ChatGPT Pro 100 usage limits
$100/mo · Last change Same 14 Oct 2026 · Last updated
ChatGPT Pro 100 costs $100/mo. Five-hour limit: None currently in Work and Codex. Included allowance: Yes (no figure published). Most recent change (14 Oct 2026): GPT-5.5 retired from Codex for ChatGPT sign-ins.
| Five-hour limit | None currently in Work and Codex |
| Included allowance | Yes (no figure published) |
| Ultrafast | Not included |
Fast mode uses allowance at 2.5x the Standard rate.
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ChatGPT Pro 100 limits: FAQ
What are the ChatGPT Pro 100 usage limits?
As of 19 Oct 2026: Five-hour limit: None currently in Work and Codex. Included allowance: Yes (no figure published). Ultrafast: Not included.
How much does ChatGPT Pro 100 cost?
$100/mo (per the vendor's pricing page, checked 19 Oct 2026).
When did ChatGPT Pro 100 limits last change?
On 14 Oct 2026: GPT-5.5 retired from Codex for ChatGPT sign-ins. LimitWatch classifies it as a neutral change. Now: GPT-5.5 removed; GPT-6.1 Sol recommended on paid plans.
How often have ChatGPT Pro 100 limits changed?
LimitWatch has logged 6 dated changes affecting ChatGPT Pro 100 since 2 Apr 2026: 2 increases, 1 cuts, and 3 other changes.
Anything else to know about ChatGPT Pro 100 limits?
Fast mode uses allowance at 2.5x the Standard rate.
Related plans: ChatGPT Plus (Codex) · ChatGPT Pro 200 · ChatGPT Pro 500 · All OpenAI changes
Change history (6)
GPT-5.5 retired from Codex for ChatGPT sign-ins
GPT-5.5 selectable in Codex with ChatGPT sign-in.GPT-5.5 removed; GPT-6.1 Sol recommended on paid plans.Details and source
From 19:00 UTC on Oct 14, GPT-5.5 is no longer available in Codex when signed in with ChatGPT. Paid plans should switch to GPT-6.1 Sol; API-key Codex sessions are unaffected. Update saved settings, configs and scripts that select gpt-5.5.
Vendor’s framing: “The OpenAI API and Codex sessions authenticated with an API key aren’t affected.”
Source: ChatGPT & Codex changelog · Announced: 2026-09-14 (notice) and 2026-10-14, ChatGPT & Codex changelog · Plans: ChatGPT Plus (Codex), ChatGPT Pro 100, ChatGPT Pro 200Codex five-hour limit ‘restored’ (didn’t hold for Plus)
No five-hour limit.Five-hour limit restored as announced; whether it landed for Plus is not established.Details and source
OpenAI said the five-hour limit would return on Jul 30 with a full usage reset; on Aug 25 the same exec said he had postponed it.
Vendor’s framing: “Tomorrow, we’ll also restore the five-hour limit that we temporarily paused while investigating”
Source: Digital Applied ledger (row 18; original report: Codex Runway) · Announced: 2026-07-29, Tibo Sottiaux on X · Plans: ChatGPT Plus (Codex), ChatGPT Pro 100, ChatGPT Pro 200Codex five-hour limit temporarily removed (launch week)
Five-hour limit enforced alongside weekly limit.No five-hour limit (temporary).Details and source
During GPT-5.6 Sol launch week the rolling five-hour limit was removed for Plus, Business and Pro; weekly limits unchanged.
Vendor’s framing: A temporary removal during launch week
Source: Digital Applied ledger (row 17; original report: Morph) · Announced: 2026-07-12, Tibo Sottiaux on X · Plans: ChatGPT Plus (Codex), ChatGPT Pro 100, ChatGPT Pro 200Codex adds banked rate-limit resets
No user-controlled way to clear a rate limit.One banked reset per user at launch.Details and source
Rate-limit reset banking added: one free reset per user at launch, redeemable against a hit limit.
Vendor’s framing: A new capability
Source: Digital Applied ledger (row 16; original report: Ofox) · Announced: 2026-06-11, Codex changelog · Plans: ChatGPT Plus (Codex), ChatGPT Pro 100, ChatGPT Pro 200ChatGPT Pro $100: Codex usage drops from 10x to 5x Plus
10x ChatGPT Plus Codex usage (launch promo).5x ChatGPT Plus Codex usage.Details and source
The launch promotion (10x Plus Codex usage through May 31) ended; the standard 5x multiplier applies.
Vendor’s framing: Scheduled end of a launch promotion
Source: The Next Web · Announced: 2026-04-09 (end date stated at launch) · Plans: ChatGPT Pro 100Codex credits move from per-message to per-token pricing
Credits charged per message or per PR as approximate averages.Credits charged per 1M input, cached input and output tokens.Details and source
Codex credits for Plus, Pro, Business and new Enterprise switched to a token-based rate card (input, cached input, output). No conversion published.
Vendor’s framing: “we updated Codex pricing to align with API token usage, instead of per-message pricing”
Source: Digital Applied ledger (row 12; original: OpenAI Help Center Codex rate card) · Announced: On or before 2026-04-02, OpenAI Help Center · Plans: ChatGPT Plus (Codex), ChatGPT Pro 100, ChatGPT Pro 200