# Claude Sonnet 5.5 vs Yi 6B

> Claude Sonnet 5.5 has enough public results to be ranked (#10); Yi 6B does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/claude-sonnet-5-5-vs-yi-6b
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- Yi 6B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude Sonnet 5.5 | Yi 6B |
|---|---|---|
| Provider | Anthropic | 01.AI |
| Noometry Index | 60.5 | — |
| Rank | 10 | — |
| Context | 1M | — |
| Input $/M | $2 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Open |

## Coding

- Claude Sonnet 5.5: 65.5 (#6)
- Yi 6B: —

| Benchmark | Claude Sonnet 5.5 | Yi 6B |
|---|---|---|
| FrontierCode | 52.1% | — |
| CursorBench | 55.5% | — |
| LMArena WebDev | 1699 | — |
| FrontierSWE | 61.9% | — |
| SciCode | 61% | — |
| ALE-Bench | 1,819 | — |

## Agentic & Tool Use

- Claude Sonnet 5.5: 44.9 (#14)
- Yi 6B: —

| Benchmark | Claude Sonnet 5.5 | Yi 6B |
|---|---|---|
| APEX-Agents | 75.5% | — |

## Reasoning

- Claude Sonnet 5.5: 52.4 (#29)
- Yi 6B: —

| Benchmark | Claude Sonnet 5.5 | Yi 6B |
|---|---|---|
| CritPt | 31.4% | — |
| Mystery Game Puzzles | 65% | — |
| BIG-Bench Hard | — | 47.2% |
| Epoch Capabilities Index | — | 104.37 |
| HellaSwag | — | 74.4% |
| WinoGrande | — | 71.3% |

## Math

- Claude Sonnet 5.5: 88.7 (#4)
- Yi 6B: —

| Benchmark | Claude Sonnet 5.5 | Yi 6B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 88.8% | — |
| FrontierMath Tier 4 | 80.5% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 100% | — |
| GSM8K | — | 44.9% |

## Knowledge

- Claude Sonnet 5.5: 66.0 (#11)
- Yi 6B: —

| Benchmark | Claude Sonnet 5.5 | Yi 6B |
|---|---|---|
| GPQA Diamond | 95.6% | — |
| SimpleQA Verified | 46.5% | — |
| ARC (AI2) Challenge | — | 50.3% |
| MMLU | — | 64% |

## Multimodal

- Claude Sonnet 5.5: 53.2 (#5)
- Yi 6B: —

| Benchmark | Claude Sonnet 5.5 | Yi 6B |
|---|---|---|
| Furniture Assembly | 75% | — |

## FAQ

### Is Claude Sonnet 5.5 better than Yi 6B?

Claude Sonnet 5.5 has enough public results to be ranked (#10); Yi 6B does not yet, so treat this comparison as directional.

### How many benchmarks do Claude Sonnet 5.5 and Yi 6B share?

0 benchmarks have published results for both models. Claude Sonnet 5.5 has 16 scored results on Noometry and Yi 6B has 7.