DeepSeek V3.1 vs Qwen3.5 35B-A3B
| Spec | DeepSeek V3.1 | Qwen3.5 35B-A3B |
|---|---|---|
| Respan Index | 18.6 (#128) | 18.5 (#130) |
| Blended price per 1M | $0.425 | $0.158 |
| Context window | 128K | 262K |
| Input / output per 1M | $0.25 / $0.95 | $0.057 / $0.459 |
| Max output | - | - |
| Input | text | text, vision |
| Released | 2025-08-21 | - |
Respan Index by category
Each category is scored 0 to 100, and how far ahead the winner is. Leads under a point are close to even.
| Category | DeepSeek V3.1 | Qwen3.5 35B-A3B |
|---|---|---|
| Coding | 4.9 DeepSeek V3.1 | 1.1 Qwen3.5 35B-A3B |
| Agents | 11.3 DeepSeek V3.1 | 16.2* Qwen3.5 35B-A3B |
| Reasoning | 23.9 DeepSeek V3.1 | 23.1 Qwen3.5 35B-A3B |
| Knowledge & language | 14.4* DeepSeek V3.1 | 14.2* Qwen3.5 35B-A3B |
| Human preference | 47.3 DeepSeek V3.1 | 46.6 Qwen3.5 35B-A3B |
* Estimated: no published scores in that category. How the Respan Index works
Benchmarks both report
DeepSeek V3.1 leads on 1 of the 1 benchmarks both report. Higher is better. Each score links to where it was published.
| Benchmark | DeepSeek V3.1 | Qwen3.5 35B-A3B |
|---|---|---|
| LMArena Elo | 1417 | 1394 |
FAQ
Is DeepSeek V3.1 better than Qwen3.5 35B-A3B?
DeepSeek V3.1 scores 18.6 on the Respan Index (#128), ahead of Qwen3.5 35B-A3B at 18.5 (#130). DeepSeek V3.1 leads on 1 of the 1 benchmarks both report.
Which is cheaper, DeepSeek V3.1 or Qwen3.5 35B-A3B?
DeepSeek V3.1 lists at $0.25 input and $0.95 output per 1M tokens; Qwen3.5 35B-A3B at $0.057 and $0.459. Qwen3.5 35B-A3B is 2.7x cheaper per token at list price.
Which has the larger context window?
DeepSeek V3.1 accepts 128K tokens and Qwen3.5 35B-A3B 262K tokens.