# Claude Sonnet 5 vs StarCoder 2 7B

> Claude Sonnet 5 has enough public results to be ranked (#26); StarCoder 2 7B does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/claude-sonnet-5-vs-starcoder-2-7b
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Claude Sonnet 5 scores higher in 1 category and StarCoder 2 7B in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in coding, where Claude Sonnet 5 leads 55.5 to 34.2.
- StarCoder 2 7B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude Sonnet 5 | StarCoder 2 7B |
|---|---|---|
| Provider | Anthropic | NVIDIA |
| Noometry Index | 54.5 | 36.5 |
| Rank | 26 | — |
| Context | 1M | — |
| Input $/M | $2 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Open |

## Coding

- Claude Sonnet 5: 55.5 (#20)
- StarCoder 2 7B: 34.2

| Benchmark | Claude Sonnet 5 | StarCoder 2 7B |
|---|---|---|
| DeepSWE | 53.8% | — |
| FrontierCode | 42.7% | — |
| CursorBench | 34.1% | — |
| LMArena WebDev | 1540 | — |
| SciCode | 53.6% | — |
| GSO | 37.3% | — |
| WeirdML | 68.8% | — |
| LMArena Coding | 1483 | — |
| BigCodeBench Complete | — | 27.7% |
| ALE-Bench | 1,463 | — |
| HumanEval+ | — | 29.9% |

## Agentic & Tool Use

- Claude Sonnet 5: 42.7 (#16)
- StarCoder 2 7B: —

| Benchmark | Claude Sonnet 5 | StarCoder 2 7B |
|---|---|---|
| APEX-Agents | 54.5% | — |
| GBAEval | 65.3% | — |
| LMArena Search | 1194 | — |
| Vending-Bench 2 | 6,378 | — |

## Reasoning

- Claude Sonnet 5: 48.2 (#37)
- StarCoder 2 7B: —

| Benchmark | Claude Sonnet 5 | StarCoder 2 7B |
|---|---|---|
| Epoch Capabilities Index | 156.34 | 92.92 |
| SimpleBench | 60.6% | — |
| NYT Connections (extended) | 75.1% | — |
| CritPt | 16.9% | — |
| Chess Puzzles | 35% | — |
| LMArena Hard Prompts | 1461 | — |
| Mystery Game Puzzles | 35% | — |
| DTBench | 92.5% | — |
| LMCA | 50% | — |
| Surface Evolver Bench | 60% | — |
| Bench to the Future 3 | 0.14 | — |
| ForecastBench | 61.1 | — |
| WinoGrande | — | 57.1% |

## Math

- Claude Sonnet 5: 66.1 (#21)
- StarCoder 2 7B: —

| Benchmark | Claude Sonnet 5 | StarCoder 2 7B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 65.6% | — |
| FrontierMath Tier 4 | 29.3% | — |
| OTIS Mock AIME 2024-2025 | 94.7% | — |
| ProofBench | 77% | — |
| LMArena Math | 1467 | — |
| GSM8K | — | 32.7% |

## Knowledge

- Claude Sonnet 5: 55.7 (#42)
- StarCoder 2 7B: —

| Benchmark | Claude Sonnet 5 | StarCoder 2 7B |
|---|---|---|
| GPQA Diamond | 90.5% | — |
| SimpleQA Verified | 33.7% | — |
| LMArena Expert | 1491 | — |
| ARC (AI2) Challenge | — | 38.7% |
| MMLU | — | 38.8% |

## Multimodal

- Claude Sonnet 5: 42.4 (#26)
- StarCoder 2 7B: —

| Benchmark | Claude Sonnet 5 | StarCoder 2 7B |
|---|---|---|
| LMArena Vision | 1275 | — |
| Blueprint-Bench 2 | 24.9% | — |
| LMArena Document | 1466 | — |

## Multilingual

- Claude Sonnet 5: 54.0 (#55)
- StarCoder 2 7B: —

| Benchmark | Claude Sonnet 5 | StarCoder 2 7B |
|---|---|---|
| LMArena Non-English | 1431 | — |
| LMArena Chinese | 1475 | — |
| LMArena French | 1457 | — |
| LMArena German | 1448 | — |
| LMArena Japanese | 1422 | — |
| LMArena Korean | 1411 | — |
| LMArena Russian | 1452 | — |
| LMArena Spanish | 1436 | — |

## Instruction Following

- Claude Sonnet 5: 76.6 (#39)
- StarCoder 2 7B: —

| Benchmark | Claude Sonnet 5 | StarCoder 2 7B |
|---|---|---|
| LMArena Instruction Following | 1453 | — |

## Long Context

- Claude Sonnet 5: 44.8 (#53)
- StarCoder 2 7B: —

| Benchmark | Claude Sonnet 5 | StarCoder 2 7B |
|---|---|---|
| LMArena Longer Query | 1464 | — |

## Writing & Preference

- Claude Sonnet 5: 69.4 (#24)
- StarCoder 2 7B: —

| Benchmark | Claude Sonnet 5 | StarCoder 2 7B |
|---|---|---|
| LMArena Text | 1443 | — |
| LMArena Creative Writing | 1416 | — |
| EQ-Bench Creative Writing | 1794 | — |
| EQ-Bench 4 | 1236 | — |
| LMArena Multi-Turn | 1454 | — |

## FAQ

### Is Claude Sonnet 5 better than StarCoder 2 7B?

Claude Sonnet 5 has enough public results to be ranked (#26); StarCoder 2 7B does not yet, so treat this comparison as directional.

### Is Claude Sonnet 5 or StarCoder 2 7B better for coding?

Claude Sonnet 5 scores higher on coding benchmarks: 55.5 versus 34.2 in the Noometry coding category.

### How many benchmarks do Claude Sonnet 5 and StarCoder 2 7B share?

1 benchmark has published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and StarCoder 2 7B has 7.