# Gemini 1.5 Flash 8B vs Gemini 3.5 Flash Lite

> Gemini 3.5 Flash Lite is the stronger model overall, scoring 41.5 to 29.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-8b-vs-gemini-3-5-flash-lite
- 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 0 categories and Gemini 3.5 Flash Lite in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Gemini 3.5 Flash Lite leads 50.1 to 16.0.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 4.6% for Gemini 1.5 Flash 8B and 71.1% for Gemini 3.5 Flash Lite.

## Snapshot

| | Gemini 1.5 Flash 8B | Gemini 3.5 Flash Lite |
|---|---|---|
| Provider | Google | Google |
| Noometry Index | 29.9 | 41.5 |
| Rank | 301 | 133 |
| Context | — | 1.05M |
| Input $/M | — | $0.30 |
| Output $/M | — | $2.50 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.5 Flash 8B: 35.5 (#225)
- Gemini 3.5 Flash Lite: 42.4 (#104)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 3.5 Flash Lite |
|---|---|---|
| LMArena Coding | 1218 | 1453 |
| LMArena WebDev | — | 1440 |
| SciCode | — | 41.3% |
| WeirdML | — | 39% |
| ALE-Bench | — | 765.27 |

## Agentic & Tool Use

- Gemini 1.5 Flash 8B: —
- Gemini 3.5 Flash Lite: 25.7 (#107)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 3.5 Flash Lite |
|---|---|---|
| APEX-Agents | — | 29.3% |
| GDP.pdf | — | 10% |

## Reasoning

- Gemini 1.5 Flash 8B: 20.0 (#244)
- Gemini 3.5 Flash Lite: 27.8 (#114)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 3.5 Flash Lite |
|---|---|---|
| LMArena Hard Prompts | 1209 | 1441 |
| DTBench | 50% | 83.5% |
| ARC-AGI-2 | — | 10.3% |
| NYT Connections (extended) | — | 60.4% |
| ARC-AGI-1 | — | 53.5% |
| CritPt | — | 0% |
| Chess Puzzles | — | 22% |
| Mystery Game Puzzles | — | 19% |
| LMCA | — | 37.6% |
| Epoch Capabilities Index | — | 145.13 |

## Math

- Gemini 1.5 Flash 8B: 14.2 (#302)
- Gemini 3.5 Flash Lite: 25.9 (#264)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 3.5 Flash Lite |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.6% | 71.1% |
| LMArena Math | 1207 | 1433 |
| FrontierMath (Tiers 1-3) | — | 26% |
| FrontierMath Tier 4 | — | 0% |
| ProofBench | — | 13% |

## Knowledge

- Gemini 1.5 Flash 8B: 16.0 (#289)
- Gemini 3.5 Flash Lite: 50.1 (#72)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 3.5 Flash Lite |
|---|---|---|
| GPQA Diamond | 33% | 83.3% |
| LMArena Expert | 1185 | 1435 |

## Multimodal

- Gemini 1.5 Flash 8B: 28.2 (#115)
- Gemini 3.5 Flash Lite: 41.1 (#40)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 3.5 Flash Lite |
|---|---|---|
| LMArena Vision | 1044 | 1268 |

## Multilingual

- Gemini 1.5 Flash 8B: 38.5 (#229)
- Gemini 3.5 Flash Lite: 53.5 (#63)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 3.5 Flash Lite |
|---|---|---|
| LMArena Non-English | 1215 | 1427 |
| LMArena Chinese | 1231 | 1469 |
| LMArena French | 1234 | 1451 |
| LMArena German | 1206 | 1454 |
| LMArena Japanese | 1150 | 1427 |
| LMArena Korean | 1140 | 1407 |
| LMArena Russian | 1236 | 1443 |
| LMArena Spanish | 1212 | 1442 |

## Instruction Following

- Gemini 1.5 Flash 8B: 62.8 (#236)
- Gemini 3.5 Flash Lite: 74.8 (#85)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 3.5 Flash Lite |
|---|---|---|
| LMArena Instruction Following | 1199 | 1420 |

## Long Context

- Gemini 1.5 Flash 8B: 37.0 (#225)
- Gemini 3.5 Flash Lite: 43.9 (#84)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 3.5 Flash Lite |
|---|---|---|
| LMArena Longer Query | 1219 | 1435 |

## Writing & Preference

- Gemini 1.5 Flash 8B: 42.8 (#232)
- Gemini 3.5 Flash Lite: 64.2 (#57)

| Benchmark | Gemini 1.5 Flash 8B | Gemini 3.5 Flash Lite |
|---|---|---|
| LMArena Text | 1226 | 1435 |
| LMArena Creative Writing | 1218 | 1420 |
| LMArena Multi-Turn | 1185 | 1445 |
| EQ-Bench Creative Writing | — | 1559 |

## FAQ

### Is Gemini 1.5 Flash 8B better than Gemini 3.5 Flash Lite?

Gemini 3.5 Flash Lite is the stronger model overall, scoring 41.5 to 29.9 on the Noometry Index.

### Is Gemini 1.5 Flash 8B or Gemini 3.5 Flash Lite better for coding?

Gemini 3.5 Flash Lite scores higher on coding benchmarks: 42.4 versus 35.5 in the Noometry coding category.

### How many benchmarks do Gemini 1.5 Flash 8B and Gemini 3.5 Flash Lite share?

21 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and Gemini 3.5 Flash Lite has 39.