Qwen3.5 397B A17B vs Seed 1.6 Flash
Alibaba vs ByteDance — benchmarks, pricing, and capabilities side by side.
- •Seed 1.6 Flash is cheaper ($0.08 vs $0.39 per 1M input)
| Qwen3.5 397B A17B | Seed 1.6 Flash | |
|---|---|---|
| Intelligence index | 89.3 | — |
| Developer | Alibaba | ByteDance |
| Type | Multimodal | Multimodal |
| Access | Open weights | API only |
| Context window | 262,144 tokens | 262,144 tokens |
| Input price | $0.39 / 1M | $0.08 / 1M |
| Output price | $2.34 / 1M | $0.30 / 1M |
| Speed | 53 tok/s | — |
| Released | February 16, 2026 | December 23, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image, Video | Image, Text, Video |
| Output modalities | Text | Text |