OpenAI ChatGPT Pro returns 23.9x its price against 13.4x for Anthropic Max 5x, so on measured ceiling OpenAI ChatGPT Pro is the better value.
| Anthropic Max 5x | OpenAI ChatGPT Pro | |
|---|---|---|
| Price | $100/mo | $100/mo |
| Agent | Claude Code | Codex |
| Ceiling | $1,339/mo | $2,387/mo |
| Multiple | 13.4x | 23.9x |
| Basis | from published cap | measured |
| Quota published | derived | unknown |
The plan allows 3,300,000 credits per 5 hours and 41,666,700 credits per week.
The plan allows an unpublished number of messages per week.
A ceiling is what the plan allows, not what you will use. If you write code an hour a day, neither plan's cap is the thing that decides this and the cheaper one wins by default. The multiple matters when you are the kind of user who hits limits.
Prices and caps here change without notice, which is why this page is regenerated from the catalogue on every deploy rather than written once. Compare the raw entries at claude-max-5x and codex-pro.