# Claude 2 vs Yi-1.5-34B

> Yi-1.5-34B is the stronger model overall, scoring 30.2 to 24.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-vs-yi-1-5-34b
- Last updated: 2026-10-10
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Claude 2 scores higher in 1 category and Yi-1.5-34B in 2 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in math, where Yi-1.5-34B leads 25.3 to 8.7.
- The biggest single-benchmark swing is MATH Level 5: 11.7% for Claude 2 and 25.5% for Yi-1.5-34B.
- Yi-1.5-34B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 2 | Yi-1.5-34B |
|---|---|---|
| Provider | Anthropic | 01.AI |
| Noometry Index | 24.7 | 30.2 |
| Rank | 342 | 286 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Claude 2: —
- Yi-1.5-34B: 31.9 (#267)

| Benchmark | Claude 2 | Yi-1.5-34B |
|---|---|---|
| BigCodeBench Instruct | — | 33.9% |
| LMArena Coding | — | 1169 |
| BigCodeBench Complete | — | 43.8% |
| HumanEval+ | 61.6% | — |

## Reasoning

- Claude 2: 20.8 (#213)
- Yi-1.5-34B: 21.5 (#195)

| Benchmark | Claude 2 | Yi-1.5-34B |
|---|---|---|
| LMArena Hard Prompts | — | 1160 |
| DTBench | 51.9% | — |
| Epoch Capabilities Index | 120.08 | — |

## Math

- Claude 2: 8.7 (#314)
- Yi-1.5-34B: 25.3 (#248)

| Benchmark | Claude 2 | Yi-1.5-34B |
|---|---|---|
| MATH Level 5 | 11.7% | 25.5% |
| OTIS Mock AIME 2024-2025 | 2.5% | — |
| LMArena Math | — | 1182 |

## Knowledge

- Claude 2: 17.0 (#282)
- Yi-1.5-34B: 14.8 (#290)

| Benchmark | Claude 2 | Yi-1.5-34B |
|---|---|---|
| GPQA Diamond | 34.7% | 32% |
| LMArena Expert | — | 1144 |
| MMLU | 78.5% | — |
| TriviaQA | 87.5% | — |

## Multilingual

- Claude 2: —
- Yi-1.5-34B: 32.5 (#251)

| Benchmark | Claude 2 | Yi-1.5-34B |
|---|---|---|
| LMArena Non-English | — | 1121 |
| LMArena Chinese | — | 1213 |
| LMArena French | — | 1155 |
| LMArena German | — | 1111 |
| LMArena Japanese | — | 1021 |
| LMArena Korean | — | 1005 |
| LMArena Russian | — | 1091 |
| LMArena Spanish | — | 1120 |

## Instruction Following

- Claude 2: —
- Yi-1.5-34B: 59.4 (#252)

| Benchmark | Claude 2 | Yi-1.5-34B |
|---|---|---|
| LMArena Instruction Following | — | 1139 |

## Long Context

- Claude 2: —
- Yi-1.5-34B: 34.6 (#243)

| Benchmark | Claude 2 | Yi-1.5-34B |
|---|---|---|
| LMArena Longer Query | — | 1144 |

## Writing & Preference

- Claude 2: —
- Yi-1.5-34B: 37.6 (#252)

| Benchmark | Claude 2 | Yi-1.5-34B |
|---|---|---|
| LMArena Text | — | 1173 |
| LMArena Creative Writing | — | 1135 |
| LMArena Multi-Turn | — | 1153 |

## FAQ

### Is Claude 2 better than Yi-1.5-34B?

Yi-1.5-34B is the stronger model overall, scoring 30.2 to 24.7 on the Noometry Index.

### How many benchmarks do Claude 2 and Yi-1.5-34B share?

2 benchmarks have published results for both models. Claude 2 has 8 scored results on Noometry and Yi-1.5-34B has 21.