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); Replit starts at $20/mo and resets monthly (assumed from monthly allowance; not stated explicitly). Prices checked 2026-10-14 from official pricing pages.
OpenAI Codex (ChatGPT plans)
Replit
Cheapest paid
$8/mo*
$20/mo
Metering
Codex shares the plan allowance. Five-hour window plus weekly window (per third-party summary of OpenAI help center).
Free Mode chat hours plus a dollar allowance for more powerful models.
Reset
5-hour + weekly windows (Pro tiers: reported no 5-hour limit as of Oct 2026 — secondary source)
Monthly (assumed from monthly allowance; not stated explicitly)
Over the limit
Plus/Pro can buy credits or use an API key (secondary source).
Limited Codex (official). Price from secondary source.
Plus
$20*
Expanded Codex usage (official). Price from secondary source.
Pro (3 tiers)
$100*
Official: 'Your choice of 3 usage tiers'. $100/$200/$500 from secondary source.
Replit plans
Plan
Per month
Notes
Core
$20
$18/mo billed annually. Includes $20 toward more powerful models; up to 60 projects on Free Mode.
Pro
$100
$90/mo billed annually. Everything in Core plus $100 toward the most powerful models.
Questions
Is OpenAI Codex cheaper than Replit?
OpenAI Codex has the cheaper entry paid plan: $8 vs $20 per month (checked 2026-10-14).
How do OpenAI Codex and Replit limits reset?
OpenAI Codex: 5-hour + weekly windows (Pro tiers: reported no 5-hour limit as of Oct 2026 — secondary source). Replit: Monthly (assumed from monthly allowance; not stated explicitly).
