Qwen3.5-Plus vs Sonar
Side-by-side specs, pricing and capabilities. Both models run on Clade under one subscription, so you can switch between them in the same conversation.
Qwen3.5-Plus comes from Alibaba and Sonar from Perplexity. The practical difference for most people is context, price, and which input types each one accepts.
Qwen3.5-Plus holds more in a single conversation — 1M tokens against 128K — which matters for long documents and large codebases.
Qwen3.5-Plus is the cheaper of the two on input tokens at $0.40 / 1M tokens.
| Specification | Qwen3.5-Plus | Sonar |
|---|---|---|
| Provider | Alibaba | Perplexity |
| Model ID | qwen3.5-plus | sonar |
| Context window | 1M | 128K |
| Max output | 64K | — |
| Input price | $0.40 / 1M tokens | $1.00 / 1M tokens |
| Output price | $2.40 / 1M tokens | $1.00 / 1M tokens |
| Knowledge cutoff | — | — |
| Input types | text, image, video | text, image, file |
| Output types | text | text |
| Plan | All paid plans | All paid plans |
Which should you use?
Pick Qwen3.5-Plus when…
- You need the larger context window — 1M against 128K.
- Cost matters: input runs at $0.40 / 1M tokens versus $1.00 / 1M tokens.
- You want longer single responses — up to 64K output tokens.
- You need video input, which the other model does not accept.
Related comparisons
Try both on Clade
You do not have to choose. One Clade subscription gives you Qwen3.5-Plus, Sonar, and every other model on the platform.