Short answerOpenAI Codex starts at $8/mo and resets 5-hour + weekly windows (pro tiers: reported no 5-hour limit as of oct 2026 — secondary source); Cursor starts at $8/mo and resets weekly allowance refresh. Prices checked 2026-10-14 from official pricing pages.
OpenAI Codex (ChatGPT plans)
Cursor
Cheapest paid
$8/mo*
$8/mo
Metering
Codex shares the plan allowance. Five-hour window plus weekly window (per third-party summary of OpenAI help center).
One AI usage pool shared across Cursor and Grok. Third-party models in Cursor are billed separately at API list price.
Reset
5-hour + weekly windows (Pro tiers: reported no 5-hour limit as of Oct 2026 — secondary source)
Weekly allowance refresh
Over the limit
Plus/Pro can buy credits or use an API key (secondary source).
Top-offs, or wait for the weekly refresh. Spending caps available for third-party models.