Doubao Seed 2.0 Code Preview

seed Reasoning Tool Calling Attachments Structured Output

ByteDance Seed coding model for multimodal software engineering and long-running agents

Providers 2

Released Feb 14, 2026

Input Modalities text, image, video

Output Modalities text

Tarsk Use coding

Available Providers (2)

Provider	Model ID	Input Cost	Output Cost	Context	Max Output	Docs
AIHubMix	`doubao-seed-2-0-code-preview`	$0.48/MTok	$2.41/MTok	256K	128K
NanoGPT	`doubao-seed-2-0-code-preview-260215`	$0.78/MTok	$3.89/MTok	256K	128K

Reasoning

Tool Calling

Attachments

Open Weights

Structured Output