# Claude 3 Opus vs Gemini 2.5 Flash-Lite

> Gemini 2.5 Flash-Lite is the stronger model overall, scoring 36.4 to 29.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-opus-vs-gemini-2-5-flash-lite
- Last updated: 2026-10-10
- Shared benchmarks: 22

## Summary

- They share 22 benchmarks with published results for both. Claude 3 Opus scores higher in 1 category and Gemini 2.5 Flash-Lite in 9 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in math, where Gemini 2.5 Flash-Lite leads 35.5 to 13.9.
- The biggest single-benchmark swing is WeirdML: 19.2% for Claude 3 Opus and 35.2% for Gemini 2.5 Flash-Lite.

## Snapshot

| | Claude 3 Opus | Gemini 2.5 Flash-Lite |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 29.3 | 36.4 |
| Rank | 300 | 208 |
| Context | — | 1.05M |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.40 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 3 Opus: 32.4 (#261)
- Gemini 2.5 Flash-Lite: 38.0 (#167)

| Benchmark | Claude 3 Opus | Gemini 2.5 Flash-Lite |
|---|---|---|
| WeirdML | 19.2% | 35.2% |
| LMArena Coding | 1264 | 1373 |
| BigCodeBench Instruct | 45.5% | — |
| LiveBench Coding | 38.6% | — |
| BigCodeBench Complete | 57.4% | — |
| ALE-Bench | — | 325.9 |
| HumanEval+ | 77.4% | — |
| MBPP+ | 73.3% | — |

## Agentic & Tool Use

- Claude 3 Opus: 24.3 (#110)
- Gemini 2.5 Flash-Lite: 27.8 (#89)

| Benchmark | Claude 3 Opus | Gemini 2.5 Flash-Lite |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 36.9% |
| Cybench | 10% | — |
| METR Time Horizons | 29.5% | — |

## Reasoning

- Claude 3 Opus: 14.2 (#318)
- Gemini 2.5 Flash-Lite: 21.5 (#196)

| Benchmark | Claude 3 Opus | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Hard Prompts | 1246 | 1377 |
| DTBench | 61.6% | 62.8% |
| LMCA | 17% | 18.1% |
| Epoch Capabilities Index | 126.91 | 133.93 |
| SimpleBench | 23.5% | — |
| Kagi LLM Benchmark | — | 40.5% |
| Chess Puzzles | 5% | — |
| EnigmaEval | 0.8% | — |
| LiveBench Reasoning | 40.6% | — |
| LiveBench Data Analysis | 57.9% | — |
| ForecastBench | 58.4 | — |
| LiveBench | 49.2% | — |
| WinoGrande | 88.5% | — |

## Math

- Claude 3 Opus: 13.9 (#293)
- Gemini 2.5 Flash-Lite: 35.5 (#144)

| Benchmark | Claude 3 Opus | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Math | 1273 | 1373 |
| OTIS Mock AIME 2024-2025 | 4.7% | — |
| Omni-MATH | — | 48% |
| LiveBench Math | 43.6% | — |
| MATH Level 5 | 37.5% | — |

## Knowledge

- Claude 3 Opus: 24.5 (#262)
- Gemini 2.5 Flash-Lite: 32.1 (#206)

| Benchmark | Claude 3 Opus | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Expert | 1223 | 1373 |
| GPQA Diamond | 47.2% | — |
| SimpleQA Verified | 12.6% | — |
| MMLU-Pro | — | 53.7% |
| Confabulations | 22.7% | — |
| Vectara Hallucination Rate | — | 3.3% |
| GPQA (HELM) | — | 30.9% |
| MMLU | 84.6% | — |

## Multimodal

- Claude 3 Opus: 26.6 (#112)
- Gemini 2.5 Flash-Lite: 28.6 (#109)

| Benchmark | Claude 3 Opus | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Vision | 1023 | 1198 |
| VPCT | — | 30% |

## Multilingual

- Claude 3 Opus: 41.6 (#202)
- Gemini 2.5 Flash-Lite: 49.5 (#129)

| Benchmark | Claude 3 Opus | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Non-English | 1258 | 1369 |
| LMArena Chinese | 1248 | 1404 |
| LMArena French | 1274 | 1388 |
| LMArena German | 1258 | 1390 |
| LMArena Japanese | 1204 | 1359 |
| LMArena Korean | 1187 | 1358 |
| LMArena Russian | 1280 | 1373 |
| LMArena Spanish | 1246 | 1396 |

## Instruction Following

- Claude 3 Opus: 64.3 (#223)
- Gemini 2.5 Flash-Lite: 70.2 (#163)

| Benchmark | Claude 3 Opus | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Instruction Following | 1248 | 1366 |
| LiveBench Instruction Following | 63.9% | — |
| IFEval | — | 81% |

## Long Context

- Claude 3 Opus: 38.2 (#197)
- Gemini 2.5 Flash-Lite: 33.3 (#257)

| Benchmark | Claude 3 Opus | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Longer Query | 1259 | 1373 |
| Fiction.LiveBench | — | 47.2% |

## Writing & Preference

- Claude 3 Opus: 47.4 (#208)
- Gemini 2.5 Flash-Lite: 57.0 (#130)

| Benchmark | Claude 3 Opus | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Text | 1262 | 1379 |
| LMArena Creative Writing | 1235 | 1366 |
| LMArena Multi-Turn | 1275 | 1367 |
| WildBench | — | 81.8% |
| LiveBench Language | 50.4% | — |

## FAQ

### Is Claude 3 Opus better than Gemini 2.5 Flash-Lite?

Gemini 2.5 Flash-Lite is the stronger model overall, scoring 36.4 to 29.3 on the Noometry Index.

### Is Claude 3 Opus or Gemini 2.5 Flash-Lite better for coding?

Gemini 2.5 Flash-Lite scores higher on coding benchmarks: 38.0 versus 32.4 in the Noometry coding category.

### How many benchmarks do Claude 3 Opus and Gemini 2.5 Flash-Lite share?

22 benchmarks have published results for both models. Claude 3 Opus has 46 scored results on Noometry and Gemini 2.5 Flash-Lite has 33.