# Gemini 2.0 Flash-Lite vs o3-pro

> o3-pro is the stronger model overall, scoring 42.9 to 37.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-2-0-flash-lite-vs-o3-pro
- Last updated: 2026-10-11
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Gemini 2.0 Flash-Lite scores higher in 1 category and o3-pro in 4 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in long context, where o3-pro leads 72.2 to 40.1.
- The biggest single-benchmark swing is DTBench: 52.5% for Gemini 2.0 Flash-Lite and 86.9% for o3-pro.

## Snapshot

| | Gemini 2.0 Flash-Lite | o3-pro |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 37.8 | 42.9 |
| Rank | 194 | 105 |
| Context | — | 200K |
| Input $/M | — | $20 |
| Output $/M | — | $80 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 2.0 Flash-Lite: 37.9 (#185)
- o3-pro: 55.5 (#24)

| Benchmark | Gemini 2.0 Flash-Lite | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| WeirdML | — | 58.2% |
| LiveBench Coding | 47.1% | — |
| LMArena Coding | 1322 | — |

## Reasoning

- Gemini 2.0 Flash-Lite: 22.0 (#210)
- o3-pro: 23.8 (#171)

| Benchmark | Gemini 2.0 Flash-Lite | o3-pro |
|---|---|---|
| DTBench | 52.5% | 86.9% |
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| ARC-AGI-1 | — | 59.3% |
| LiveBench Reasoning | 50.1% | — |
| LMArena Hard Prompts | 1324 | — |
| LiveBench Data Analysis | 65.5% | — |
| LMCA | — | 38.5% |
| Epoch Capabilities Index | — | 147.42 |
| ForecastBench | 57.1 | — |
| LiveBench | 54.3% | — |

## Math

- Gemini 2.0 Flash-Lite: 34.1 (#196)
- o3-pro: —

| Benchmark | Gemini 2.0 Flash-Lite | o3-pro |
|---|---|---|
| Omni-MATH | 37.4% | — |
| LiveBench Math | 58.1% | — |
| LMArena Math | 1309 | — |

## Knowledge

- Gemini 2.0 Flash-Lite: 35.0 (#189)
- o3-pro: 29.5 (#238)

| Benchmark | Gemini 2.0 Flash-Lite | o3-pro |
|---|---|---|
| MMLU-Pro | 72% | — |
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 23.3% |
| GPQA (HELM) | 50% | — |
| LMArena Expert | 1305 | — |

## Multimodal

- Gemini 2.0 Flash-Lite: 31.2 (#109)
- o3-pro: —

| Benchmark | Gemini 2.0 Flash-Lite | o3-pro |
|---|---|---|
| LMArena Vision | 1100 | — |

## Multilingual

- Gemini 2.0 Flash-Lite: 46.0 (#161)
- o3-pro: —

| Benchmark | Gemini 2.0 Flash-Lite | o3-pro |
|---|---|---|
| LMArena Non-English | 1323 | — |
| LMArena Chinese | 1339 | — |
| LMArena French | 1347 | — |
| LMArena German | 1306 | — |
| LMArena Japanese | 1301 | — |
| LMArena Korean | 1325 | — |
| LMArena Russian | 1328 | — |
| LMArena Spanish | 1313 | — |

## Instruction Following

- Gemini 2.0 Flash-Lite: 70.4 (#163)
- o3-pro: —

| Benchmark | Gemini 2.0 Flash-Lite | o3-pro |
|---|---|---|
| LiveBench Instruction Following | 78.3% | — |
| IFEval | 82.4% | — |
| LMArena Instruction Following | 1305 | — |

## Long Context

- Gemini 2.0 Flash-Lite: 40.1 (#160)
- o3-pro: 72.2 (#1)

| Benchmark | Gemini 2.0 Flash-Lite | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1320 | — |

## Writing & Preference

- Gemini 2.0 Flash-Lite: 51.7 (#177)
- o3-pro: 57.1 (#133)

| Benchmark | Gemini 2.0 Flash-Lite | o3-pro |
|---|---|---|
| LMArena Text | 1330 | — |
| LMArena Creative Writing | 1319 | — |
| Short-Story Creative Writing | — | 84.4% |
| WildBench | 79% | — |
| LMArena Multi-Turn | 1307 | — |
| LiveBench Language | 34.3% | — |

## FAQ

### Is Gemini 2.0 Flash-Lite better than o3-pro?

o3-pro is the stronger model overall, scoring 42.9 to 37.8 on the Noometry Index.

### Is Gemini 2.0 Flash-Lite or o3-pro better for coding?

o3-pro scores higher on coding benchmarks: 55.5 versus 37.9 in the Noometry coding category.

### How many benchmarks do Gemini 2.0 Flash-Lite and o3-pro share?

1 benchmark has published results for both models. Gemini 2.0 Flash-Lite has 32 scored results on Noometry and o3-pro has 12.