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 Z.ai: GLM 4.6 (exacto)
ByteDance Seed: Seed 1.6 Flash wins on 4 of 6 axes — pricing and capability skew in its favour for most workloads.
Compared with GLM-4.5, this generation brings several key improvements: Longer context window: The context window has been expanded from 128K to 200K tokens, enabling the model to handle more complex agentic tasks. Superior coding performa…
Model details →Side-by-side comparison
| Capability | ByteDance Seed: Seed 1.6 Flash | Z.ai: GLM 4.6 (exacto) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 262K | 205K | 🏆 ByteDance Seed: Seed 1.6 Flash |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.07 | $0.44 | 🏆 ByteDance Seed: Seed 1.6 Flash |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.30 | $1.76 | 🏆 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 | — | 🏆 ByteDance Seed: Seed 1.6 Flash |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is ByteDance Seed: Seed 1.6 Flash better than Z.ai: GLM 4.6 (exacto)?
ByteDance Seed: Seed 1.6 Flash wins on 4 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 Z.ai: GLM 4.6 (exacto)?
Input: $0.07 vs $0.44 per 1M tokens. Output: $0.30 vs $1.76 per 1M tokens.
What context windows do ByteDance Seed: Seed 1.6 Flash and Z.ai: GLM 4.6 (exacto) support?
ByteDance Seed: Seed 1.6 Flash supports up to 262K tokens. Z.ai: GLM 4.6 (exacto) supports up to 205K tokens.
Do both ByteDance Seed: Seed 1.6 Flash and Z.ai: GLM 4.6 (exacto) support tool calling?
ByteDance Seed: Seed 1.6 Flash: yes. Z.ai: GLM 4.6 (exacto): yes.