# Gemini 1.5 Flash (May 2024) vs Yi-Lightning

> Yi-Lightning is the stronger model overall, scoring 36.5 to 32.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-vs-yi-lightning
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Gemini 1.5 Flash (May 2024) scores higher in 2 categories and Yi-Lightning in 6 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in math, where Yi-Lightning leads 33.5 to 20.8.

## Snapshot

| | Gemini 1.5 Flash (May 2024) | Yi-Lightning |
|---|---|---|
| Provider | Google | 01.AI |
| Noometry Index | 32.9 | 36.5 |
| Rank | 240 | 206 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.5 Flash (May 2024): 33.9 (#233)
- Yi-Lightning: 27.0 (#315)

| Benchmark | Gemini 1.5 Flash (May 2024) | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1262 | 1313 |
| Aider Polyglot | — | 12.9% |
| WeirdML | 24.9% | — |
| BigCodeBench Instruct | 43.5% | — |
| BigCodeBench Complete | 55.1% | — |
| HumanEval+ | 75.6% | — |
| MBPP+ | 67.5% | — |

## Agentic & Tool Use

- Gemini 1.5 Flash (May 2024): 26.3 (#97)
- Yi-Lightning: —

| Benchmark | Gemini 1.5 Flash (May 2024) | Yi-Lightning |
|---|---|---|
| BALROG | 14.6% | — |

## Reasoning

- Gemini 1.5 Flash (May 2024): 20.8 (#212)
- Yi-Lightning: 24.9 (#137)

| Benchmark | Gemini 1.5 Flash (May 2024) | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1257 | 1302 |
| DTBench | 53.8% | — |
| Epoch Capabilities Index | 129.37 | — |
| ForecastBench | 53.9 | — |
| PIQA | 87.5% | — |

## Math

- Gemini 1.5 Flash (May 2024): 20.8 (#274)
- Yi-Lightning: 33.5 (#173)

| Benchmark | Gemini 1.5 Flash (May 2024) | Yi-Lightning |
|---|---|---|
| LMArena Math | 1269 | 1300 |
| OTIS Mock AIME 2024-2025 | 16.3% | — |
| Omni-MATH | 30.4% | — |
| MATH Level 5 | 61.9% | — |
| FrontierMath (Feb 2025 set) | 0% | — |
| GSM8K | 82.4% | — |

## Knowledge

- Gemini 1.5 Flash (May 2024): 26.2 (#253)
- Yi-Lightning: 34.8 (#182)

| Benchmark | Gemini 1.5 Flash (May 2024) | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1233 | 1286 |
| GPQA Diamond | 47.3% | — |
| MMLU-Pro | 67.8% | — |
| GPQA (HELM) | 43.7% | — |
| BoolQ | 85.8% | — |
| MMLU | 77.9% | — |

## Multimodal

- Gemini 1.5 Flash (May 2024): 35.3 (#76)
- Yi-Lightning: —

| Benchmark | Gemini 1.5 Flash (May 2024) | Yi-Lightning |
|---|---|---|
| LMArena Vision | 1141 | — |
| Video-MME | 70.3% | — |
| GeoBench | 76% | — |

## Multilingual

- Gemini 1.5 Flash (May 2024): 43.1 (#184)
- Yi-Lightning: 42.4 (#191)

| Benchmark | Gemini 1.5 Flash (May 2024) | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1278 | 1269 |
| LMArena Chinese | 1295 | 1320 |
| LMArena French | 1257 | 1304 |
| LMArena German | 1262 | 1267 |
| LMArena Japanese | 1252 | 1228 |
| LMArena Korean | 1220 | 1192 |
| LMArena Russian | 1288 | 1255 |
| LMArena Spanish | 1242 | 1315 |

## Instruction Following

- Gemini 1.5 Flash (May 2024): 67.0 (#199)
- Yi-Lightning: 67.6 (#191)

| Benchmark | Gemini 1.5 Flash (May 2024) | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1258 | 1278 |
| IFEval | 83.1% | — |

## Long Context

- Gemini 1.5 Flash (May 2024): 39.0 (#182)
- Yi-Lightning: 39.4 (#176)

| Benchmark | Gemini 1.5 Flash (May 2024) | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1284 | 1297 |

## Writing & Preference

- Gemini 1.5 Flash (May 2024): 48.9 (#190)
- Yi-Lightning: 50.4 (#178)

| Benchmark | Gemini 1.5 Flash (May 2024) | Yi-Lightning |
|---|---|---|
| LMArena Text | 1287 | 1302 |
| LMArena Creative Writing | 1285 | 1280 |
| LMArena Multi-Turn | 1253 | 1311 |
| WildBench | 79.2% | — |

## FAQ

### Is Gemini 1.5 Flash (May 2024) better than Yi-Lightning?

Yi-Lightning is the stronger model overall, scoring 36.5 to 32.9 on the Noometry Index.

### Is Gemini 1.5 Flash (May 2024) or Yi-Lightning better for coding?

Gemini 1.5 Flash (May 2024) scores higher on coding benchmarks: 33.9 versus 27.0 in the Noometry coding category.

### How many benchmarks do Gemini 1.5 Flash (May 2024) and Yi-Lightning share?

17 benchmarks have published results for both models. Gemini 1.5 Flash (May 2024) has 42 scored results on Noometry and Yi-Lightning has 18.