# Claude 3 Sonnet vs Claude Opus 4.7

> Claude Opus 4.7 is the stronger model overall, scoring 58.4 to 28.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-sonnet-vs-claude-opus-4-7
- Last updated: 2026-10-10
- Shared benchmarks: 23

## Summary

- They share 23 benchmarks with published results for both. Claude 3 Sonnet scores higher in 0 categories and Claude Opus 4.7 in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Opus 4.7 leads 66.5 to 10.0.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 3 Sonnet and 97.8% for Claude Opus 4.7.

## Snapshot

| | Claude 3 Sonnet | Claude Opus 4.7 |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Noometry Index | 28.8 | 58.4 |
| Rank | 311 | 17 |
| Context | — | 1M |
| Input $/M | — | $5 |
| Output $/M | — | $25 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 3 Sonnet: 29.2 (#296)
- Claude Opus 4.7: 59.9 (#10)

| Benchmark | Claude 3 Sonnet | Claude Opus 4.7 |
|---|---|---|
| WeirdML | 10.2% | 76.4% |
| LMArena Coding | 1223 | 1519 |
| SWE-bench Verified | — | 83.5% |
| FrontierCode | — | 38.5% |
| LMArena WebDev | — | 1557 |
| SciCode | — | 54.5% |
| GSO | — | 44.1% |
| BigCodeBench Instruct | 42.7% | — |
| MirrorCode | — | 31.1% |
| BigCodeBench Complete | 53.8% | — |
| ALE-Bench | — | 1,323 |
| HumanEval+ | 64% | — |
| MBPP+ | 69.3% | — |

## Agentic & Tool Use

- Claude 3 Sonnet: —
- Claude Opus 4.7: 47.9 (#8)

| Benchmark | Claude 3 Sonnet | Claude Opus 4.7 |
|---|---|---|
| Terminal-Bench | — | 80.2% |
| APEX-Agents | — | 49.2% |
| OSWorld 2.0 | — | 18.2% |
| τ²-bench Banking | — | 40.2% |
| PostTrainBench | — | 28.6% |
| ExploitBench | — | 26.5% |
| GBAEval | — | 43.8% |
| GDP.pdf | — | 21% |
| LMArena Search | — | 1233 |
| Vending-Bench 2 | — | 10,937 |

## Reasoning

- Claude 3 Sonnet: 19.7 (#232)
- Claude Opus 4.7: 53.7 (#24)

| Benchmark | Claude 3 Sonnet | Claude Opus 4.7 |
|---|---|---|
| LMArena Hard Prompts | 1197 | 1507 |
| DTBench | 53.6% | 94.7% |
| Epoch Capabilities Index | 120.69 | 156.39 |
| ARC-AGI-2 | — | 75.8% |
| SimpleBench | — | 61.7% |
| Kagi LLM Benchmark | — | 80.7% |
| NYT Connections (extended) | — | 39% |
| ARC-AGI-1 | — | 93.5% |
| CritPt | — | 12% |
| Chess Puzzles | — | 30% |
| Thematic Generalization | — | 72.8% |
| EBR-Bench | — | 19% |
| Mystery Game Puzzles | — | 28% |
| LMCA | — | 52.2% |
| ForecastBench | — | 60.3 |
| WinoGrande | 75.1% | — |

## Math

- Claude 3 Sonnet: 10.0 (#305)
- Claude Opus 4.7: 66.5 (#20)

| Benchmark | Claude 3 Sonnet | Claude Opus 4.7 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | 97.8% |
| LMArena Math | 1213 | 1499 |
| FrontierMath (Tiers 1-3) | — | 70.2% |
| FrontierMath Tier 4 | — | 31.7% |
| MathArena Final-Answer Competitions | — | 73.6% |
| ProofBench | — | 54% |
| MATH Level 5 | 18.2% | — |
| FrontierMath (Feb 2025 set) | — | 43.8% |
| FrontierMath Tier 4 (v1) | — | 22.9% |

## Knowledge

- Claude 3 Sonnet: 21.1 (#271)
- Claude Opus 4.7: 62.6 (#20)

| Benchmark | Claude 3 Sonnet | Claude Opus 4.7 |
|---|---|---|
| GPQA Diamond | 40.6% | 90.2% |
| LMArena Expert | 1173 | 1521 |
| Humanity's Last Exam | — | 36.2% |
| SimpleQA Verified | — | 51.7% |
| Vectara Hallucination Rate | — | 12% |
| MMLU | 75.9% | — |

## Multimodal

- Claude 3 Sonnet: 24.7 (#120)
- Claude Opus 4.7: 41.5 (#29)

| Benchmark | Claude 3 Sonnet | Claude Opus 4.7 |
|---|---|---|
| LMArena Vision | 984 | 1317 |
| Blueprint-Bench 2 | — | 24.5% |
| Furniture Assembly | — | 33.3% |
| LMArena Document | — | 1495 |

## Multilingual

- Claude 3 Sonnet: 38.0 (#229)
- Claude Opus 4.7: 57.5 (#9)

| Benchmark | Claude 3 Sonnet | Claude Opus 4.7 |
|---|---|---|
| LMArena Non-English | 1205 | 1481 |
| LMArena Chinese | 1188 | 1530 |
| LMArena French | 1228 | 1505 |
| LMArena German | 1204 | 1494 |
| LMArena Japanese | 1131 | 1472 |
| LMArena Korean | 1128 | 1466 |
| LMArena Russian | 1227 | 1494 |
| LMArena Spanish | 1204 | 1497 |

## Instruction Following

- Claude 3 Sonnet: 63.1 (#230)
- Claude Opus 4.7: 78.6 (#9)

| Benchmark | Claude 3 Sonnet | Claude Opus 4.7 |
|---|---|---|
| LMArena Instruction Following | 1200 | 1498 |

## Long Context

- Claude 3 Sonnet: 36.7 (#223)
- Claude Opus 4.7: 46.1 (#24)

| Benchmark | Claude 3 Sonnet | Claude Opus 4.7 |
|---|---|---|
| LMArena Longer Query | 1211 | 1505 |

## Writing & Preference

- Claude 3 Sonnet: 42.3 (#233)
- Claude Opus 4.7: 75.3 (#8)

| Benchmark | Claude 3 Sonnet | Claude Opus 4.7 |
|---|---|---|
| LMArena Text | 1218 | 1491 |
| LMArena Creative Writing | 1186 | 1486 |
| LMArena Multi-Turn | 1227 | 1506 |
| EQ-Bench Creative Writing | — | 1914 |
| EQ-Bench 4 | — | 1311 |

## FAQ

### Is Claude 3 Sonnet better than Claude Opus 4.7?

Claude Opus 4.7 is the stronger model overall, scoring 58.4 to 28.8 on the Noometry Index.

### Is Claude 3 Sonnet or Claude Opus 4.7 better for coding?

Claude Opus 4.7 scores higher on coding benchmarks: 59.9 versus 29.2 in the Noometry coding category.

### How many benchmarks do Claude 3 Sonnet and Claude Opus 4.7 share?

23 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and Claude Opus 4.7 has 66.