ChatGPT Pro 500 limits

OpenAI publishes message ranges per 5 hours for Codex on Plus. Pro tiers only get multipliers and an unpublished weekly allowance.

$500/moper month, launched 29 Sep 2026Medium confidence

Higher limits than Pro 200; no number published.

Official limit statement, summarised from OpenAI Help: ChatGPT Pro.

Price: $500/mo
Billing: per month, launched 29 Sep 2026
Window: weekly allowance
Overflow: Not published. Overflow price not published.

Forecast

We can't forecast this from public data

ChatGPT / Codex (OpenAI) publishes no absolute limits for ChatGPT Pro 500. To forecast it, open the calculator, load a typical week and enter one reading from your own meter: “Day X of my plan used Y% of my weekly meter”.

Calibrate ChatGPT Pro 500

Sources

OpenAI Help: ChatGPT Pro officialchecked 2026-10-20
planlimits.org (Pro 200 allowance change) independentchecked 2026-10-20

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