Qwen3.5 Flash vs DeepSeek V4 Flash 0731 (Arkanecloud)
Both have similar output pricing, while DeepSeek V4 Flash 0731 (Arkanecloud) offers a larger context window. Choose Qwen3.5 Flash or DeepSeek V4 Flash 0731 (Arkanecloud) based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Qwen3.5 Flash | DeepSeek V4 Flash 0731 (Arkanecloud) |
|---|---|---|
| Provider | Alibaba | Eden AI |
| Input / 1M tokens | $0.10 | $0.20 |
| Output / 1M tokens | $0.40 | $0.40 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | No | Yes |
| Released | Feb 2026 | Jul 2026 |
| LMArena (Chatbot Arena) Elo score | 1397 | — |
| GPQA Diamond score | 82.3 | — |
| FrontierMath score | 6.2 | — |
| Epoch Capabilities Index score | 144 | — |
| LMArena WebDev Elo score | 1244 | — |
FAQ
Is Qwen3.5 Flash or DeepSeek V4 Flash 0731 (Arkanecloud) cheaper?
Qwen3.5 Flash and DeepSeek V4 Flash 0731 (Arkanecloud) have comparable output pricing.
Which has the larger context window, Qwen3.5 Flash or DeepSeek V4 Flash 0731 (Arkanecloud)?
DeepSeek V4 Flash 0731 (Arkanecloud) has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.