# Claude 2 vs Qwen1.5 4b Chat

> Qwen1.5 4b Chat is the stronger model overall, scoring 28.3 to 24.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-vs-qwen1-5-4b-chat
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Qwen1.5 4b Chat leads 27.9 to 8.7.
- Qwen1.5 4b Chat has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 2 | Qwen1.5 4b Chat |
|---|---|---|
| Provider | Anthropic | Alibaba (Qwen) |
| Noometry Index | 24.7 | 28.3 |
| Rank | 342 | 319 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Claude 2: —
- Qwen1.5 4b Chat: 28.6 (#305)

| Benchmark | Claude 2 | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Coding | — | 999 |
| HumanEval+ | 61.6% | — |

## Reasoning

- Claude 2: 20.8 (#213)
- Qwen1.5 4b Chat: 17.7 (#277)

| Benchmark | Claude 2 | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Hard Prompts | — | 976 |
| DTBench | 51.9% | — |
| Epoch Capabilities Index | 120.08 | — |

## Math

- Claude 2: 8.7 (#314)
- Qwen1.5 4b Chat: 27.9 (#233)

| Benchmark | Claude 2 | Qwen1.5 4b Chat |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | — |
| LMArena Math | — | 1026 |
| MATH Level 5 | 11.7% | — |

## Knowledge

- Claude 2: 17.0 (#282)
- Qwen1.5 4b Chat: 26.2 (#252)

| Benchmark | Claude 2 | Qwen1.5 4b Chat |
|---|---|---|
| GPQA Diamond | 34.7% | — |
| LMArena Expert | — | 980 |
| MMLU | 78.5% | — |
| TriviaQA | 87.5% | — |

## Multilingual

- Claude 2: —
- Qwen1.5 4b Chat: 24.2 (#285)

| Benchmark | Claude 2 | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Non-English | — | 979 |
| LMArena Chinese | — | 1024 |
| LMArena German | — | 902 |
| LMArena Russian | — | 952 |

## Instruction Following

- Claude 2: —
- Qwen1.5 4b Chat: 49.3 (#295)

| Benchmark | Claude 2 | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Instruction Following | — | 979 |

## Long Context

- Claude 2: —
- Qwen1.5 4b Chat: 30.1 (#285)

| Benchmark | Claude 2 | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Longer Query | — | 988 |

## Writing & Preference

- Claude 2: —
- Qwen1.5 4b Chat: 23.9 (#304)

| Benchmark | Claude 2 | Qwen1.5 4b Chat |
|---|---|---|
| LMArena Text | — | 997 |
| LMArena Creative Writing | — | 969 |
| LMArena Multi-Turn | — | 977 |

## FAQ

### Is Claude 2 better than Qwen1.5 4b Chat?

Qwen1.5 4b Chat is the stronger model overall, scoring 28.3 to 24.7 on the Noometry Index.

### How many benchmarks do Claude 2 and Qwen1.5 4b Chat share?

0 benchmarks have published results for both models. Claude 2 has 8 scored results on Noometry and Qwen1.5 4b Chat has 13.