Codex cost planning
Codex Cost Calculator
Use this Codex cost calculator page when you want to estimate how a coding workflow may affect monthly usage. The important variables are task size, repository context, number of agent turns, generated output, retries, and whether your plan includes enough usage for the month.
Best use cases
- Estimating a feature build before running an agent session.
- Comparing Codex against Claude Code for a repeated workflow.
- Planning monthly usage for a small engineering team.
Codex cost inputs
- Input context: requirements, repository files, logs, tests, and review comments.
- Output volume: generated code, explanations, test files, diffs, and follow-up patches.
- Agent turns: initial attempt, failed checks, reruns, review fixes, and final cleanup.
- Monthly repetition: number of developers, coding days, and tasks per developer.
Monthly budget check
If one Codex task looks inexpensive, multiply it by the number of feature builds, bug fixes, reviews, and refactors you expect in a month. For recurring usage, compare this page with the Codex Monthly Cost Calculator before committing to a workflow.
Start here
Open the AI Coding Agent Cost Calculator, choose the Codex-style editable example, then adjust plan price, included budget, input tokens, output tokens, and tasks per month.