# Gemini 1.5 Flash (May 2024) vs o1

> o1 is the stronger model overall, scoring 40.9 to 33.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-vs-o1
- Last updated: 2026-10-10
- Shared benchmarks: 28

## Summary

- They share 28 benchmarks with published results for both. Gemini 1.5 Flash (May 2024) scores higher in 2 categories and o1 in 8 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where o1 leads 41.5 to 26.2.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 16.3% for Gemini 1.5 Flash (May 2024) and 73.3% for o1.

## Snapshot

| | Gemini 1.5 Flash (May 2024) | o1 |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 33.2 | 40.9 |
| Rank | 246 | 143 |
| Context | — | 200K |
| Input $/M | — | $15 |
| Output $/M | — | $60 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.5 Flash (May 2024): 34.4 (#236)
- o1: 46.1 (#70)

| Benchmark | Gemini 1.5 Flash (May 2024) | o1 |
|---|---|---|
| WeirdML | 24.9% | 47.6% |
| LMArena Coding | 1261 | 1367 |
| HumanEval+ | 75.6% | 89% |
| MBPP+ | 67.5% | 80.2% |
| Aider Polyglot | — | 61.7% |
| BigCodeBench Instruct | 43.5% | — |
| LiveBench Coding | — | 69.7% |
| BigCodeBench Complete | 55.1% | — |
| CadEval | — | 56% |

## Agentic & Tool Use

- Gemini 1.5 Flash (May 2024): 26.6 (#102)
- o1: 24.6 (#117)

| Benchmark | Gemini 1.5 Flash (May 2024) | o1 |
|---|---|---|
| Cybench | — | 10% |
| BALROG | 14.6% | — |
| METR Time Horizons | — | 51.1% |

## Reasoning

- Gemini 1.5 Flash (May 2024): 21.7 (#215)
- o1: 27.9 (#111)

| Benchmark | Gemini 1.5 Flash (May 2024) | o1 |
|---|---|---|
| LMArena Hard Prompts | 1257 | 1371 |
| DTBench | 53.8% | 74.7% |
| Epoch Capabilities Index | 129.36 | 141.91 |
| 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% |
| ForecastBench | 53.9 | — |
| LiveBench | — | 75.7% |
| PIQA | 87.5% | — |

## Math

- Gemini 1.5 Flash (May 2024): 22.1 (#281)
- o1: 36.1 (#175)

| Benchmark | Gemini 1.5 Flash (May 2024) | o1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 16.3% | 73.3% |
| LMArena Math | 1269 | 1388 |
| MATH Level 5 | 61.9% | 94.7% |
| FrontierMath (Feb 2025 set) | 0% | 9.3% |
| FrontierMath (Tiers 1-3) | — | 14.7% |
| Omni-MATH | 30.4% | — |
| LiveBench Math | — | 80.3% |
| GSM8K | 82.4% | — |

## Knowledge

- Gemini 1.5 Flash (May 2024): 26.2 (#260)
- o1: 41.5 (#110)

| Benchmark | Gemini 1.5 Flash (May 2024) | o1 |
|---|---|---|
| GPQA Diamond | 47.3% | 76.8% |
| LMArena Expert | 1233 | 1361 |
| Humanity's Last Exam | — | 8% |
| SimpleQA Verified | — | 41.1% |
| MMLU-Pro | 67.8% | — |
| Confabulations | — | 11.7% |
| GPQA (HELM) | 43.7% | — |
| BoolQ | 85.8% | — |
| MMLU | 77.9% | — |

## Multimodal

- Gemini 1.5 Flash (May 2024): 36.0 (#81)
- o1: 34.2 (#93)

| Benchmark | Gemini 1.5 Flash (May 2024) | o1 |
|---|---|---|
| LMArena Vision | 1141 | 1168 |
| GeoBench | 76% | 80% |
| Video-MME | 70.3% | — |
| VPCT | — | 37% |
| SpatialViz-Bench | — | 41.4% |

## Multilingual

- Gemini 1.5 Flash (May 2024): 42.9 (#189)
- o1: 48.6 (#142)

| Benchmark | Gemini 1.5 Flash (May 2024) | o1 |
|---|---|---|
| LMArena Non-English | 1278 | 1358 |
| LMArena Chinese | 1295 | 1394 |
| LMArena French | 1258 | 1344 |
| LMArena German | 1262 | 1337 |
| LMArena Japanese | 1252 | 1346 |
| LMArena Korean | 1221 | 1396 |
| LMArena Russian | 1288 | 1356 |
| LMArena Spanish | 1243 | 1345 |

## Instruction Following

- Gemini 1.5 Flash (May 2024): 66.8 (#205)
- o1: 74.8 (#86)

| Benchmark | Gemini 1.5 Flash (May 2024) | o1 |
|---|---|---|
| LMArena Instruction Following | 1258 | 1367 |
| LiveBench Instruction Following | — | 81.5% |
| IFEval | 83.1% | — |

## Long Context

- Gemini 1.5 Flash (May 2024): 39.0 (#187)
- o1: 50.3 (#9)

| Benchmark | Gemini 1.5 Flash (May 2024) | o1 |
|---|---|---|
| LMArena Longer Query | 1284 | 1378 |
| Fiction.LiveBench | — | 83.3% |

## Writing & Preference

- Gemini 1.5 Flash (May 2024): 48.7 (#196)
- o1: 55.6 (#144)

| Benchmark | Gemini 1.5 Flash (May 2024) | o1 |
|---|---|---|
| LMArena Text | 1287 | 1366 |
| LMArena Creative Writing | 1285 | 1348 |
| LMArena Multi-Turn | 1253 | 1369 |
| Short-Story Creative Writing | — | 70.2% |
| WildBench | 79.2% | — |
| LiveBench Language | — | 65.4% |

## FAQ

### Is Gemini 1.5 Flash (May 2024) better than o1?

o1 is the stronger model overall, scoring 40.9 to 33.2 on the Noometry Index.

### Is Gemini 1.5 Flash (May 2024) or o1 better for coding?

o1 scores higher on coding benchmarks: 46.1 versus 34.4 in the Noometry coding category.

### How many benchmarks do Gemini 1.5 Flash (May 2024) and o1 share?

28 benchmarks have published results for both models. Gemini 1.5 Flash (May 2024) has 42 scored results on Noometry and o1 has 52.