How Much UsageAll guides

Claude Code vs Codex: compare your available capacity

Compare Claude and Codex readings without treating percentages as equal amounts of work or assuming one plan always lasts longer.

Updated September 6, 2026

The useful question before a task is often simple: which account has room for the work I want to do? A single percentage cannot answer that across different providers and plans.

Start with the account’s own limits

Keep Claude and Codex separate. Each can report several windows, and additional model or feature limits may affect the task you have in mind. For current provider guidance, see Claude’s Usage settings guide and OpenAI’s Codex usage guidance.

Why a higher percentage is not a winner

Sixty percent on one account is a share of that account’s allowance. It does not promise more messages, tokens or working time than forty percent on another plan. Task size and model choice also matter.

Make a practical choice

  1. Refresh your connected accounts when you are ready to compare.
  2. Review the suggestion for each provider and the limits behind it.
  3. Keep a chosen account saved for later if your next task needs it.
  4. Switch accounts yourself in the provider’s app or CLI.

How Much Usage brings connected Claude and Codex accounts together. One account is free; unlimited connected accounts cost $15 once. For Claude alone, How Much Claude is $9 once, with one account free. These purchases do not increase your provider allowances.

You can request another provider through the product feedback link. Requests help shape priorities; they are not a promise of future support.

Frequently asked questions

Does Claude or Codex give more usage?
There is no reliable conversion between their remaining percentages. Compare your actual tasks and each account’s applicable limits.
Can I track Claude and Codex together?
Yes. How Much Usage puts connected accounts together while keeping provider suggestions and allowances separate.