# Claude 3.5 Sonnet vs o1

> o1 is the stronger model overall, scoring 40.9 to 34.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-5-sonnet-vs-o1
- Last updated: 2026-10-10
- Shared benchmarks: 45

## Summary

- They share 45 benchmarks with published results for both. Claude 3.5 Sonnet scores higher in 1 category and o1 in 9 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in math, where o1 leads 36.1 to 19.2.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 8.5% for Claude 3.5 Sonnet and 73.3% for o1.

## Snapshot

| | Claude 3.5 Sonnet | o1 |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Noometry Index | 34.6 | 40.9 |
| Rank | 231 | 143 |
| Context | — | 200K |
| Input $/M | — | $15 |
| Output $/M | — | $60 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 3.5 Sonnet: 39.0 (#165)
- o1: 46.1 (#70)

| Benchmark | Claude 3.5 Sonnet | o1 |
|---|---|---|
| Aider Polyglot | 51.6% | 61.7% |
| WeirdML | 40% | 47.6% |
| LiveBench Coding | 67.1% | 69.7% |
| LMArena Coding | 1342 | 1367 |
| CadEval | 48% | 56% |
| HumanEval+ | 81.7% | 89% |
| MBPP+ | 74.3% | 80.2% |
| GSO | 4.6% | — |
| BigCodeBench Instruct | 46.8% | — |
| BigCodeBench Complete | 58.6% | — |

## Agentic & Tool Use

- Claude 3.5 Sonnet: 32.3 (#67)
- o1: 24.6 (#117)

| Benchmark | Claude 3.5 Sonnet | o1 |
|---|---|---|
| Cybench | 17.5% | 10% |
| METR Time Horizons | 45.2% | 51.1% |
| TheAgentCompany | 24% | — |
| BALROG | 32.6% | — |

## Reasoning

- Claude 3.5 Sonnet: 23.1 (#183)
- o1: 27.9 (#111)

| Benchmark | Claude 3.5 Sonnet | o1 |
|---|---|---|
| SimpleBench | 41.4% | 41.7% |
| EnigmaEval | 0.9% | 5.7% |
| LiveBench Reasoning | 56.7% | 91.6% |
| LMArena Hard Prompts | 1305 | 1371 |
| DTBench | 67.8% | 74.7% |
| LiveBench Data Analysis | 55% | 65.5% |
| Epoch Capabilities Index | 133.55 | 141.91 |
| LiveBench | 59% | 75.7% |
| ARC-AGI-1 | — | 30.7% |
| Chess Puzzles | — | 15% |
| LMCA | — | 22.3% |
| ForecastBench | 60.7 | — |

## Math

- Claude 3.5 Sonnet: 19.2 (#288)
- o1: 36.1 (#175)

| Benchmark | Claude 3.5 Sonnet | o1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 8.5% | 73.3% |
| LiveBench Math | 52.3% | 80.3% |
| LMArena Math | 1307 | 1388 |
| MATH Level 5 | 56.9% | 94.7% |
| FrontierMath (Feb 2025 set) | 2.1% | 9.3% |
| FrontierMath (Tiers 1-3) | — | 14.7% |
| Omni-MATH | 27.6% | — |
| FrontierMath Tier 4 (v1) | 0% | — |

## Knowledge

- Claude 3.5 Sonnet: 28.6 (#245)
- o1: 41.5 (#110)

| Benchmark | Claude 3.5 Sonnet | o1 |
|---|---|---|
| GPQA Diamond | 55.3% | 76.8% |
| Humanity's Last Exam | 4.1% | 8% |
| Confabulations | 19.9% | 11.7% |
| LMArena Expert | 1265 | 1361 |
| SimpleQA Verified | — | 41.1% |
| MMLU-Pro | 77.7% | — |
| GPQA (HELM) | 56.5% | — |
| MMLU | 87.3% | — |

## Multimodal

- Claude 3.5 Sonnet: 26.5 (#120)
- o1: 34.2 (#93)

| Benchmark | Claude 3.5 Sonnet | o1 |
|---|---|---|
| LMArena Vision | 1125 | 1168 |
| GeoBench | 62% | 80% |
| VPCT | 33% | 37% |
| Video-MME | 60% | — |
| SpatialViz-Bench | — | 41.4% |

## Multilingual

- Claude 3.5 Sonnet: 43.2 (#185)
- o1: 48.6 (#142)

| Benchmark | Claude 3.5 Sonnet | o1 |
|---|---|---|
| LMArena Non-English | 1283 | 1358 |
| LMArena Chinese | 1272 | 1394 |
| LMArena French | 1305 | 1344 |
| LMArena German | 1297 | 1337 |
| LMArena Japanese | 1234 | 1346 |
| LMArena Korean | 1200 | 1396 |
| LMArena Russian | 1306 | 1356 |
| LMArena Spanish | 1290 | 1345 |

## Instruction Following

- Claude 3.5 Sonnet: 68.8 (#182)
- o1: 74.8 (#86)

| Benchmark | Claude 3.5 Sonnet | o1 |
|---|---|---|
| LiveBench Instruction Following | 69.3% | 81.5% |
| LMArena Instruction Following | 1297 | 1367 |
| IFEval | 85.5% | — |

## Long Context

- Claude 3.5 Sonnet: 39.9 (#167)
- o1: 50.3 (#9)

| Benchmark | Claude 3.5 Sonnet | o1 |
|---|---|---|
| LMArena Longer Query | 1311 | 1378 |
| Fiction.LiveBench | — | 83.3% |

## Writing & Preference

- Claude 3.5 Sonnet: 52.9 (#164)
- o1: 55.6 (#144)

| Benchmark | Claude 3.5 Sonnet | o1 |
|---|---|---|
| LMArena Text | 1298 | 1366 |
| LMArena Creative Writing | 1292 | 1348 |
| Short-Story Creative Writing | 80.3% | 70.2% |
| LMArena Multi-Turn | 1326 | 1369 |
| LiveBench Language | 53.8% | 65.4% |
| EQ-Bench Creative Writing | 1451 | — |
| WildBench | 79.2% | — |

## FAQ

### Is Claude 3.5 Sonnet better than o1?

o1 is the stronger model overall, scoring 40.9 to 34.6 on the Noometry Index.

### Is Claude 3.5 Sonnet or o1 better for coding?

o1 scores higher on coding benchmarks: 46.1 versus 39.0 in the Noometry coding category.

### How many benchmarks do Claude 3.5 Sonnet and o1 share?

45 benchmarks have published results for both models. Claude 3.5 Sonnet has 60 scored results on Noometry and o1 has 52.