Seed 2.1 Turbo

seedReasoningTool CallingAttachmentsStructured Output

Faster ByteDance Seed 2.1 model for multimodal reasoning and latency-sensitive agent workflows

Providers8

ReleasedJun 23, 2026

Input Modalitiestext, image, video

Output Modalitiestext

Tarsk Usecoding

Available Providers (8)

Provider	Model ID	Input Cost	Output Cost	Context	Max Output
Volcengine Ark Coding Plan	`doubao-seed-2.1-turbo`	$0/MTok	$0/MTok	256K	256K
Ofox	`volcengine/doubao-seed-2.1-turbo`	$0.35/MTok	$1.77/MTok	256K	256K
Volcengine Ark	`doubao-seed-2-1-turbo-260628`	$0.45/MTok	$2.23/MTok	256K	256K
Vercel AI Gateway	`bytedance/seed-2.1-turbo`	$0.50/MTok	$2.50/MTok	262.1K	262.1K
Kilo Gateway	`bytedance-seed/seed-2-1-turbo`	$0.50/MTok	$2.50/MTok	262.1K	235.9K
OpenRouter	`bytedance-seed/seed-2-1-turbo`	$0.50/MTok	$2.50/MTok	262.1K	235.9K
Venice AI	`seed-2-1-turbo`	$0.63/MTok	$3.13/MTok	256K	65.5K
EmpirioLabs AI	`seed-2-1-turbo`	$0.63/MTok	$3.13/MTok	256K	65.5K

Reasoning

Tool Calling

Attachments

Open Weights

Structured Output