Seed 2.1 Turbo API
About
Build advanced reasoning agents with Seed 2.1 Turbo, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.50/1M input and $2.50/1M output tokens, native tool calling support. Access Seed 2.1 Turbo via the OpenRouter API with up to 236K output tokens.
Capabilities
Input Modalities
textimagevideo
Output Modalities
text
Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
262K
Tokens
Input Limit
262K
Tokens
Max Output
236K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.50
Output
$2.50
Frequently Asked Questions
Seed 2.1 Turbo by OpenRouter costs $0.50 per 1M input tokens and $2.50 per 1M output tokens.
Model Details
ID
bytedance-seed/seed-2-1-turbo
Provider
OpenRouterFamily
seed
Release Date
Aug 12, 2026
Knowledge Cutoff
N/A
API Integration
NPM Package
@openrouter/ai-sdk-provider
Environment Variables
OPENROUTER_API_KEY
API Base URL
https://openrouter.ai/api/v1