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

> Gemini 1.5 Pro (May 2024) is the stronger model overall, scoring 32.1 to 29.9 on the Noometry Index.

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

## Summary

- They share 21 benchmarks with published results for both. Gemini 1.5 Flash 8B scores higher in 2 categories and Gemini 1.5 Pro (May 2024) in 7 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Gemini 1.5 Pro (May 2024) leads 29.4 to 16.0.
- The biggest single-benchmark swing is GPQA Diamond: 33% for Gemini 1.5 Flash 8B and 57.2% for Gemini 1.5 Pro (May 2024).

## Snapshot

| | Gemini 1.5 Flash 8B | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| Provider | Google | Google |
| Noometry Index | 29.9 | 32.1 |
| Rank | 301 | 261 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.5 Flash 8B: 35.5 (#225)
- Gemini 1.5 Pro (May 2024): 34.2 (#241)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| LMArena Coding | 1218 | 1294 |
| WeirdML | — | 22.2% |
| BigCodeBench Instruct | — | 43.8% |
| BigCodeBench Complete | — | 57.5% |
| CadEval | — | 34% |
| HumanEval+ | — | 79.3% |
| MBPP+ | — | 74.6% |

## Agentic & Tool Use

- Gemini 1.5 Flash 8B: —
- Gemini 1.5 Pro (May 2024): 17.9 (#145)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| TheAgentCompany | — | 3.4% |
| Cybench | — | 7.5% |
| BALROG | — | 21% |

## Reasoning

- Gemini 1.5 Flash 8B: 20.0 (#244)
- Gemini 1.5 Pro (May 2024): 12.3 (#338)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| LMArena Hard Prompts | 1209 | 1296 |
| DTBench | 50% | 59% |
| ARC-AGI-2 | — | 0.8% |
| SimpleBench | — | 27.1% |
| BIG-Bench Hard | — | 89.2% |
| Epoch Capabilities Index | — | 131.73 |
| ForecastBench | — | 58.4 |

## Math

- Gemini 1.5 Flash 8B: 14.2 (#302)
- Gemini 1.5 Pro (May 2024): 25.8 (#266)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.6% | 23.1% |
| LMArena Math | 1207 | 1315 |
| Omni-MATH | — | 36.4% |
| MATH Level 5 | — | 70.4% |

## Knowledge

- Gemini 1.5 Flash 8B: 16.0 (#289)
- Gemini 1.5 Pro (May 2024): 29.4 (#239)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| GPQA Diamond | 33% | 57.2% |
| LMArena Expert | 1185 | 1279 |
| Humanity's Last Exam | — | 4.6% |
| MMLU-Pro | — | 73.7% |
| Confabulations | — | 13.5% |
| GPQA (HELM) | — | 53.4% |
| MMLU | — | 86.9% |

## Multimodal

- Gemini 1.5 Flash 8B: 28.2 (#115)
- Gemini 1.5 Pro (May 2024): 36.8 (#77)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| LMArena Vision | 1044 | 1161 |
| Video-MME | — | 75% |

## Multilingual

- Gemini 1.5 Flash 8B: 38.5 (#229)
- Gemini 1.5 Pro (May 2024): 45.3 (#174)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| LMArena Non-English | 1215 | 1312 |
| LMArena Chinese | 1231 | 1331 |
| LMArena French | 1234 | 1302 |
| LMArena German | 1206 | 1286 |
| LMArena Japanese | 1150 | 1292 |
| LMArena Korean | 1140 | 1298 |
| LMArena Russian | 1236 | 1320 |
| LMArena Spanish | 1212 | 1311 |

## Instruction Following

- Gemini 1.5 Flash 8B: 62.8 (#236)
- Gemini 1.5 Pro (May 2024): 68.6 (#185)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| LMArena Instruction Following | 1199 | 1297 |
| IFEval | — | 83.7% |

## Long Context

- Gemini 1.5 Flash 8B: 37.0 (#225)
- Gemini 1.5 Pro (May 2024): 39.8 (#169)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| LMArena Longer Query | 1219 | 1308 |

## Writing & Preference

- Gemini 1.5 Flash 8B: 42.8 (#232)
- Gemini 1.5 Pro (May 2024): 52.4 (#172)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| LMArena Text | 1226 | 1319 |
| LMArena Creative Writing | 1218 | 1333 |
| LMArena Multi-Turn | 1185 | 1296 |
| WildBench | — | 81.3% |

## FAQ

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

Gemini 1.5 Pro (May 2024) is the stronger model overall, scoring 32.1 to 29.9 on the Noometry Index.

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

Gemini 1.5 Flash 8B scores higher on coding benchmarks: 35.5 versus 34.2 in the Noometry coding category.

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

21 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and Gemini 1.5 Pro (May 2024) has 45.