Qwen3.5 Flash vs Qwen Long 10M
Qwen3.5 Flash is cheaper on output tokens, while Qwen Long 10M offers a larger context window. Choose Qwen3.5 Flash or Qwen Long 10M based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Qwen3.5 Flash | Qwen Long 10M |
|---|---|---|
| Provider | Alibaba | NanoGPT |
| Input / 1M tokens | $0.10 | $0.10 |
| Output / 1M tokens | $0.40 | $0.41 |
| Context window | 1M | 10M |
| Parameters | — | — |
| Open weights | No | No |
| Released | Feb 2026 | Jan 2025 |
| GPQA Diamond score | 82.3 | — |
| FrontierMath score | 6.2 | — |
| Epoch Capabilities Index score | 144 | — |
| LMArena (Chatbot Arena) Elo score | 1397 | — |
| LMArena WebDev Elo score | 1243 | — |
FAQ
Is Qwen3.5 Flash or Qwen Long 10M cheaper?
Qwen3.5 Flash is cheaper on output tokens ($0.40 vs $0.41 per 1M).
Which has the larger context window, Qwen3.5 Flash or Qwen Long 10M?
Qwen Long 10M has the larger context window (10M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.