# Gemini 1.5 Flash 8B vs o1

> o1 is the stronger model overall, scoring 40.9 to 29.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-8b-vs-o1
- Last updated: 2026-10-11
- Shared benchmarks: 21

## Summary

- They share 21 benchmarks with published results for both. Gemini 1.5 Flash 8B scores higher in 0 categories and o1 in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where o1 leads 41.5 to 16.0.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 4.6% for Gemini 1.5 Flash 8B and 73.3% for o1.

## Snapshot

| | Gemini 1.5 Flash 8B | o1 |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 29.9 | 40.9 |
| Rank | 301 | 143 |
| Context | — | 200K |
| Input $/M | — | $15 |
| Output $/M | — | $60 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.5 Flash 8B: 35.5 (#225)
- o1: 46.1 (#70)

| Benchmark | Gemini 1.5 Flash 8B | o1 |
|---|---|---|
| LMArena Coding | 1218 | 1367 |
| Aider Polyglot | — | 61.7% |
| WeirdML | — | 47.6% |
| LiveBench Coding | — | 69.7% |
| CadEval | — | 56% |
| HumanEval+ | — | 89% |
| MBPP+ | — | 80.2% |

## Agentic & Tool Use

- Gemini 1.5 Flash 8B: —
- o1: 24.6 (#117)

| Benchmark | Gemini 1.5 Flash 8B | o1 |
|---|---|---|
| Cybench | — | 10% |
| METR Time Horizons | — | 51.1% |

## Reasoning

- Gemini 1.5 Flash 8B: 20.0 (#244)
- o1: 27.9 (#111)

| Benchmark | Gemini 1.5 Flash 8B | o1 |
|---|---|---|
| LMArena Hard Prompts | 1209 | 1371 |
| DTBench | 50% | 74.7% |
| SimpleBench | — | 41.7% |
| ARC-AGI-1 | — | 30.7% |
| Chess Puzzles | — | 15% |
| EnigmaEval | — | 5.7% |
| LiveBench Reasoning | — | 91.6% |
| LiveBench Data Analysis | — | 65.5% |
| LMCA | — | 22.3% |
| Epoch Capabilities Index | — | 141.91 |
| LiveBench | — | 75.7% |

## Math

- Gemini 1.5 Flash 8B: 14.2 (#302)
- o1: 36.1 (#175)

| Benchmark | Gemini 1.5 Flash 8B | o1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.6% | 73.3% |
| LMArena Math | 1207 | 1388 |
| FrontierMath (Tiers 1-3) | — | 14.7% |
| LiveBench Math | — | 80.3% |
| MATH Level 5 | — | 94.7% |
| FrontierMath (Feb 2025 set) | — | 9.3% |

## Knowledge

- Gemini 1.5 Flash 8B: 16.0 (#289)
- o1: 41.5 (#110)

| Benchmark | Gemini 1.5 Flash 8B | o1 |
|---|---|---|
| GPQA Diamond | 33% | 76.8% |
| LMArena Expert | 1185 | 1361 |
| Humanity's Last Exam | — | 8% |
| SimpleQA Verified | — | 41.1% |
| Confabulations | — | 11.7% |

## Multimodal

- Gemini 1.5 Flash 8B: 28.2 (#115)
- o1: 34.2 (#93)

| Benchmark | Gemini 1.5 Flash 8B | o1 |
|---|---|---|
| LMArena Vision | 1044 | 1168 |
| GeoBench | — | 80% |
| VPCT | — | 37% |
| SpatialViz-Bench | — | 41.4% |

## Multilingual

- Gemini 1.5 Flash 8B: 38.5 (#229)
- o1: 48.6 (#142)

| Benchmark | Gemini 1.5 Flash 8B | o1 |
|---|---|---|
| LMArena Non-English | 1215 | 1358 |
| LMArena Chinese | 1231 | 1394 |
| LMArena French | 1234 | 1344 |
| LMArena German | 1206 | 1337 |
| LMArena Japanese | 1150 | 1346 |
| LMArena Korean | 1140 | 1396 |
| LMArena Russian | 1236 | 1356 |
| LMArena Spanish | 1212 | 1345 |

## Instruction Following

- Gemini 1.5 Flash 8B: 62.8 (#236)
- o1: 74.8 (#86)

| Benchmark | Gemini 1.5 Flash 8B | o1 |
|---|---|---|
| LMArena Instruction Following | 1199 | 1367 |
| LiveBench Instruction Following | — | 81.5% |

## Long Context

- Gemini 1.5 Flash 8B: 37.0 (#225)
- o1: 50.3 (#9)

| Benchmark | Gemini 1.5 Flash 8B | o1 |
|---|---|---|
| LMArena Longer Query | 1219 | 1378 |
| Fiction.LiveBench | — | 83.3% |

## Writing & Preference

- Gemini 1.5 Flash 8B: 42.8 (#232)
- o1: 55.6 (#144)

| Benchmark | Gemini 1.5 Flash 8B | o1 |
|---|---|---|
| LMArena Text | 1226 | 1366 |
| LMArena Creative Writing | 1218 | 1348 |
| LMArena Multi-Turn | 1185 | 1369 |
| Short-Story Creative Writing | — | 70.2% |
| LiveBench Language | — | 65.4% |

## FAQ

### Is Gemini 1.5 Flash 8B better than o1?

o1 is the stronger model overall, scoring 40.9 to 29.9 on the Noometry Index.

### Is Gemini 1.5 Flash 8B or o1 better for coding?

o1 scores higher on coding benchmarks: 46.1 versus 35.5 in the Noometry coding category.

### How many benchmarks do Gemini 1.5 Flash 8B and o1 share?

21 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and o1 has 52.