SeedRouter API Reliable access Fast setup
Selected GPT models: 10% of official pricing. Claude, Grok and Gemini: 30%. Use the desktop setup tool for Codex CLI and Claude Code.
Connect SeedRouter to Codex
Use our exclusive configuration approach while keeping official account sign-in and all native features.
Smart routing to stable channels
SeedRouter automatically monitors channel stability and does everything possible to keep the service running normally.
Test it in the Playground
Pick a model, tune parameters, inspect the request, and test it before changing Codex or application code.
Access the latest models at ultra-low prices
Usage-based pricing for each model. See the latest price table for current rates.
Image generation and editing: for gpt-image-2.5 models and the gpt-image-2 alias, each successful call costs the higher of token usage or $0.02, not both. Failed calls are free; internal retries are not billed again. Existing free trials are unchanged.
Works with all kinds of Agent Harnesses.
Replace the Base URL and API key to connect the Agent Harness you already use.
Connect SeedRouter to Codex
Configure a custom model provider so Codex can use SeedRouter models, routing, and billing while keeping its task execution, tools, MCP, and workspace workflow.
Documentation
Connect SeedRouter to Codex
Configure a custom model provider so Codex can use SeedRouter models, routing, and billing while keeping its task execution, tools, MCP, and workspace workflow.
Harness setup
Harness guides
Manage everything from one dashboard
No need to switch between providers.
Welcome back, user.
Before you switch
Common questions
SeedRouter is designed for teams that want model choice without turning provider operations into product work.


