# GPT-6.1 Sol vs Kimi K2.7 Code

> GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 43.3 on the Noometry Index. Kimi K2.7 Code costs 2.3× less per token, which makes it the better buy when GPT-6.1 Sol's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/gpt-6-1-sol-vs-kimi-k2-7-code
- Last updated: 2026-10-11
- Shared benchmarks: 13

## Summary

- They share 13 benchmarks with published results for both. GPT-6.1 Sol scores higher in 5 categories and Kimi K2.7 Code in 0 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-6.1 Sol leads 81.9 to 39.0.
- The biggest single-benchmark swing is FrontierMath Tier 4: 100% for GPT-6.1 Sol and 12.2% for Kimi K2.7 Code.
- Kimi K2.7 Code is cheaper at $0.95 / $4 per million input/output tokens, against $2 / $10 for GPT-6.1 Sol.
- GPT-6.1 Sol accepts more context: 1.05M tokens versus 262K.
- Kimi K2.7 Code has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-6.1 Sol | Kimi K2.7 Code |
|---|---|---|
| Provider | OpenAI | Moonshot AI |
| Noometry Index | 65.6 | 43.3 |
| Rank | 6 | 94 |
| Context | 1.05M | 262K |
| Input $/M | $2 | $0.95 |
| Output $/M | $10 | $4 |
| Weights | Proprietary | Open |

## Coding

- GPT-6.1 Sol: 63.2 (#8)
- Kimi K2.7 Code: 42.9 (#95)

| Benchmark | GPT-6.1 Sol | Kimi K2.7 Code |
|---|---|---|
| DeepSWE | 75.2% | 30.5% |
| FrontierCode | 50.2% | 30.1% |
| LMArena WebDev | 1755 | 1473 |
| SciCode | 55.8% | 47.5% |
| WeirdML | — | 54.1% |
| LMArena Coding | 1487 | — |
| ALE-Bench | — | 886.23 |

## Agentic & Tool Use

- GPT-6.1 Sol: 39.6 (#26)
- Kimi K2.7 Code: 24.0 (#122)

| Benchmark | GPT-6.1 Sol | Kimi K2.7 Code |
|---|---|---|
| APEX-Agents | 60% | 37.6% |
| GBAEval | — | 0.9% |
| GDP.pdf | 32% | — |
| Vending-Bench 2 | — | 5,083 |

## Reasoning

- GPT-6.1 Sol: 81.9 (#2)
- Kimi K2.7 Code: 39.0 (#61)

| Benchmark | GPT-6.1 Sol | Kimi K2.7 Code |
|---|---|---|
| CritPt | 31.7% | 10% |
| Chess Puzzles | 61% | 21% |
| Epoch Capabilities Index | 166.09 | 149.97 |
| ARC-AGI-2 | 94.2% | — |
| SimpleBench | — | 57.9% |
| NYT Connections (extended) | 95.5% | — |
| ARC-AGI-1 | 98.5% | — |
| EBR-Bench | 54.3% | — |
| LMArena Hard Prompts | 1466 | — |
| Mystery Game Puzzles | 80% | — |
| Surface Evolver Bench | — | 48.8% |

## Math

- GPT-6.1 Sol: 93.7 (#1)
- Kimi K2.7 Code: 52.9 (#48)

| Benchmark | GPT-6.1 Sol | Kimi K2.7 Code |
|---|---|---|
| FrontierMath (Tiers 1-3) | 93.7% | 54% |
| FrontierMath Tier 4 | 100% | 12.2% |
| OTIS Mock AIME 2024-2025 | 100% | 95.6% |
| ProofBench | 99% | — |
| LMArena Math | 1464 | — |

## Knowledge

- GPT-6.1 Sol: 71.8 (#4)
- Kimi K2.7 Code: 53.5 (#57)

| Benchmark | GPT-6.1 Sol | Kimi K2.7 Code |
|---|---|---|
| GPQA Diamond | 95.4% | 87.9% |
| SimpleQA Verified | 73.9% | 36.5% |
| LMArena Expert | 1502 | — |

## Multimodal

- GPT-6.1 Sol: 52.7 (#5)
- Kimi K2.7 Code: —

| Benchmark | GPT-6.1 Sol | Kimi K2.7 Code |
|---|---|---|
| LMArena Vision | 1288 | — |
| Furniture Assembly | 80% | — |

## Multilingual

- GPT-6.1 Sol: 54.3 (#46)
- Kimi K2.7 Code: —

| Benchmark | GPT-6.1 Sol | Kimi K2.7 Code |
|---|---|---|
| LMArena Non-English | 1438 | — |
| LMArena Chinese | 1477 | — |
| LMArena Russian | 1455 | — |

## Instruction Following

- GPT-6.1 Sol: 77.0 (#29)
- Kimi K2.7 Code: —

| Benchmark | GPT-6.1 Sol | Kimi K2.7 Code |
|---|---|---|
| LMArena Instruction Following | 1468 | — |

## Long Context

- GPT-6.1 Sol: 44.9 (#54)
- Kimi K2.7 Code: —

| Benchmark | GPT-6.1 Sol | Kimi K2.7 Code |
|---|---|---|
| LMArena Longer Query | 1465 | — |

## Writing & Preference

- GPT-6.1 Sol: 63.6 (#63)
- Kimi K2.7 Code: —

| Benchmark | GPT-6.1 Sol | Kimi K2.7 Code |
|---|---|---|
| LMArena Text | 1447 | — |
| LMArena Creative Writing | 1432 | — |
| LMArena Multi-Turn | 1449 | — |

## FAQ

### Is GPT-6.1 Sol better than Kimi K2.7 Code?

GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 43.3 on the Noometry Index. Kimi K2.7 Code costs 2.3× less per token, which makes it the better buy when GPT-6.1 Sol's lead doesn't matter for your workload.

### Which is cheaper, GPT-6.1 Sol or Kimi K2.7 Code?

Kimi K2.7 Code is cheaper. It lists at $0.95 per million input tokens and $4 per million output tokens; GPT-6.1 Sol lists at $2 and $10.

### Is GPT-6.1 Sol or Kimi K2.7 Code better for coding?

GPT-6.1 Sol scores higher on coding benchmarks: 63.2 versus 42.9 in the Noometry coding category.

### Which has the bigger context window?

GPT-6.1 Sol does, with 1.05M tokens against 262K.

### How many benchmarks do GPT-6.1 Sol and Kimi K2.7 Code share?

13 benchmarks have published results for both models. GPT-6.1 Sol has 34 scored results on Noometry and Kimi K2.7 Code has 19.