Qwen3.5 vs Sonar Reasoning Pro
Alibaba vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •Qwen3.5 has a larger context window (262K)
| Qwen3.5 | Sonar Reasoning Pro | |
|---|---|---|
| Intelligence index | — | 95.7 |
| Developer | Alibaba | Perplexity |
| Type | Multimodal | Multimodal |
| Access | Open weights | API only |
| Context window | 262,144 tokens | 128,000 tokens |
| Input price | — | $2.00 / 1M |
| Output price | — | $8.00 / 1M |
| Speed | — | — |
| Released | February 16, 2026 | March 7, 2025 |
| Parameters | 397B (17B active) | — |
| Input modalities | Text, Image, Video | Text, Image |
| Output modalities | Text | Text |