Seed2.1

The Seed2.1 model family is designed for real-world productivity, bringing major improvements to both general agents and code engineering, and offering two models in different sizes: Pro and Turbo.

Capabilities

Infrastructure
Streaming

Details

Provider ByteDance Seed
Creator bytedance
Family—
License—
Statusactive
Typechat
Input modalitiestext
Output modalitiestext
Open weight—
Parameters—
Architecture—
Context window—
Max input—
Max output—
Reasoning tokens—
Knowledge cutoff—
Release date—
Sourceofficial

Endpoints

Chat CompletionsPOST
Generate chat responses with messageshttps://console.volcengine.com/ark/v1/chat/completions

API

GET/v1/models/bytedance/seed2.1

Seed2.1

The Seed2.1 model family is designed for real-world productivity, bringing major improvements to both general agents and code engineering, and offering two models in different sizes: Pro and Turbo.

Changes · 3 entries
seed2.1createca7a400Nov 2, 2026, 03:02 AM
seed2.1update118451aSep 24, 2026, 07:08 AM
descriptionA next-generation agent for real-world productivity.→The Seed2.1 model family is designed for real-world produ...
seed2.1create88d97e5Jun 30, 2026, 04:49 AM