Seed 1.6 Flash

seed Reasoning Tool Calling Attachments Structured Output

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...

Providers 1

Released Dec 23, 2025

Input Modalities image, text, video

Output Modalities text

Tarsk Use coding

Available Providers (1)

Provider	Model ID	Input Cost	Output Cost	Context	Max Output	Docs
OpenRouter	`bytedance-seed/seed-1.6-flash`	$0.07/MTok	$0.30/MTok	262.1K	32.8K

Capabilities

Reasoning

Tool Calling

Attachments

Open Weights

Structured Output