# Gemini 2.5 Pro vs Kimi K2.5 Instant

> Gemini 2.5 Pro is the stronger model overall, scoring 45.0 to 43.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-2-5-pro-vs-kimi-k2-5-instant
- Last updated: 2026-10-12
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. Gemini 2.5 Pro scores higher in 5 categories and Kimi K2.5 Instant in 4 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in long context, where Gemini 2.5 Pro leads 59.8 to 43.9.
- Kimi K2.5 Instant has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| Provider | Google | Moonshot AI |
| Noometry Index | 45.0 | 43.6 |
| Rank | 75 | 89 |
| Context | 1.05M | — |
| Input $/M | $1.25 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Open |

## Coding

- Gemini 2.5 Pro: 42.4 (#101)
- Kimi K2.5 Instant: 42.6 (#97)

| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena WebDev | 1227 | 1404 |
| LMArena Coding | 1452 | 1484 |
| SWE-bench Verified | 57.6% | — |
| SWE-bench Verified (bash only) | 53.6% | — |
| Aider Polyglot | 83.1% | — |
| SciCode | 42.8% | — |
| GSO | 3.9% | — |
| WeirdML | 54% | — |
| LiveBench Coding | 85.9% | — |
| CadEval | 64% | — |
| ALE-Bench | 785.52 | — |
| AlgoTune | 1.51 | — |

## Agentic & Tool Use

- Gemini 2.5 Pro: 29.2 (#88)
- Kimi K2.5 Instant: —

| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| Terminal-Bench | 32.6% | — |
| GDPval | 23.3% | — |
| Remote Labor Index | 0.8% | — |
| TheAgentCompany | 30.3% | — |
| τ²-bench Banking | 13.7% | — |
| DeepResearch Bench | 42.8% | — |
| BALROG | 43.3% | — |
| LMArena Search | 1142 | — |
| METR Time Horizons | 55.4% | — |
| Vending-Bench 2 | 573.64 | — |

## Reasoning

- Gemini 2.5 Pro: 28.8 (#99)
- Kimi K2.5 Instant: 29.7 (#90)

| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Hard Prompts | 1455 | 1443 |
| ARC-AGI-2 | 4.9% | — |
| SimpleBench | 62.4% | — |
| Kagi LLM Benchmark | 70.3% | — |
| ARC-AGI-1 | 41% | — |
| CritPt | 2% | — |
| Chess Puzzles | 20% | — |
| EnigmaEval | 5.6% | — |
| LiveBench Reasoning | 89.8% | — |
| DTBench | 82.4% | — |
| LiveBench Data Analysis | 79.9% | — |
| LMCA | 34.8% | — |
| Epoch Capabilities Index | 145.32 | — |
| ForecastBench | 61.3 | — |
| LiveBench | 82.3% | — |

## Math

- Gemini 2.5 Pro: 32.5 (#213)
- Kimi K2.5 Instant: 39.4 (#105)

| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Math | 1450 | 1442 |
| FrontierMath (Tiers 1-3) | 24.6% | — |
| FrontierMath Tier 4 | 0% | — |
| OTIS Mock AIME 2024-2025 | 84.7% | — |
| Omni-MATH | 41.6% | — |
| LiveBench Math | 90.2% | — |
| MATH Level 5 | 95.9% | — |
| FrontierMath (Feb 2025 set) | 14.1% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |

## Knowledge

- Gemini 2.5 Pro: 56.0 (#46)
- Kimi K2.5 Instant: 40.2 (#123)

| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Expert | 1452 | 1440 |
| GPQA Diamond | 85.3% | — |
| Humanity's Last Exam | 21.6% | — |
| MMLU-Pro | 86.3% | — |
| Confabulations | 10.6% | — |
| Vectara Hallucination Rate | 7% | — |
| GPQA (HELM) | 74.9% | — |

## Multimodal

- Gemini 2.5 Pro: 45.2 (#18)
- Kimi K2.5 Instant: 40.2 (#50)

| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Vision | 1263 | 1254 |
| GeoBench | 86% | — |
| VPCT | 48% | — |
| LMArena Document | 1421 | — |
| SpatialViz-Bench | 44.7% | — |

## Multilingual

- Gemini 2.5 Pro: 55.3 (#31)
- Kimi K2.5 Instant: 52.0 (#94)

| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Non-English | 1451 | 1406 |
| LMArena Chinese | 1507 | 1449 |
| LMArena French | 1472 | 1403 |
| LMArena German | 1487 | 1413 |
| LMArena Korean | 1434 | 1378 |
| LMArena Russian | 1461 | 1404 |
| LMArena Spanish | 1473 | 1447 |
| LMArena Japanese | 1461 | — |

## Instruction Following

- Gemini 2.5 Pro: 75.0 (#75)
- Kimi K2.5 Instant: 75.3 (#65)

| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Instruction Following | 1437 | 1430 |
| LiveBench Instruction Following | 80.6% | — |
| IFEval | 84% | — |

## Long Context

- Gemini 2.5 Pro: 59.8 (#5)
- Kimi K2.5 Instant: 43.9 (#83)

| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Longer Query | 1449 | 1435 |
| Fiction.LiveBench | 91.7% | — |

## Writing & Preference

- Gemini 2.5 Pro: 63.7 (#62)
- Kimi K2.5 Instant: 60.6 (#95)

| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Text | 1458 | 1420 |
| LMArena Creative Writing | 1454 | 1381 |
| LMArena Multi-Turn | 1453 | 1427 |
| Short-Story Creative Writing | 83.8% | — |
| EQ-Bench Creative Writing | 1421 | — |
| WildBench | 85.7% | — |
| LiveBench Language | 67.8% | — |

## FAQ

### Is Gemini 2.5 Pro better than Kimi K2.5 Instant?

Gemini 2.5 Pro is the stronger model overall, scoring 45.0 to 43.6 on the Noometry Index.

### Is Gemini 2.5 Pro or Kimi K2.5 Instant better for coding?

They score almost the same on coding (42.4 vs 42.6); test both on your own repository before choosing.

### How many benchmarks do Gemini 2.5 Pro and Kimi K2.5 Instant share?

18 benchmarks have published results for both models. Gemini 2.5 Pro has 78 scored results on Noometry and Kimi K2.5 Instant has 18.