Qwen-Plus vs Qwen3.5 9B Base
Qwen-Plus is cheaper on output tokens, while Qwen-Plus offers a larger context window. Choose Qwen-Plus or Qwen3.5 9B Base based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Qwen-Plus | Qwen3.5 9B Base |
|---|---|---|
| Provider | Qwen | Thinking Machines |
| Input / 1M tokens | $0.26 | $0.30 |
| Output / 1M tokens | $0.78 | $0.81 |
| Context window | 1M | 66K |
| Parameters | — | — |
| Open weights | — | Yes |
| Released | — | Feb 2026 |
| LMArena (Chatbot Arena) Elo score | 1326 | — |
| GPQA Diamond score | 48.1 | — |
| FrontierMath score | 1.7 | — |
FAQ
Is Qwen-Plus or Qwen3.5 9B Base cheaper?
Qwen-Plus is cheaper on output tokens ($0.78 vs $0.81 per 1M).
Which has the larger context window, Qwen-Plus or Qwen3.5 9B Base?
Qwen-Plus 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.