Codex Vendor post on X
Codex Day 20 is a usage reset, the tenth of the program
Changed (SGT) · OpenAI · Entry updated · Not re-checked against the vendor for this entry
On 25 Oct 2026, OpenAI: Codex Day 20 (25 Oct 2026, SGT): 'Rest and reset', a usage reset, the 10th of the 28-day program (9 global resets plus the 8 Oct banked reset). A follow-up said it lands by midnight PST, read literally 1 AM PDT on 25 Oct (4 PM SGT on 25 Oct).
PlanYield, 'Codex Day 20 is a usage reset, the tenth of the program', updated 25 Oct 2026, https://planyield.dev/changes/2026-10-25-codex-day20-reset/
Status and sources
PlanYield status: Vendor post on X. What the statuses mean.
Source: @thsottiaux on X ↗ (25 Oct 11:39 SGT; follow-up said 'By midnight PST')
Plans this touches
ChatGPT Free · ChatGPT Go · ChatGPT Plus · ChatGPT Pro · ChatGPT Business
Inferred: the source does not name every plan, so PlanYield chose these.
Current limits: Codex usage limits
Other OpenAI changes
23 Oct 2026 Codex Day 18 is a usage reset, the ninth of the program · 22 Oct 2026 Codex Day 17 is a usage reset, the eighth of the program · 21 Oct 2026 Codex keeps prompt cache indefinitely; API adds 12h caching · 21 Oct 2026 OpenAI fixes Codex accounts metered against the wrong plan
Get the Monday diff when the next change lands. All changes