Seed 1.6 Flash is an ultra-fast multimodal deep thinking model by ByteDance Seed, supporting both text and visual understanding. It features a 256k context window and can generate outputs of up to 16k tokens.
Model details →ByteDance Seed: Seed 1.6 Flash vs Qwen: Qwen3.5-35B-A3B
ByteDance Seed: Seed 1.6 Flash wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
The Qwen3.5 Series 35B-A3B is a native vision-language model designed with a hybrid architecture that integrates linear attention mechanisms and a sparse mixture-of-experts model, achieving higher inference efficiency. Its overall performan…
Model details →Side-by-side comparison
| Capability | ByteDance Seed: Seed 1.6 Flash | Qwen: Qwen3.5-35B-A3B | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 262K | 262K | Tie |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.07 | $0.16 | 🏆 ByteDance Seed: Seed 1.6 Flash |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.30 | $1.30 | 🏆 ByteDance Seed: Seed 1.6 Flash |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is ByteDance Seed: Seed 1.6 Flash better than Qwen: Qwen3.5-35B-A3B?
ByteDance Seed: Seed 1.6 Flash wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between ByteDance Seed: Seed 1.6 Flash and Qwen: Qwen3.5-35B-A3B?
Input: $0.07 vs $0.16 per 1M tokens. Output: $0.30 vs $1.30 per 1M tokens.
What context windows do ByteDance Seed: Seed 1.6 Flash and Qwen: Qwen3.5-35B-A3B support?
ByteDance Seed: Seed 1.6 Flash supports up to 262K tokens. Qwen: Qwen3.5-35B-A3B supports up to 262K tokens.
Do both ByteDance Seed: Seed 1.6 Flash and Qwen: Qwen3.5-35B-A3B support tool calling?
ByteDance Seed: Seed 1.6 Flash: yes. Qwen: Qwen3.5-35B-A3B: yes.