# Gemini 1.5 Flash (May 2024) vs Gemini 1.5 Flash 8B

> Gemini 1.5 Flash (May 2024) is the stronger model overall, scoring 33.2 to 29.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-vs-gemini-1-5-flash-8b
- Last updated: 2026-10-12
- Shared benchmarks: 21

## Summary

- They share 21 benchmarks with published results for both. Gemini 1.5 Flash (May 2024) scores higher in 8 categories and Gemini 1.5 Flash 8B in 1 category; 9 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Gemini 1.5 Flash (May 2024) leads 26.2 to 16.0.
- The biggest single-benchmark swing is GPQA Diamond: 47.3% for Gemini 1.5 Flash (May 2024) and 33% for Gemini 1.5 Flash 8B.

## Snapshot

| | Gemini 1.5 Flash (May 2024) | Gemini 1.5 Flash 8B |
|---|---|---|
| Provider | Google | Google |
| Noometry Index | 33.2 | 29.9 |
| Rank | 246 | 301 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.5 Flash (May 2024): 34.4 (#236)
- Gemini 1.5 Flash 8B: 35.5 (#225)

| Benchmark | Gemini 1.5 Flash (May 2024) | Gemini 1.5 Flash 8B |
|---|---|---|
| LMArena Coding | 1261 | 1218 |
| 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): 26.6 (#102)
- Gemini 1.5 Flash 8B: —

| Benchmark | Gemini 1.5 Flash (May 2024) | Gemini 1.5 Flash 8B |
|---|---|---|
| BALROG | 14.6% | — |

## Reasoning

- Gemini 1.5 Flash (May 2024): 21.7 (#215)
- Gemini 1.5 Flash 8B: 20.0 (#244)

| Benchmark | Gemini 1.5 Flash (May 2024) | Gemini 1.5 Flash 8B |
|---|---|---|
| LMArena Hard Prompts | 1257 | 1209 |
| DTBench | 53.8% | 50% |
| Epoch Capabilities Index | 129.36 | — |
| ForecastBench | 53.9 | — |
| PIQA | 87.5% | — |

## Math

- Gemini 1.5 Flash (May 2024): 22.1 (#281)
- Gemini 1.5 Flash 8B: 14.2 (#302)

| Benchmark | Gemini 1.5 Flash (May 2024) | Gemini 1.5 Flash 8B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 16.3% | 4.6% |
| LMArena Math | 1269 | 1207 |
| 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 (#260)
- Gemini 1.5 Flash 8B: 16.0 (#289)

| Benchmark | Gemini 1.5 Flash (May 2024) | Gemini 1.5 Flash 8B |
|---|---|---|
| GPQA Diamond | 47.3% | 33% |
| LMArena Expert | 1233 | 1185 |
| MMLU-Pro | 67.8% | — |
| GPQA (HELM) | 43.7% | — |
| BoolQ | 85.8% | — |
| MMLU | 77.9% | — |

## Multimodal

- Gemini 1.5 Flash (May 2024): 36.0 (#81)
- Gemini 1.5 Flash 8B: 28.2 (#115)

| Benchmark | Gemini 1.5 Flash (May 2024) | Gemini 1.5 Flash 8B |
|---|---|---|
| LMArena Vision | 1141 | 1044 |
| Video-MME | 70.3% | — |
| GeoBench | 76% | — |

## Multilingual

- Gemini 1.5 Flash (May 2024): 42.9 (#189)
- Gemini 1.5 Flash 8B: 38.5 (#229)

| Benchmark | Gemini 1.5 Flash (May 2024) | Gemini 1.5 Flash 8B |
|---|---|---|
| LMArena Non-English | 1278 | 1215 |
| LMArena Chinese | 1295 | 1231 |
| LMArena French | 1258 | 1234 |
| LMArena German | 1262 | 1206 |
| LMArena Japanese | 1252 | 1150 |
| LMArena Korean | 1221 | 1140 |
| LMArena Russian | 1288 | 1236 |
| LMArena Spanish | 1243 | 1212 |

## Instruction Following

- Gemini 1.5 Flash (May 2024): 66.8 (#205)
- Gemini 1.5 Flash 8B: 62.8 (#236)

| Benchmark | Gemini 1.5 Flash (May 2024) | Gemini 1.5 Flash 8B |
|---|---|---|
| LMArena Instruction Following | 1258 | 1199 |
| IFEval | 83.1% | — |

## Long Context

- Gemini 1.5 Flash (May 2024): 39.0 (#187)
- Gemini 1.5 Flash 8B: 37.0 (#225)

| Benchmark | Gemini 1.5 Flash (May 2024) | Gemini 1.5 Flash 8B |
|---|---|---|
| LMArena Longer Query | 1284 | 1219 |

## Writing & Preference

- Gemini 1.5 Flash (May 2024): 48.7 (#196)
- Gemini 1.5 Flash 8B: 42.8 (#232)

| Benchmark | Gemini 1.5 Flash (May 2024) | Gemini 1.5 Flash 8B |
|---|---|---|
| LMArena Text | 1287 | 1226 |
| LMArena Creative Writing | 1285 | 1218 |
| LMArena Multi-Turn | 1253 | 1185 |
| WildBench | 79.2% | — |

## FAQ

### Is Gemini 1.5 Flash (May 2024) better than Gemini 1.5 Flash 8B?

Gemini 1.5 Flash (May 2024) is the stronger model overall, scoring 33.2 to 29.9 on the Noometry Index.

### Is Gemini 1.5 Flash (May 2024) or Gemini 1.5 Flash 8B better for coding?

Gemini 1.5 Flash 8B scores higher on coding benchmarks: 35.5 versus 34.4 in the Noometry coding category.

### How many benchmarks do Gemini 1.5 Flash (May 2024) and Gemini 1.5 Flash 8B share?

21 benchmarks have published results for both models. Gemini 1.5 Flash (May 2024) has 42 scored results on Noometry and Gemini 1.5 Flash 8B has 21.