Qwen3.5 Plus vs Sonar Reasoning Pro
Alibaba vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •Qwen3.5 Plus is cheaper ($0.26 vs $2.00 per 1M input)
- •Qwen3.5 Plus has a larger context window (1M)
| Qwen3.5 Plus | Sonar Reasoning Pro | |
|---|---|---|
| Intelligence index | — | 95.7 |
| Developer | Alibaba | Perplexity |
| Type | Multimodal | Multimodal |
| Access | API only | API only |
| Context window | 1,000,000 tokens | 128,000 tokens |
| Input price | $0.26 / 1M | $2.00 / 1M |
| Output price | $1.56 / 1M | $8.00 / 1M |
| Speed | — | — |
| Released | February 16, 2026 | March 7, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image, Video | Text, Image |
| Output modalities | Text | Text |