Model comparison
Claude 2.1 vs Qwen3.5 35B-A3B
Qwen3.5 35B-A3B is the stronger model overall, scoring 42.0 to 25.2 on the Noometry Index.
Last verified . 4 shared benchmarks.
Alibaba (Qwen)Summary
- They share 4 benchmarks with published results for both. Claude 2.1 scores higher in 0 categories and Qwen3.5 35B-A3B in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Qwen3.5 35B-A3B leads 47.8 to 15.4.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 1.9% for Claude 2.1 and 70% for Qwen3.5 35B-A3B.
- Qwen3.5 35B-A3B has downloadable open weights; the other is API-only.
Side by side
| Claude 2.1 | Qwen3.5 35B-A3B | |
|---|---|---|
| Provider | Anthropic | Alibaba (Qwen) |
| Noometry Index | 25.2 | 42.0 |
| Released | 2023-11-21 | 2026-02-01 |
| Weights | Proprietary | Open |
| Context window | — | 262K |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.25 |
| Output $ / M tokens | — | $2 |
| Results tracked | 7 | 28 |
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Category by category
Coding Qwen3.5 35B-A3B leads
Claude 2.1: 26.2 (#327), Qwen3.5 35B-A3B: 33.8 (#251)
| Benchmark | Claude 2.1 | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena WebDev | — | 1254 |
| SciCode | — | 29.3% |
| WeirdML | 7.1% | — |
| LMArena Coding | — | 1410 |
Reasoning Qwen3.5 35B-A3B leads
Claude 2.1: 21.4 (#221), Qwen3.5 35B-A3B: 24.6 (#161)
| Benchmark | Claude 2.1 | Qwen3.5 35B-A3B |
|---|---|---|
| DTBench | 51% | 80% |
| Epoch Capabilities Index | 119.27 | 142.52 |
| CritPt | — | 0.6% |
| Chess Puzzles | — | 10% |
| LMArena Hard Prompts | — | 1400 |
| LMCA | — | 29.5% |
| ForecastBench | 54.2 | — |
Math Qwen3.5 35B-A3B leads
Claude 2.1: 10.2 (#315), Qwen3.5 35B-A3B: 39.9 (#97)
| Benchmark | Claude 2.1 | Qwen3.5 35B-A3B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | 70% |
| MathArena Final-Answer Competitions | — | 56% |
| LMArena Math | — | 1404 |
Knowledge Qwen3.5 35B-A3B leads
Claude 2.1: 15.4 (#292), Qwen3.5 35B-A3B: 47.8 (#79)
| Benchmark | Claude 2.1 | Qwen3.5 35B-A3B |
|---|---|---|
| GPQA Diamond | 33% | 83.5% |
| Vectara Hallucination Rate | — | 10.5% |
| LMArena Expert | — | 1408 |
| MMLU | 73.5% | — |
Multilingual Not comparable
Claude 2.1: —, Qwen3.5 35B-A3B: 50.0 (#127)
| Benchmark | Claude 2.1 | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Non-English | — | 1378 |
| LMArena Chinese | — | 1457 |
| LMArena French | — | 1412 |
| LMArena German | — | 1367 |
| LMArena Japanese | — | 1325 |
| LMArena Korean | — | 1356 |
| LMArena Russian | — | 1376 |
| LMArena Spanish | — | 1392 |
Instruction Following Not comparable
Claude 2.1: —, Qwen3.5 35B-A3B: 72.8 (#128)
| Benchmark | Claude 2.1 | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Instruction Following | — | 1379 |
Long Context Not comparable
Claude 2.1: —, Qwen3.5 35B-A3B: 42.4 (#127)
| Benchmark | Claude 2.1 | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Longer Query | — | 1389 |
Writing & Preference Not comparable
Claude 2.1: —, Qwen3.5 35B-A3B: 57.9 (#124)
| Benchmark | Claude 2.1 | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Text | — | 1395 |
| LMArena Creative Writing | — | 1346 |
| LMArena Multi-Turn | — | 1390 |
Frequently asked questions
Is Claude 2.1 better than Qwen3.5 35B-A3B?
Qwen3.5 35B-A3B is the stronger model overall, scoring 42.0 to 25.2 on the Noometry Index.
Is Claude 2.1 or Qwen3.5 35B-A3B better for coding?
Qwen3.5 35B-A3B scores higher on coding benchmarks: 33.8 versus 26.2 in the Noometry coding category.
How many benchmarks do Claude 2.1 and Qwen3.5 35B-A3B share?
4 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and Qwen3.5 35B-A3B has 28.