When to Choose Each Option
Clear guidance based on your specific situation and needs.
Our Recommendation
Price follows the plan, capacity follows the interface. With 20 requests per month the app is the cheapest entry: 20 USD in plan Plus, and all three core capabilities — code understanding, code generation, debugging — are covered on both surfaces. For daily automation with many sessions and long contexts the CLI is the first choice: 900 requests per month match the volume of plan Pro (200 USD) exactly. The spark variant of the model line, gpt-5.3-codex-spark, delivers the same token budget on both surfaces: 128k context, 32k output. In short: app for the road, CLI for the series — at the same price per plan.
- Choose Codex App when...
- Choose Codex CLI when...