# Claude Opus 4.5 vs Gemini 1.5 Pro (May 2024)

> Claude Opus 4.5 is the stronger model overall, scoring 50.5 to 31.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-opus-4-5-vs-gemini-1-5-pro
- Last updated: 2026-10-10
- Shared benchmarks: 28

## Summary

- They share 28 benchmarks with published results for both. Claude Opus 4.5 scores higher in 9 categories and Gemini 1.5 Pro (May 2024) in 1 category; 10 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Claude Opus 4.5 leads 42.5 to 12.3.
- The biggest single-benchmark swing is Cybench: 82% for Claude Opus 4.5 and 7.5% for Gemini 1.5 Pro (May 2024).

## Snapshot

| | Claude Opus 4.5 | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 50.5 | 31.9 |
| Rank | 39 | 253 |
| Context | 200K | — |
| Input $/M | $5 | — |
| Output $/M | $25 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude Opus 4.5: 55.4 (#21)
- Gemini 1.5 Pro (May 2024): 33.8 (#239)

| Benchmark | Claude Opus 4.5 | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| WeirdML | 63.7% | 22.2% |
| LMArena Coding | 1504 | 1294 |
| SWE-bench Verified | 76.7% | — |
| SWE-bench Verified (bash only) | 76.8% | — |
| LMArena WebDev | 1493 | — |
| SWE-bench Multilingual | 70.7% | — |
| GSO | 26.5% | — |
| BigCodeBench Instruct | — | 43.8% |
| BigCodeBench Complete | — | 57.5% |
| CadEval | — | 34% |
| ALE-Bench | 1,025 | — |
| AlgoTune | 1.77 | — |
| HumanEval+ | — | 79.3% |
| MBPP+ | — | 74.6% |

## Agentic & Tool Use

- Claude Opus 4.5: 47.2 (#11)
- Gemini 1.5 Pro (May 2024): 17.8 (#137)

| Benchmark | Claude Opus 4.5 | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| Cybench | 82% | 7.5% |
| BALROG | 43.5% | 21% |
| Terminal-Bench | 63.1% | — |
| Berkeley Function Calling Leaderboard | 77.5% | — |
| GDPval | 45.5% | — |
| Remote Labor Index | 3.8% | — |
| TheAgentCompany | — | 3.4% |
| τ²-bench Airline | 84% | — |
| τ²-bench Banking | 24.7% | — |
| τ²-bench Retail | 79.6% | — |
| τ²-bench Telecom | 92.3% | — |
| DeepResearch Bench | 54.8% | — |
| OSWorld | 66.3% | — |
| LMArena Search | 1180 | — |
| METR Time Horizons | 75% | — |
| Vending-Bench 2 | 4,967 | — |

## Reasoning

- Claude Opus 4.5: 42.5 (#43)
- Gemini 1.5 Pro (May 2024): 12.3 (#332)

| Benchmark | Claude Opus 4.5 | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| ARC-AGI-2 | 37.6% | 0.8% |
| SimpleBench | 62% | 27.1% |
| LMArena Hard Prompts | 1476 | 1296 |
| DTBench | 89.9% | 59% |
| Epoch Capabilities Index | 150.1 | 131.73 |
| ForecastBench | 60.7 | 58.4 |
| Kagi LLM Benchmark | 80.2% | — |
| NYT Connections (extended) | 52.5% | — |
| ARC-AGI-1 | 80% | — |
| Chess Puzzles | 12% | — |
| EnigmaEval | 11.9% | — |
| EBR-Bench | 14.3% | — |
| Mystery Game Puzzles | 22% | — |
| LMCA | 44.5% | — |
| BIG-Bench Hard | — | 89.2% |

## Math

- Claude Opus 4.5: 38.5 (#85)
- Gemini 1.5 Pro (May 2024): 24.4 (#260)

| Benchmark | Claude Opus 4.5 | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 86.1% | 23.1% |
| LMArena Math | 1463 | 1315 |
| FrontierMath (Tiers 1-3) | 34.4% | — |
| FrontierMath Tier 4 | 4.9% | — |
| ProofBench | 36% | — |
| Omni-MATH | — | 36.4% |
| MATH Level 5 | — | 70.4% |
| FrontierMath (Feb 2025 set) | 20.7% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |

## Knowledge

- Claude Opus 4.5: 56.4 (#38)
- Gemini 1.5 Pro (May 2024): 29.3 (#228)

| Benchmark | Claude Opus 4.5 | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| GPQA Diamond | 86% | 57.2% |
| Humanity's Last Exam | 25.2% | 4.6% |
| LMArena Expert | 1488 | 1279 |
| SimpleQA Verified | 45.7% | — |
| MMLU-Pro | — | 73.7% |
| Confabulations | — | 13.5% |
| Vectara Hallucination Rate | 10.9% | — |
| GPQA (HELM) | — | 53.4% |
| MMLU | — | 86.9% |

## Multimodal

- Claude Opus 4.5: 31.1 (#99)
- Gemini 1.5 Pro (May 2024): 36.2 (#72)

| Benchmark | Claude Opus 4.5 | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| LMArena Vision | — | 1161 |
| Video-MME | — | 75% |
| GeoBench | 75% | — |
| VPCT | 40% | — |
| Furniture Assembly | 28.3% | — |
| LMArena Document | 1462 | — |

## Multilingual

- Claude Opus 4.5: 54.5 (#45)
- Gemini 1.5 Pro (May 2024): 45.5 (#169)

| Benchmark | Claude Opus 4.5 | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| LMArena Non-English | 1438 | 1312 |
| LMArena Chinese | 1470 | 1331 |
| LMArena French | 1471 | 1301 |
| LMArena German | 1449 | 1286 |
| LMArena Japanese | 1415 | 1292 |
| LMArena Korean | 1424 | 1298 |
| LMArena Russian | 1448 | 1320 |
| LMArena Spanish | 1455 | 1310 |

## Instruction Following

- Claude Opus 4.5: 77.7 (#20)
- Gemini 1.5 Pro (May 2024): 68.8 (#180)

| Benchmark | Claude Opus 4.5 | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| LMArena Instruction Following | 1478 | 1297 |
| IFEval | — | 83.7% |

## Long Context

- Claude Opus 4.5: 46.4 (#21)
- Gemini 1.5 Pro (May 2024): 39.7 (#164)

| Benchmark | Claude Opus 4.5 | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| LMArena Longer Query | 1480 | 1308 |
| CL-bench | 21.1% | — |

## Writing & Preference

- Claude Opus 4.5: 68.2 (#28)
- Gemini 1.5 Pro (May 2024): 52.5 (#167)

| Benchmark | Claude Opus 4.5 | Gemini 1.5 Pro (May 2024) |
|---|---|---|
| LMArena Text | 1451 | 1319 |
| LMArena Creative Writing | 1445 | 1333 |
| LMArena Multi-Turn | 1466 | 1296 |
| EQ-Bench Creative Writing | 1687 | — |
| WildBench | — | 81.3% |

## FAQ

### Is Claude Opus 4.5 better than Gemini 1.5 Pro (May 2024)?

Claude Opus 4.5 is the stronger model overall, scoring 50.5 to 31.9 on the Noometry Index.

### Is Claude Opus 4.5 or Gemini 1.5 Pro (May 2024) better for coding?

Claude Opus 4.5 scores higher on coding benchmarks: 55.4 versus 33.8 in the Noometry coding category.

### How many benchmarks do Claude Opus 4.5 and Gemini 1.5 Pro (May 2024) share?

28 benchmarks have published results for both models. Claude Opus 4.5 has 69 scored results on Noometry and Gemini 1.5 Pro (May 2024) has 45.