Routing guide
How to choose a Codex routing tier
Use Stable as a balanced default, Economy when cost sensitivity is high, and Official when an official-provider route is available and specifically valuable for the task.
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A practical decision guide for Economy, Stable, Official, and optional automatic failover.
Start from task sensitivity
Ask what happens if the response is slower, if a route needs to change, or if this task costs more than usual. Those answers determine the tier more reliably than the size of the repository.
Exploration
Economy is often enough for questions, discovery, and disposable iterations.
Daily development
Stable is the balanced choice for ongoing coding sessions.
Route-specific requirement
Official is appropriate when the provider route itself matters.
Understand automatic failover
When enabled, automatic failover can move a request to another eligible route before the response begins. It favors continuity, but it can also change the route economics of that request.
Review real usage
Use the dashboard trend, response time, and cost records to adjust the default tier from evidence rather than expectation.