# Claude 3.5 Sonnet vs Gemini 2.5 Flash-Lite

> Gemini 2.5 Flash-Lite is the stronger model overall, scoring 36.4 to 34.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-5-sonnet-vs-gemini-2-5-flash-lite
- Last updated: 2026-10-10
- Shared benchmarks: 27

## Summary

- They share 27 benchmarks with published results for both. Claude 3.5 Sonnet scores higher in 4 categories and Gemini 2.5 Flash-Lite in 6 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in math, where Gemini 2.5 Flash-Lite leads 35.5 to 18.0.
- The biggest single-benchmark swing is GPQA (HELM): 56.5% for Claude 3.5 Sonnet and 30.9% for Gemini 2.5 Flash-Lite.

## Snapshot

| | Claude 3.5 Sonnet | Gemini 2.5 Flash-Lite |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 34.4 | 36.4 |
| Rank | 225 | 208 |
| Context | — | 1.05M |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.40 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 3.5 Sonnet: 39.5 (#145)
- Gemini 2.5 Flash-Lite: 38.0 (#167)

| Benchmark | Claude 3.5 Sonnet | Gemini 2.5 Flash-Lite |
|---|---|---|
| WeirdML | 40% | 35.2% |
| LMArena Coding | 1343 | 1373 |
| Aider Polyglot | 51.6% | — |
| GSO | 4.6% | — |
| BigCodeBench Instruct | 46.8% | — |
| LiveBench Coding | 67.1% | — |
| BigCodeBench Complete | 58.6% | — |
| CadEval | 48% | — |
| ALE-Bench | — | 325.9 |
| HumanEval+ | 81.7% | — |
| MBPP+ | 74.3% | — |

## Agentic & Tool Use

- Claude 3.5 Sonnet: 32.1 (#61)
- Gemini 2.5 Flash-Lite: 27.8 (#89)

| Benchmark | Claude 3.5 Sonnet | Gemini 2.5 Flash-Lite |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 36.9% |
| TheAgentCompany | 24% | — |
| Cybench | 17.5% | — |
| BALROG | 32.6% | — |
| METR Time Horizons | 45.2% | — |

## Reasoning

- Claude 3.5 Sonnet: 22.5 (#176)
- Gemini 2.5 Flash-Lite: 21.5 (#196)

| Benchmark | Claude 3.5 Sonnet | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Hard Prompts | 1305 | 1377 |
| DTBench | 67.8% | 62.8% |
| Epoch Capabilities Index | 133.55 | 133.93 |
| SimpleBench | 41.4% | — |
| Kagi LLM Benchmark | — | 40.5% |
| EnigmaEval | 0.9% | — |
| LiveBench Reasoning | 56.7% | — |
| LiveBench Data Analysis | 55% | — |
| LMCA | — | 18.1% |
| ForecastBench | 60.7 | — |
| LiveBench | 59% | — |

## Math

- Claude 3.5 Sonnet: 18.0 (#282)
- Gemini 2.5 Flash-Lite: 35.5 (#144)

| Benchmark | Claude 3.5 Sonnet | Gemini 2.5 Flash-Lite |
|---|---|---|
| Omni-MATH | 27.6% | 48% |
| LMArena Math | 1306 | 1373 |
| OTIS Mock AIME 2024-2025 | 8.5% | — |
| LiveBench Math | 52.3% | — |
| MATH Level 5 | 56.9% | — |
| FrontierMath (Feb 2025 set) | 2.1% | — |
| FrontierMath Tier 4 (v1) | 0% | — |

## Knowledge

- Claude 3.5 Sonnet: 28.5 (#236)
- Gemini 2.5 Flash-Lite: 32.1 (#206)

| Benchmark | Claude 3.5 Sonnet | Gemini 2.5 Flash-Lite |
|---|---|---|
| MMLU-Pro | 77.7% | 53.7% |
| GPQA (HELM) | 56.5% | 30.9% |
| LMArena Expert | 1264 | 1373 |
| GPQA Diamond | 55.3% | — |
| Humanity's Last Exam | 4.1% | — |
| Confabulations | 19.9% | — |
| Vectara Hallucination Rate | — | 3.3% |
| MMLU | 87.3% | — |

## Multimodal

- Claude 3.5 Sonnet: 26.0 (#115)
- Gemini 2.5 Flash-Lite: 28.6 (#109)

| Benchmark | Claude 3.5 Sonnet | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Vision | 1125 | 1198 |
| VPCT | 33% | 30% |
| Video-MME | 60% | — |
| GeoBench | 62% | — |

## Multilingual

- Claude 3.5 Sonnet: 43.4 (#180)
- Gemini 2.5 Flash-Lite: 49.5 (#129)

| Benchmark | Claude 3.5 Sonnet | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Non-English | 1283 | 1369 |
| LMArena Chinese | 1271 | 1404 |
| LMArena French | 1304 | 1388 |
| LMArena German | 1297 | 1390 |
| LMArena Japanese | 1234 | 1359 |
| LMArena Korean | 1200 | 1358 |
| LMArena Russian | 1305 | 1373 |
| LMArena Spanish | 1289 | 1396 |

## Instruction Following

- Claude 3.5 Sonnet: 69.0 (#177)
- Gemini 2.5 Flash-Lite: 70.2 (#163)

| Benchmark | Claude 3.5 Sonnet | Gemini 2.5 Flash-Lite |
|---|---|---|
| IFEval | 85.5% | 81% |
| LMArena Instruction Following | 1297 | 1366 |
| LiveBench Instruction Following | 69.3% | — |

## Long Context

- Claude 3.5 Sonnet: 39.9 (#162)
- Gemini 2.5 Flash-Lite: 33.3 (#257)

| Benchmark | Claude 3.5 Sonnet | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Longer Query | 1311 | 1373 |
| Fiction.LiveBench | — | 47.2% |

## Writing & Preference

- Claude 3.5 Sonnet: 53.0 (#159)
- Gemini 2.5 Flash-Lite: 57.0 (#130)

| Benchmark | Claude 3.5 Sonnet | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Text | 1298 | 1379 |
| LMArena Creative Writing | 1292 | 1366 |
| WildBench | 79.2% | 81.8% |
| LMArena Multi-Turn | 1326 | 1367 |
| Short-Story Creative Writing | 80.3% | — |
| EQ-Bench Creative Writing | 1451 | — |
| LiveBench Language | 53.8% | — |

## FAQ

### Is Claude 3.5 Sonnet better than Gemini 2.5 Flash-Lite?

Gemini 2.5 Flash-Lite is the stronger model overall, scoring 36.4 to 34.4 on the Noometry Index.

### Is Claude 3.5 Sonnet or Gemini 2.5 Flash-Lite better for coding?

Claude 3.5 Sonnet scores higher on coding benchmarks: 39.5 versus 38.0 in the Noometry coding category.

### How many benchmarks do Claude 3.5 Sonnet and Gemini 2.5 Flash-Lite share?

27 benchmarks have published results for both models. Claude 3.5 Sonnet has 60 scored results on Noometry and Gemini 2.5 Flash-Lite has 33.