 1406 |

## Long Context

- GPT-6.1 Sol: —
- GPT-6 Sol: 43.2 (#100)

| Benchmark | GPT-6.1 Sol | GPT-6 Sol |
|---|---|---|
| LMArena Longer Query | — | 1415 |

## Writing & Preference

- GPT-6.1 Sol: —
- GPT-6 Sol: 72.3 (#15)

| Benchmark | GPT-6.1 Sol | GPT-6 Sol |
|---|---|---|
| LMArena Text | — | 1396 |
| LMArena Creative Writing | — | 1392 |
| EQ-Bench Creative Writing | — | 2125 |
| LMArena Multi-Turn | — | 1405 |

## FAQ

### Is GPT-6.1 Sol better than GPT-6 Sol?

GPT-6 Sol has enough public results to be ranked (#46); GPT-6.1 Sol does not yet, so treat this comparison as directional.

### Which is cheaper, GPT-6.1 Sol or GPT-6 Sol?

GPT-6 Sol is cheaper. It lists at $2 per million input tokens and $10 per million output tokens; GPT-6.1 Sol lists at $2 and $10.

### Is GPT-6.1 Sol or GPT-6 Sol better for coding?

GPT-6 Sol scores higher on coding benchmarks: 59.6 versus 51.4 in the Noometry coding category.

### Which has the bigger context window?

Both accept 1.05M tokens.

### How many benchmarks do GPT-6.1 Sol and GPT-6 Sol share?

2 benchmarks have published results for both models. GPT-6.1 Sol has 2 scored results on Noometry and GPT-6 Sol has 22.