# Gemini 2.5 Pro vs Yi-Lightning

> Gemini 2.5 Pro is the stronger model overall, scoring 45.0 to 37.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-2-5-pro-vs-yi-lightning
- 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 7 categories and Yi-Lightning in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Gemini 2.5 Pro leads 56.0 to 35.4.
- The biggest single-benchmark swing is Aider Polyglot: 83.1% for Gemini 2.5 Pro and 12.9% for Yi-Lightning.

## Snapshot

| | Gemini 2.5 Pro | Yi-Lightning |
|---|---|---|
| Provider | Google | 01.AI |
| Noometry Index | 45.0 | 37.1 |
| Rank | 75 | 209 |
| Context | 1.05M | — |
| Input $/M | $1.25 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 2.5 Pro: 42.4 (#101)
- Yi-Lightning: 27.4 (#320)

| Benchmark | Gemini 2.5 Pro | Yi-Lightning |
|---|---|---|
| Aider Polyglot | 83.1% | 12.9% |
| LMArena Coding | 1452 | 1312 |
| SWE-bench Verified | 57.6% | — |
| SWE-bench Verified (bash only) | 53.6% | — |
| LMArena WebDev | 1227 | — |
| 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)
- Yi-Lightning: —

| Benchmark | Gemini 2.5 Pro | Yi-Lightning |
|---|---|---|
| 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)
- Yi-Lightning: 25.9 (#139)

| Benchmark | Gemini 2.5 Pro | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1455 | 1302 |
| 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)
- Yi-Lightning: 36.2 (#172)

| Benchmark | Gemini 2.5 Pro | Yi-Lightning |
|---|---|---|
| LMArena Math | 1450 | 1300 |
| 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)
- Yi-Lightning: 35.4 (#185)

| Benchmark | Gemini 2.5 Pro | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1452 | 1286 |
| 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)
- Yi-Lightning: —

| Benchmark | Gemini 2.5 Pro | Yi-Lightning |
|---|---|---|
| LMArena Vision | 1263 | — |
| GeoBench | 86% | — |
| VPCT | 48% | — |
| LMArena Document | 1421 | — |
| SpatialViz-Bench | 44.7% | — |

## Multilingual

- Gemini 2.5 Pro: 55.3 (#31)
- Yi-Lightning: 42.2 (#196)

| Benchmark | Gemini 2.5 Pro | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1451 | 1269 |
| LMArena Chinese | 1507 | 1320 |
| LMArena French | 1472 | 1305 |
| LMArena German | 1487 | 1267 |
| LMArena Japanese | 1461 | 1228 |
| LMArena Korean | 1434 | 1192 |
| LMArena Russian | 1461 | 1255 |
| LMArena Spanish | 1473 | 1315 |

## Instruction Following

- Gemini 2.5 Pro: 75.0 (#75)
- Yi-Lightning: 67.4 (#196)

| Benchmark | Gemini 2.5 Pro | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1437 | 1278 |
| LiveBench Instruction Following | 80.6% | — |
| IFEval | 84% | — |

## Long Context

- Gemini 2.5 Pro: 59.8 (#5)
- Yi-Lightning: 39.4 (#181)

| Benchmark | Gemini 2.5 Pro | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1449 | 1297 |
| Fiction.LiveBench | 91.7% | — |

## Writing & Preference

- Gemini 2.5 Pro: 63.7 (#62)
- Yi-Lightning: 50.2 (#184)

| Benchmark | Gemini 2.5 Pro | Yi-Lightning |
|---|---|---|
| LMArena Text | 1458 | 1302 |
| LMArena Creative Writing | 1454 | 1280 |
| LMArena Multi-Turn | 1453 | 1311 |
| 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 Yi-Lightning?

Gemini 2.5 Pro is the stronger model overall, scoring 45.0 to 37.1 on the Noometry Index.

### Is Gemini 2.5 Pro or Yi-Lightning better for coding?

Gemini 2.5 Pro scores higher on coding benchmarks: 42.4 versus 27.4 in the Noometry coding category.

### How many benchmarks do Gemini 2.5 Pro and Yi-Lightning share?

18 benchmarks have published results for both models. Gemini 2.5 Pro has 78 scored results on Noometry and Yi-Lightning has 18.