# Claude Opus 5.5 vs Gemini 2.0 Pro

> Claude Opus 5.5 is the stronger model overall, scoring 68.5 to 38.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-opus-5-5-vs-gemini-2-0-pro
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Claude Opus 5.5 scores higher in 7 categories and Gemini 2.0 Pro in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Claude Opus 5.5 leads 79.5 to 21.6.
- The biggest single-benchmark swing is GPQA Diamond: 90.6% for Claude Opus 5.5 and 65.7% for Gemini 2.0 Pro.

## Snapshot

| | Claude Opus 5.5 | Gemini 2.0 Pro |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 68.5 | 38.6 |
| Rank | 3 | 171 |
| Context | 1M | — |
| Input $/M | $4 | — |
| Output $/M | $20 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude Opus 5.5: 71.4 (#1)
- Gemini 2.0 Pro: 37.4 (#182)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Pro |
|---|---|---|
| FrontierCode | 54.4% | — |
| Aider Polyglot | — | 35.6% |
| CursorBench | 57.8% | — |
| LMArena WebDev | 1820 | — |
| FrontierSWE | 62.3% | — |
| SciCode | 66.9% | — |
| LiveBench Coding | — | 63.5% |
| LMArena Coding | 1545 | — |
| MirrorCode | 77.4% | — |

## Agentic & Tool Use

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

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

## Reasoning

- Claude Opus 5.5: 79.5 (#2)
- Gemini 2.0 Pro: 21.6 (#194)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Pro |
|---|---|---|
| ARC-AGI-2 | 92.5% | — |
| NYT Connections (extended) | 88.5% | — |
| ARC-AGI-1 | 97.5% | — |
| CritPt | 31.7% | — |
| EnigmaEval | — | 0.7% |
| EBR-Bench | 71.4% | — |
| LiveBench Reasoning | — | 60.1% |
| LMArena Hard Prompts | 1545 | — |
| Mystery Game Puzzles | 71% | — |
| DTBench | 98.9% | — |
| LiveBench Data Analysis | — | 68% |
| LMCA | 68.2% | — |
| Epoch Capabilities Index | — | 135.06 |
| LiveBench | — | 65.1% |

## Math

- Claude Opus 5.5: 92.4 (#2)
- Gemini 2.0 Pro: 37.1 (#101)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | 91.2% | — |
| FrontierMath Tier 4 | 95% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 100% | — |
| LiveBench Math | — | 71% |
| MATH Level 5 | — | 83.5% |

## Knowledge

- Claude Opus 5.5: 66.6 (#9)
- Gemini 2.0 Pro: 36.5 (#156)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Pro |
|---|---|---|
| GPQA Diamond | 90.6% | 65.7% |
| SimpleQA Verified | 72.2% | — |
| Confabulations | — | 18.4% |
| LMArena Expert | 1564 | — |

## Multimodal

- Claude Opus 5.5: 56.5 (#2)
- Gemini 2.0 Pro: —

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Pro |
|---|---|---|
| Furniture Assembly | 83.3% | — |

## Multilingual

- Claude Opus 5.5: 59.8 (#1)
- Gemini 2.0 Pro: —

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Pro |
|---|---|---|
| LMArena Non-English | 1513 | — |
| LMArena Chinese | 1572 | — |
| LMArena Russian | 1532 | — |

## Instruction Following

- Claude Opus 5.5: 80.1 (#2)
- Gemini 2.0 Pro: 75.6 (#57)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Pro |
|---|---|---|
| LiveBench Instruction Following | — | 83.4% |
| LMArena Instruction Following | 1535 | — |

## Long Context

- Claude Opus 5.5: 47.3 (#18)
- Gemini 2.0 Pro: 29.1 (#287)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Pro |
|---|---|---|
| Fiction.LiveBench | — | 41.7% |
| LMArena Longer Query | 1540 | — |

## Writing & Preference

- Claude Opus 5.5: 78.7 (#3)
- Gemini 2.0 Pro: 52.7 (#164)

| Benchmark | Claude Opus 5.5 | Gemini 2.0 Pro |
|---|---|---|
| LMArena Text | 1518 | — |
| LMArena Creative Writing | 1538 | — |
| EQ-Bench Creative Writing | 2050 | — |
| LMArena Multi-Turn | 1520 | — |
| LiveBench Language | — | 44.9% |

## FAQ

### Is Claude Opus 5.5 better than Gemini 2.0 Pro?

Claude Opus 5.5 is the stronger model overall, scoring 68.5 to 38.6 on the Noometry Index.

### Is Claude Opus 5.5 or Gemini 2.0 Pro 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 Pro share?

1 benchmark has published results for both models. Claude Opus 5.5 has 35 scored results on Noometry and Gemini 2.0 Pro has 14.