# Claude Opus 5 vs Gemini 1.5 Flash (May 2024)

> Claude Opus 5 is the stronger model overall, scoring 67.7 to 32.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-opus-5-vs-gemini-1-5-flash
- Last updated: 2026-10-10
- Shared benchmarks: 24

## Summary

- They share 24 benchmarks with published results for both. Claude Opus 5 scores higher in 10 categories and Gemini 1.5 Flash (May 2024) in 0 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Opus 5 leads 86.1 to 20.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 98.9% for Claude Opus 5 and 16.3% for Gemini 1.5 Flash (May 2024).

## Snapshot

| | Claude Opus 5 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 67.7 | 32.9 |
| Rank | 4 | 240 |
| Context | 1M | — |
| Input $/M | $5 | — |
| Output $/M | $25 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude Opus 5: 67.0 (#5)
- Gemini 1.5 Flash (May 2024): 33.9 (#233)

| Benchmark | Claude Opus 5 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| WeirdML | 91.8% | 24.9% |
| LMArena Coding | 1533 | 1262 |
| DeepSWE | 73.6% | — |
| FrontierCode | 53.4% | — |
| CursorBench | 46.6% | — |
| LMArena WebDev | 1694 | — |
| FrontierSWE | 52% | — |
| SciCode | 56.4% | — |
| BigCodeBench Instruct | — | 43.5% |
| BigCodeBench Complete | — | 55.1% |
| ALE-Bench | 2,165 | — |
| HumanEval+ | — | 75.6% |
| MBPP+ | — | 67.5% |

## Agentic & Tool Use

- Claude Opus 5: 55.5 (#1)
- Gemini 1.5 Flash (May 2024): 26.3 (#97)

| Benchmark | Claude Opus 5 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| BALROG | 63.4% | 14.6% |
| APEX-Agents | 65.8% | — |
| OSWorld 2.0 | 31.4% | — |
| τ²-bench Banking | 48.7% | — |
| PostTrainBench | 35% | — |
| GBAEval | 79.6% | — |
| GDP.pdf | 24% | — |
| Vending-Bench 2 | 11,182 | — |

## Reasoning

- Claude Opus 5: 77.1 (#3)
- Gemini 1.5 Flash (May 2024): 20.8 (#212)

| Benchmark | Claude Opus 5 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Hard Prompts | 1525 | 1257 |
| DTBench | 97.9% | 53.8% |
| Epoch Capabilities Index | 162.67 | 129.37 |
| ARC-AGI-2 | 90.4% | — |
| SimpleBench | 80.6% | — |
| NYT Connections (extended) | 94.3% | — |
| ARC-AGI-1 | 97.5% | — |
| CritPt | 29.1% | — |
| Chess Puzzles | 42% | — |
| EBR-Bench | 45.7% | — |
| Mystery Game Puzzles | 59% | — |
| LMCA | 64.5% | — |
| Bench to the Future 3 | 0.12 | — |
| ForecastBench | — | 53.9 |
| PIQA | — | 87.5% |

## Math

- Claude Opus 5: 86.1 (#6)
- Gemini 1.5 Flash (May 2024): 20.8 (#274)

| Benchmark | Claude Opus 5 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 98.9% | 16.3% |
| LMArena Math | 1533 | 1269 |
| FrontierMath (Tiers 1-3) | 85.6% | — |
| FrontierMath Tier 4 | 73.2% | — |
| ProofBench | 99% | — |
| Omni-MATH | — | 30.4% |
| MATH Level 5 | — | 61.9% |
| FrontierMath (Feb 2025 set) | — | 0% |
| GSM8K | — | 82.4% |

## Knowledge

- Claude Opus 5: 66.8 (#8)
- Gemini 1.5 Flash (May 2024): 26.2 (#253)

| Benchmark | Claude Opus 5 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| GPQA Diamond | 93.9% | 47.3% |
| LMArena Expert | 1558 | 1233 |
| SimpleQA Verified | 59.9% | — |
| MMLU-Pro | — | 67.8% |
| GPQA (HELM) | — | 43.7% |
| BoolQ | — | 85.8% |
| MMLU | — | 77.9% |

## Multimodal

- Claude Opus 5: 51.1 (#6)
- Gemini 1.5 Flash (May 2024): 35.3 (#76)

| Benchmark | Claude Opus 5 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Vision | 1321 | 1141 |
| Video-MME | — | 70.3% |
| GeoBench | — | 76% |
| Blueprint-Bench 2 | 30.4% | — |
| Furniture Assembly | 60.8% | — |
| LMArena Document | 1516 | — |

## Multilingual

- Claude Opus 5: 58.8 (#3)
- Gemini 1.5 Flash (May 2024): 43.1 (#184)

| Benchmark | Claude Opus 5 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Non-English | 1500 | 1278 |
| LMArena Chinese | 1575 | 1295 |
| LMArena French | 1522 | 1257 |
| LMArena German | 1522 | 1262 |
| LMArena Japanese | 1510 | 1252 |
| LMArena Korean | 1526 | 1220 |
| LMArena Russian | 1507 | 1288 |
| LMArena Spanish | 1519 | 1242 |

## Instruction Following

- Claude Opus 5: 79.3 (#5)
- Gemini 1.5 Flash (May 2024): 67.0 (#199)

| Benchmark | Claude Opus 5 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Instruction Following | 1516 | 1258 |
| IFEval | — | 83.1% |

## Long Context

- Claude Opus 5: 46.5 (#20)
- Gemini 1.5 Flash (May 2024): 39.0 (#182)

| Benchmark | Claude Opus 5 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Longer Query | 1516 | 1284 |

## Writing & Preference

- Claude Opus 5: 79.3 (#2)
- Gemini 1.5 Flash (May 2024): 48.9 (#190)

| Benchmark | Claude Opus 5 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Text | 1506 | 1287 |
| LMArena Creative Writing | 1491 | 1285 |
| LMArena Multi-Turn | 1496 | 1253 |
| EQ-Bench Creative Writing | 2133 | — |
| WildBench | — | 79.2% |
| EQ-Bench 4 | 1385 | — |

## FAQ

### Is Claude Opus 5 better than Gemini 1.5 Flash (May 2024)?

Claude Opus 5 is the stronger model overall, scoring 67.7 to 32.9 on the Noometry Index.

### Is Claude Opus 5 or Gemini 1.5 Flash (May 2024) better for coding?

Claude Opus 5 scores higher on coding benchmarks: 67.0 versus 33.9 in the Noometry coding category.

### How many benchmarks do Claude Opus 5 and Gemini 1.5 Flash (May 2024) share?

24 benchmarks have published results for both models. Claude Opus 5 has 57 scored results on Noometry and Gemini 1.5 Flash (May 2024) has 42.