# Claude Sonnet 5 vs Gemini 3 Pro

> Claude Sonnet 5 and Gemini 3 Pro score almost the same on the Noometry Index (54.6 vs 54.8), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/claude-sonnet-5-vs-gemini-3-pro
- Last updated: 2026-10-10
- Shared benchmarks: 35

## Summary

- They share 35 benchmarks with published results for both. Claude Sonnet 5 scores higher in 6 categories and Gemini 3 Pro in 4 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Sonnet 5 leads 66.2 to 49.9.
- The biggest single-benchmark swing is ProofBench: 77% for Claude Sonnet 5 and 20% for Gemini 3 Pro.

## Snapshot

| | Claude Sonnet 5 | Gemini 3 Pro |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 54.6 | 54.8 |
| Rank | 29 | 28 |
| Context | 1M | — |
| Input $/M | $2 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude Sonnet 5: 55.5 (#26)
- Gemini 3 Pro: 51.6 (#39)

| Benchmark | Claude Sonnet 5 | Gemini 3 Pro |
|---|---|---|
| LMArena WebDev | 1541 | 1440 |
| GSO | 37.3% | 18.6% |
| WeirdML | 68.8% | 69.9% |
| LMArena Coding | 1483 | 1481 |
| ALE-Bench | 1,463 | 1,177 |
| SWE-bench Verified | — | 72.9% |
| DeepSWE | 53.8% | — |
| FrontierCode | 42.7% | — |
| SWE-bench Verified (bash only) | — | 74.2% |
| CursorBench | 34.1% | — |
| SWE-bench Multilingual | — | 68.7% |
| SciCode | 54.3% | — |
| AlgoTune | — | 1.83 |

## Agentic & Tool Use

- Claude Sonnet 5: 42.8 (#18)
- Gemini 3 Pro: 40.6 (#23)

| Benchmark | Claude Sonnet 5 | Gemini 3 Pro |
|---|---|---|
| LMArena Search | 1194 | 1207 |
| Vending-Bench 2 | 6,378 | 5,478 |
| Terminal-Bench | — | 69.4% |
| APEX-Agents | 54.5% | — |
| Berkeley Function Calling Leaderboard | — | 72.5% |
| GDPval | — | 40.3% |
| Remote Labor Index | — | 1.3% |
| τ²-bench Airline | — | 80.5% |
| τ²-bench Banking | — | 18% |
| τ²-bench Retail | — | 75.9% |
| τ²-bench Telecom | — | 91% |
| DeepResearch Bench | — | 46.3% |
| BALROG | — | 58.1% |
| GBAEval | 65.3% | — |
| METR Time Horizons | — | 71% |

## Reasoning

- Claude Sonnet 5: 49.1 (#39)
- Gemini 3 Pro: 52.5 (#31)

| Benchmark | Claude Sonnet 5 | Gemini 3 Pro |
|---|---|---|
| SimpleBench | 60.6% | 76.4% |
| NYT Connections (extended) | 75.1% | 94.4% |
| CritPt | 16.9% | 6.9% |
| Chess Puzzles | 35% | 31% |
| LMArena Hard Prompts | 1461 | 1480 |
| Epoch Capabilities Index | 156.21 | 152.92 |
| ForecastBench | 61.1 | 61.2 |
| ARC-AGI-2 | — | 31.1% |
| Kagi LLM Benchmark | — | 80.1% |
| ARC-AGI-1 | — | 75% |
| EnigmaEval | — | 18.2% |
| Mystery Game Puzzles | 35% | — |
| DTBench | 92.5% | — |
| LMCA | 50% | — |
| Surface Evolver Bench | 60% | — |
| Bench to the Future 3 | 0.14 | — |

## Math

- Claude Sonnet 5: 66.2 (#27)
- Gemini 3 Pro: 49.9 (#59)

| Benchmark | Claude Sonnet 5 | Gemini 3 Pro |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 94.7% | 91.4% |
| ProofBench | 77% | 20% |
| LMArena Math | 1467 | 1476 |
| FrontierMath (Tiers 1-3) | 65.6% | — |
| FrontierMath Tier 4 | 29.3% | — |
| MathArena Final-Answer Competitions | — | 67% |
| Omni-MATH | — | 55.5% |
| FrontierMath (Feb 2025 set) | — | 37.6% |
| FrontierMath Tier 4 (v1) | — | 18.8% |

## Knowledge

- Claude Sonnet 5: 55.6 (#47)
- Gemini 3 Pro: 64.4 (#16)

| Benchmark | Claude Sonnet 5 | Gemini 3 Pro |
|---|---|---|
| GPQA Diamond | 90.5% | 92.6% |
| LMArena Expert | 1490 | 1475 |
| Humanity's Last Exam | — | 37.5% |
| SimpleQA Verified | 33.7% | — |
| MMLU-Pro | — | 90.3% |
| Vectara Hallucination Rate | — | 13.6% |
| GPQA (HELM) | — | 80.3% |

## Multimodal

- Claude Sonnet 5: 42.4 (#31)
- Gemini 3 Pro: 57.6 (#2)

| Benchmark | Claude Sonnet 5 | Gemini 3 Pro |
|---|---|---|
| LMArena Vision | 1274 | 1305 |
| LMArena Document | 1466 | 1434 |
| GeoBench | — | 84% |
| VPCT | — | 91% |
| Blueprint-Bench 2 | 24.9% | — |

## Multilingual

- Claude Sonnet 5: 53.8 (#55)
- Gemini 3 Pro: 56.9 (#16)

| Benchmark | Claude Sonnet 5 | Gemini 3 Pro |
|---|---|---|
| LMArena Non-English | 1431 | 1474 |
| LMArena Chinese | 1477 | 1523 |
| LMArena French | 1460 | 1492 |
| LMArena German | 1440 | 1515 |
| LMArena Japanese | 1422 | 1510 |
| LMArena Korean | 1411 | 1448 |
| LMArena Russian | 1451 | 1493 |
| LMArena Spanish | 1437 | 1470 |

## Instruction Following

- Claude Sonnet 5: 76.3 (#41)
- Gemini 3 Pro: 76.3 (#45)

| Benchmark | Claude Sonnet 5 | Gemini 3 Pro |
|---|---|---|
| LMArena Instruction Following | 1452 | 1458 |
| IFEval | — | 87.7% |

## Long Context

- Claude Sonnet 5: 44.8 (#55)
- Gemini 3 Pro: 44.0 (#79)

| Benchmark | Claude Sonnet 5 | Gemini 3 Pro |
|---|---|---|
| LMArena Longer Query | 1463 | 1471 |
| CL-bench | — | 15.8% |

## Writing & Preference

- Claude Sonnet 5: 69.2 (#25)
- Gemini 3 Pro: 66.4 (#35)

| Benchmark | Claude Sonnet 5 | Gemini 3 Pro |
|---|---|---|
| LMArena Text | 1442 | 1479 |
| LMArena Creative Writing | 1416 | 1482 |
| EQ-Bench Creative Writing | 1794 | 1525 |
| LMArena Multi-Turn | 1454 | 1484 |
| WildBench | — | 85.9% |
| EQ-Bench 4 | 1236 | — |

## FAQ

### Is Claude Sonnet 5 better than Gemini 3 Pro?

Claude Sonnet 5 and Gemini 3 Pro score almost the same on the Noometry Index (54.6 vs 54.8), so choose on price, context window or the category you care about most.

### Is Claude Sonnet 5 or Gemini 3 Pro better for coding?

Claude Sonnet 5 scores higher on coding benchmarks: 55.5 versus 51.6 in the Noometry coding category.

### How many benchmarks do Claude Sonnet 5 and Gemini 3 Pro share?

35 benchmarks have published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Gemini 3 Pro has 67.