# Claude 3.5 Sonnet vs Gemini 1.5 Flash (May 2024)

> Claude 3.5 Sonnet is the stronger model overall, scoring 34.6 to 33.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-5-sonnet-vs-gemini-1-5-flash
- Last updated: 2026-10-12
- Shared benchmarks: 39

## Summary

- They share 39 benchmarks with published results for both. Claude 3.5 Sonnet scores higher in 8 categories and Gemini 1.5 Flash (May 2024) in 2 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in multimodal, where Gemini 1.5 Flash (May 2024) leads 36.0 to 26.5.
- The biggest single-benchmark swing is BALROG: 32.6% for Claude 3.5 Sonnet and 14.6% for Gemini 1.5 Flash (May 2024).

## Snapshot

| | Claude 3.5 Sonnet | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 34.6 | 33.2 |
| Rank | 231 | 246 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 3.5 Sonnet: 39.0 (#165)
- Gemini 1.5 Flash (May 2024): 34.4 (#236)

| Benchmark | Claude 3.5 Sonnet | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| WeirdML | 40% | 24.9% |
| BigCodeBench Instruct | 46.8% | 43.5% |
| LMArena Coding | 1342 | 1261 |
| BigCodeBench Complete | 58.6% | 55.1% |
| HumanEval+ | 81.7% | 75.6% |
| MBPP+ | 74.3% | 67.5% |
| Aider Polyglot | 51.6% | — |
| GSO | 4.6% | — |
| LiveBench Coding | 67.1% | — |
| CadEval | 48% | — |

## Agentic & Tool Use

- Claude 3.5 Sonnet: 32.3 (#67)
- Gemini 1.5 Flash (May 2024): 26.6 (#102)

| Benchmark | Claude 3.5 Sonnet | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| BALROG | 32.6% | 14.6% |
| TheAgentCompany | 24% | — |
| Cybench | 17.5% | — |
| METR Time Horizons | 45.2% | — |

## Reasoning

- Claude 3.5 Sonnet: 23.1 (#183)
- Gemini 1.5 Flash (May 2024): 21.7 (#215)

| Benchmark | Claude 3.5 Sonnet | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Hard Prompts | 1305 | 1257 |
| DTBench | 67.8% | 53.8% |
| Epoch Capabilities Index | 133.55 | 129.36 |
| ForecastBench | 60.7 | 53.9 |
| SimpleBench | 41.4% | — |
| EnigmaEval | 0.9% | — |
| LiveBench Reasoning | 56.7% | — |
| LiveBench Data Analysis | 55% | — |
| LiveBench | 59% | — |
| PIQA | — | 87.5% |

## Math

- Claude 3.5 Sonnet: 19.2 (#288)
- Gemini 1.5 Flash (May 2024): 22.1 (#281)

| Benchmark | Claude 3.5 Sonnet | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 8.5% | 16.3% |
| Omni-MATH | 27.6% | 30.4% |
| LMArena Math | 1307 | 1269 |
| MATH Level 5 | 56.9% | 61.9% |
| FrontierMath (Feb 2025 set) | 2.1% | 0% |
| LiveBench Math | 52.3% | — |
| FrontierMath Tier 4 (v1) | 0% | — |
| GSM8K | — | 82.4% |

## Knowledge

- Claude 3.5 Sonnet: 28.6 (#245)
- Gemini 1.5 Flash (May 2024): 26.2 (#260)

| Benchmark | Claude 3.5 Sonnet | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| GPQA Diamond | 55.3% | 47.3% |
| MMLU-Pro | 77.7% | 67.8% |
| GPQA (HELM) | 56.5% | 43.7% |
| LMArena Expert | 1265 | 1233 |
| MMLU | 87.3% | 77.9% |
| Humanity's Last Exam | 4.1% | — |
| Confabulations | 19.9% | — |
| BoolQ | — | 85.8% |

## Multimodal

- Claude 3.5 Sonnet: 26.5 (#120)
- Gemini 1.5 Flash (May 2024): 36.0 (#81)

| Benchmark | Claude 3.5 Sonnet | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Vision | 1125 | 1141 |
| Video-MME | 60% | 70.3% |
| GeoBench | 62% | 76% |
| VPCT | 33% | — |

## Multilingual

- Claude 3.5 Sonnet: 43.2 (#185)
- Gemini 1.5 Flash (May 2024): 42.9 (#189)

| Benchmark | Claude 3.5 Sonnet | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Non-English | 1283 | 1278 |
| LMArena Chinese | 1272 | 1295 |
| LMArena French | 1305 | 1258 |
| LMArena German | 1297 | 1262 |
| LMArena Japanese | 1234 | 1252 |
| LMArena Korean | 1200 | 1221 |
| LMArena Russian | 1306 | 1288 |
| LMArena Spanish | 1290 | 1243 |

## Instruction Following

- Claude 3.5 Sonnet: 68.8 (#182)
- Gemini 1.5 Flash (May 2024): 66.8 (#205)

| Benchmark | Claude 3.5 Sonnet | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| IFEval | 85.5% | 83.1% |
| LMArena Instruction Following | 1297 | 1258 |
| LiveBench Instruction Following | 69.3% | — |

## Long Context

- Claude 3.5 Sonnet: 39.9 (#167)
- Gemini 1.5 Flash (May 2024): 39.0 (#187)

| Benchmark | Claude 3.5 Sonnet | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Longer Query | 1311 | 1284 |

## Writing & Preference

- Claude 3.5 Sonnet: 52.9 (#164)
- Gemini 1.5 Flash (May 2024): 48.7 (#196)

| Benchmark | Claude 3.5 Sonnet | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Text | 1298 | 1287 |
| LMArena Creative Writing | 1292 | 1285 |
| WildBench | 79.2% | 79.2% |
| LMArena Multi-Turn | 1326 | 1253 |
| Short-Story Creative Writing | 80.3% | — |
| EQ-Bench Creative Writing | 1451 | — |
| LiveBench Language | 53.8% | — |

## FAQ

### Is Claude 3.5 Sonnet better than Gemini 1.5 Flash (May 2024)?

Claude 3.5 Sonnet is the stronger model overall, scoring 34.6 to 33.2 on the Noometry Index.

### Is Claude 3.5 Sonnet or Gemini 1.5 Flash (May 2024) better for coding?

Claude 3.5 Sonnet scores higher on coding benchmarks: 39.0 versus 34.4 in the Noometry coding category.

### How many benchmarks do Claude 3.5 Sonnet and Gemini 1.5 Flash (May 2024) share?

39 benchmarks have published results for both models. Claude 3.5 Sonnet has 60 scored results on Noometry and Gemini 1.5 Flash (May 2024) has 42.