# Gemini 3.8 Flash vs o1-mini

> Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 34.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-3-8-flash-vs-o1-mini
- Last updated: 2026-10-11
- Shared benchmarks: 23

## Summary

- They share 23 benchmarks with published results for both. Gemini 3.8 Flash scores higher in 9 categories and o1-mini in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.8 Flash leads 76.9 to 8.8.
- The biggest single-benchmark swing is ARC-AGI-2: 89.2% for Gemini 3.8 Flash and 0.8% for o1-mini.

## Snapshot

| | Gemini 3.8 Flash | o1-mini |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 61.8 | 34.0 |
| Rank | 11 | 235 |
| Context | 1.05M | — |
| Input $/M | $0.75 | — |
| Output $/M | $3.75 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 3.8 Flash: 59.2 (#15)
- o1-mini: 35.5 (#224)

| Benchmark | Gemini 3.8 Flash | o1-mini |
|---|---|---|
| WeirdML | 84.8% | 36.3% |
| LMArena Coding | 1510 | 1362 |
| DeepSWE | 73.8% | — |
| FrontierCode | 41.2% | — |
| Aider Polyglot | — | 32.9% |
| CursorBench | 39.6% | — |
| LMArena WebDev | 1584 | — |
| FrontierSWE | 19.6% | — |
| SciCode | 56.6% | — |
| LiveBench Coding | — | 48% |
| ALE-Bench | 1,270 | — |
| HumanEval+ | — | 89% |
| MBPP+ | — | 78.8% |

## Agentic & Tool Use

- Gemini 3.8 Flash: 41.8 (#21)
- o1-mini: 24.6 (#118)

| Benchmark | Gemini 3.8 Flash | o1-mini |
|---|---|---|
| APEX-Agents | 64.3% | — |
| Remote Labor Index | 5.8% | — |
| Cybench | — | 10% |
| GDP.pdf | 23.4% | — |
| Vending-Bench 2 | 5,094 | — |

## Reasoning

- Gemini 3.8 Flash: 76.9 (#5)
- o1-mini: 8.8 (#346)

| Benchmark | Gemini 3.8 Flash | o1-mini |
|---|---|---|
| ARC-AGI-2 | 89.2% | 0.8% |
| ARC-AGI-1 | 98.5% | 14% |
| LMArena Hard Prompts | 1508 | 1333 |
| Epoch Capabilities Index | 156.71 | 135.82 |
| SimpleBench | — | 18.1% |
| NYT Connections (extended) | 97.4% | — |
| CritPt | 18.3% | — |
| Chess Puzzles | 61% | — |
| LiveBench Reasoning | — | 72.3% |
| Mystery Game Puzzles | 47% | — |
| DTBench | 95.7% | — |
| LiveBench Data Analysis | — | 57.9% |
| LMCA | 52.9% | — |
| Surface Evolver Bench | 76.9% | — |
| LiveBench | — | 57.8% |

## Math

- Gemini 3.8 Flash: 65.3 (#28)
- o1-mini: 35.4 (#186)

| Benchmark | Gemini 3.8 Flash | o1-mini |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 98.9% | 46.9% |
| LMArena Math | 1528 | 1358 |
| FrontierMath (Tiers 1-3) | 68.4% | — |
| FrontierMath Tier 4 | 22% | — |
| ProofBench | 48% | — |
| LiveBench Math | — | 62% |
| MATH Level 5 | — | 89.2% |
| FrontierMath (Feb 2025 set) | — | 1.7% |

## Knowledge

- Gemini 3.8 Flash: 74.8 (#2)
- o1-mini: 34.9 (#192)

| Benchmark | Gemini 3.8 Flash | o1-mini |
|---|---|---|
| GPQA Diamond | 95.4% | 62.4% |
| LMArena Expert | 1524 | 1316 |
| Humanity's Last Exam | 44.5% | — |
| SimpleQA Verified | 69.7% | — |
| Confabulations | — | 18.6% |

## Multimodal

- Gemini 3.8 Flash: 40.7 (#45)
- o1-mini: —

| Benchmark | Gemini 3.8 Flash | o1-mini |
|---|---|---|
| LMArena Vision | 1314 | — |
| Blueprint-Bench 2 | 38.6% | — |
| Furniture Assembly | 31.7% | — |

## Multilingual

- Gemini 3.8 Flash: 58.0 (#5)
- o1-mini: 43.6 (#182)

| Benchmark | Gemini 3.8 Flash | o1-mini |
|---|---|---|
| LMArena Non-English | 1491 | 1289 |
| LMArena Chinese | 1554 | 1314 |
| LMArena French | 1498 | 1293 |
| LMArena German | 1493 | 1278 |
| LMArena Japanese | 1502 | 1245 |
| LMArena Korean | 1459 | 1223 |
| LMArena Russian | 1515 | 1283 |
| LMArena Spanish | 1485 | 1303 |

## Instruction Following

- Gemini 3.8 Flash: 78.0 (#13)
- o1-mini: 66.7 (#206)

| Benchmark | Gemini 3.8 Flash | o1-mini |
|---|---|---|
| LMArena Instruction Following | 1490 | 1304 |
| LiveBench Instruction Following | — | 65.4% |

## Long Context

- Gemini 3.8 Flash: 46.3 (#24)
- o1-mini: 40.1 (#161)

| Benchmark | Gemini 3.8 Flash | o1-mini |
|---|---|---|
| LMArena Longer Query | 1508 | 1320 |

## Writing & Preference

- Gemini 3.8 Flash: 72.2 (#15)
- o1-mini: 48.4 (#202)

| Benchmark | Gemini 3.8 Flash | o1-mini |
|---|---|---|
| LMArena Text | 1499 | 1317 |
| LMArena Creative Writing | 1492 | 1244 |
| LMArena Multi-Turn | 1501 | 1314 |
| Short-Story Creative Writing | — | 64.9% |
| EQ-Bench Creative Writing | 1748 | — |
| LiveBench Language | — | 40.9% |

## FAQ

### Is Gemini 3.8 Flash better than o1-mini?

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 34.0 on the Noometry Index.

### Is Gemini 3.8 Flash or o1-mini better for coding?

Gemini 3.8 Flash scores higher on coding benchmarks: 59.2 versus 35.5 in the Noometry coding category.

### How many benchmarks do Gemini 3.8 Flash and o1-mini share?

23 benchmarks have published results for both models. Gemini 3.8 Flash has 50 scored results on Noometry and o1-mini has 39.