# GPT-4.5 vs Kimi K2.7 Code

> Kimi K2.7 Code is the stronger model overall, scoring 43.0 to 36.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-4-5-vs-kimi-k2-7-code
- Last updated: 2026-10-10
- Shared benchmarks: 5

## Summary

- They share 5 benchmarks with published results for both. GPT-4.5 scores higher in 1 category and Kimi K2.7 Code in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Kimi K2.7 Code leads 38.2 to 14.1.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 37.8% for GPT-4.5 and 95.6% for Kimi K2.7 Code.
- Kimi K2.7 Code has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-4.5 | Kimi K2.7 Code |
|---|---|---|
| Provider | OpenAI | Moonshot AI |
| Noometry Index | 36.9 | 43.0 |
| Rank | 200 | 90 |
| Context | — | 262K |
| Input $/M | — | $0.95 |
| Output $/M | — | $4 |
| Weights | Proprietary | Open |

## Coding

- GPT-4.5: 41.8 (#102)
- Kimi K2.7 Code: 42.4 (#92)

| Benchmark | GPT-4.5 | Kimi K2.7 Code |
|---|---|---|
| WeirdML | 39.4% | 54.1% |
| DeepSWE | — | 30.5% |
| FrontierCode | — | 30.1% |
| Aider Polyglot | 44.9% | — |
| LMArena WebDev | — | 1473 |
| SciCode | — | 47.5% |
| LiveBench Coding | 75.2% | — |
| LMArena Coding | 1397 | — |
| ALE-Bench | — | 886.23 |

## Agentic & Tool Use

- GPT-4.5: 27.6 (#92)
- Kimi K2.7 Code: 23.9 (#115)

| Benchmark | GPT-4.5 | Kimi K2.7 Code |
|---|---|---|
| APEX-Agents | — | 37.6% |
| Cybench | 17.5% | — |
| GBAEval | — | 0.9% |
| Vending-Bench 2 | — | 5,083 |

## Reasoning

- GPT-4.5: 14.1 (#320)
- Kimi K2.7 Code: 38.2 (#56)

| Benchmark | GPT-4.5 | Kimi K2.7 Code |
|---|---|---|
| SimpleBench | 34.5% | 57.9% |
| Epoch Capabilities Index | 136.74 | 150.01 |
| ARC-AGI-2 | 0.8% | — |
| ARC-AGI-1 | 10.3% | — |
| CritPt | — | 10% |
| Chess Puzzles | — | 21% |
| EnigmaEval | 3.2% | — |
| LiveBench Reasoning | 71.1% | — |
| LMArena Hard Prompts | 1404 | — |
| LiveBench Data Analysis | 64.3% | — |
| Surface Evolver Bench | — | 48.8% |
| ForecastBench | 61.7 | — |
| LiveBench | 69% | — |

## Math

- GPT-4.5: 31.0 (#200)
- Kimi K2.7 Code: 52.6 (#39)

| Benchmark | GPT-4.5 | Kimi K2.7 Code |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 37.8% | 95.6% |
| FrontierMath (Tiers 1-3) | — | 54% |
| FrontierMath Tier 4 | — | 12.2% |
| LiveBench Math | 69.3% | — |
| LMArena Math | 1412 | — |
| MATH Level 5 | 78.6% | — |

## Knowledge

- GPT-4.5: 32.4 (#205)
- Kimi K2.7 Code: 53.6 (#51)

| Benchmark | GPT-4.5 | Kimi K2.7 Code |
|---|---|---|
| GPQA Diamond | 68.7% | 87.9% |
| Humanity's Last Exam | 5.4% | — |
| SimpleQA Verified | — | 36.5% |
| Confabulations | 13.6% | — |
| LMArena Expert | 1394 | — |

## Multimodal

- GPT-4.5: 37.0 (#68)
- Kimi K2.7 Code: —

| Benchmark | GPT-4.5 | Kimi K2.7 Code |
|---|---|---|
| LMArena Vision | 1195 | — |
| VPCT | 45% | — |

## Multilingual

- GPT-4.5: 52.7 (#78)
- Kimi K2.7 Code: —

| Benchmark | GPT-4.5 | Kimi K2.7 Code |
|---|---|---|
| LMArena Non-English | 1413 | — |
| LMArena Chinese | 1421 | — |
| LMArena French | 1417 | — |
| LMArena German | 1457 | — |
| LMArena Japanese | 1416 | — |
| LMArena Korean | 1392 | — |
| LMArena Russian | 1419 | — |

## Instruction Following

- GPT-4.5: 72.8 (#129)
- Kimi K2.7 Code: —

| Benchmark | GPT-4.5 | Kimi K2.7 Code |
|---|---|---|
| LiveBench Instruction Following | 72.3% | — |
| LMArena Instruction Following | 1404 | — |

## Long Context

- GPT-4.5: 40.4 (#150)
- Kimi K2.7 Code: —

| Benchmark | GPT-4.5 | Kimi K2.7 Code |
|---|---|---|
| Fiction.LiveBench | 63.9% | — |
| LMArena Longer Query | 1406 | — |

## Writing & Preference

- GPT-4.5: 57.1 (#129)
- Kimi K2.7 Code: —

| Benchmark | GPT-4.5 | Kimi K2.7 Code |
|---|---|---|
| LMArena Text | 1417 | — |
| LMArena Creative Writing | 1394 | — |
| Short-Story Creative Writing | 75.6% | — |
| EQ-Bench Creative Writing | 1258 | — |
| LMArena Multi-Turn | 1444 | — |
| LiveBench Language | 61.5% | — |

## FAQ

### Is GPT-4.5 better than Kimi K2.7 Code?

Kimi K2.7 Code is the stronger model overall, scoring 43.0 to 36.9 on the Noometry Index.

### Is GPT-4.5 or Kimi K2.7 Code better for coding?

They score almost the same on coding (41.8 vs 42.4); test both on your own repository before choosing.

### How many benchmarks do GPT-4.5 and Kimi K2.7 Code share?

5 benchmarks have published results for both models. GPT-4.5 has 42 scored results on Noometry and Kimi K2.7 Code has 19.