# Claude Opus 5.5 vs Gemini 2.0 Flash-Lite

> Claude Opus 5.5 is the stronger model overall, scoring 68.5 to 37.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-opus-5-5-vs-gemini-2-0-flash-lite
- Last updated: 2026-10-10
- Shared benchmarks: 12

## Summary

- They share 12 benchmarks with published results for both. Claude Opus 5.5 scores higher in 9 categories and Gemini 2.0 Flash-Lite in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Opus 5.5 leads 92.4 to 31.8.
- The biggest single-benchmark swing is DTBench: 98.9% for Claude Opus 5.5 and 52.5% for Gemini 2.0 Flash-Lite.

## Snapshot

| | Claude Opus 5.5 | Gemini 2.0 Flash-Lite |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 68.5 | 37.3 |
| Rank | 3 | 189 |
| Context | 1M | — |
| Input $/M | $4 | — |
| Output $/M | $20 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude Opus 5.5: 71.4 (#1)
- Gemini 2.0 Flash-Lite: 37.4 (#181)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Flash-Lite |
|---|---|---|
| LMArena Coding | 1545 | 1322 |
| FrontierCode | 54.4% | — |
| CursorBench | 57.8% | — |
| LMArena WebDev | 1820 | — |
| FrontierSWE | 62.3% | — |
| SciCode | 66.9% | — |
| LiveBench Coding | — | 47.1% |
| MirrorCode | 77.4% | — |

## Agentic & Tool Use

- Claude Opus 5.5: 45.3 (#13)
- Gemini 2.0 Flash-Lite: —

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Flash-Lite |
|---|---|---|
| APEX-Agents | 73.5% | — |
| GDP.pdf | 30.6% | — |

## Reasoning

- Claude Opus 5.5: 79.5 (#2)
- Gemini 2.0 Flash-Lite: 21.2 (#203)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Flash-Lite |
|---|---|---|
| LMArena Hard Prompts | 1545 | 1324 |
| DTBench | 98.9% | 52.5% |
| ARC-AGI-2 | 92.5% | — |
| NYT Connections (extended) | 88.5% | — |
| ARC-AGI-1 | 97.5% | — |
| CritPt | 31.7% | — |
| EBR-Bench | 71.4% | — |
| LiveBench Reasoning | — | 50.1% |
| Mystery Game Puzzles | 71% | — |
| LiveBench Data Analysis | — | 65.5% |
| LMCA | 68.2% | — |
| ForecastBench | — | 57.1 |
| LiveBench | — | 54.3% |

## Math

- Claude Opus 5.5: 92.4 (#2)
- Gemini 2.0 Flash-Lite: 31.8 (#192)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Flash-Lite |
|---|---|---|
| FrontierMath (Tiers 1-3) | 91.2% | — |
| FrontierMath Tier 4 | 95% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 100% | — |
| Omni-MATH | — | 37.4% |
| LiveBench Math | — | 58.1% |
| LMArena Math | — | 1309 |

## Knowledge

- Claude Opus 5.5: 66.6 (#9)
- Gemini 2.0 Flash-Lite: 34.6 (#185)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Flash-Lite |
|---|---|---|
| LMArena Expert | 1564 | 1305 |
| GPQA Diamond | 90.6% | — |
| SimpleQA Verified | 72.2% | — |
| MMLU-Pro | — | 72% |
| GPQA (HELM) | — | 50% |

## Multimodal

- Claude Opus 5.5: 56.5 (#2)
- Gemini 2.0 Flash-Lite: 30.6 (#103)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Flash-Lite |
|---|---|---|
| LMArena Vision | — | 1100 |
| Furniture Assembly | 83.3% | — |

## Multilingual

- Claude Opus 5.5: 59.8 (#1)
- Gemini 2.0 Flash-Lite: 46.2 (#156)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Flash-Lite |
|---|---|---|
| LMArena Non-English | 1513 | 1323 |
| LMArena Chinese | 1572 | 1339 |
| LMArena Russian | 1532 | 1328 |
| LMArena French | — | 1346 |
| LMArena German | — | 1306 |
| LMArena Japanese | — | 1302 |
| LMArena Korean | — | 1325 |
| LMArena Spanish | — | 1313 |

## Instruction Following

- Claude Opus 5.5: 80.1 (#2)
- Gemini 2.0 Flash-Lite: 70.6 (#158)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Flash-Lite |
|---|---|---|
| LMArena Instruction Following | 1535 | 1305 |
| LiveBench Instruction Following | — | 78.3% |
| IFEval | — | 82.4% |

## Long Context

- Claude Opus 5.5: 47.3 (#18)
- Gemini 2.0 Flash-Lite: 40.1 (#155)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Flash-Lite |
|---|---|---|
| LMArena Longer Query | 1540 | 1321 |

## Writing & Preference

- Claude Opus 5.5: 78.7 (#3)
- Gemini 2.0 Flash-Lite: 51.9 (#172)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Flash-Lite |
|---|---|---|
| LMArena Text | 1518 | 1330 |
| LMArena Creative Writing | 1538 | 1319 |
| LMArena Multi-Turn | 1520 | 1307 |
| EQ-Bench Creative Writing | 2050 | — |
| WildBench | — | 79% |
| LiveBench Language | — | 34.3% |

## FAQ

### Is Claude Opus 5.5 better than Gemini 2.0 Flash-Lite?

Claude Opus 5.5 is the stronger model overall, scoring 68.5 to 37.3 on the Noometry Index.

### Is Claude Opus 5.5 or Gemini 2.0 Flash-Lite better for coding?

Claude Opus 5.5 scores higher on coding benchmarks: 71.4 versus 37.4 in the Noometry coding category.

### How many benchmarks do Claude Opus 5.5 and Gemini 2.0 Flash-Lite share?

12 benchmarks have published results for both models. Claude Opus 5.5 has 35 scored results on Noometry and Gemini 2.0 Flash-Lite has 32.