Tibo’s 28-day challenge

A challenge Tibo (@thsottiaux) started in a public post on X, Oct 4, 2026 20:33 UTC; this page tracks the Codex resets recorded so far, day by day. The post is Tibo’s own, and this site is not affiliated with OpenAI or Tibo. His exact words, which are the only source of the rules:

“Over the next 28 days, each day we’ll either ship one thing that is a clear improvement and relevant for most codex/work users or ship a full reset. Let the improvements begin.”

Read the post on X ↗

Day 27 of 28

So far, this site has recorded 8 resets and 1 banked reset inside the window. The counts update whenever a new reset is recorded.

Day by day

Day 1 Oct 5 No reset recorded

Day 2 Oct 6 Reset record

Day 3 Oct 7 Banked record

Day 4 Oct 8 No reset recorded

Day 5 Oct 9 No reset recorded

Day 6 Oct 10 Reset record

Day 7 Oct 11 No reset recorded

Day 8 Oct 12 Reset record

Day 9 Oct 13 No reset recorded

Day 10 Oct 14 No reset recorded

Day 11 Oct 15 No reset recorded

Day 12 Oct 16 No reset recorded

Day 13 Oct 17 Reset record

Day 14 Oct 18 No reset recorded

Day 15 Oct 19 No reset recorded

Day 16 Oct 20 No reset recorded

Day 17 Oct 21 No reset recorded

Day 18 Oct 22 Reset record

Day 19 Oct 23 No reset recorded

Day 20 Oct 24 No reset recorded

Day 21 Oct 25 Reset record

Day 22 Oct 26 No reset recorded

Day 23 Oct 27 Reset record

Day 24 Oct 28 No reset recorded

Day 25 Oct 29 No reset recorded

Day 26 Oct 30 Reset record

Day 27 Oct 31 No reset recorded

Day 28 Nov 1

How this is counted

Days are America/Los_Angeles (Pacific) calendar days: Day 1 is Oct 5, 2026 and Day 28 is Nov 1. A post made just after midnight UTC can still belong to the previous Pacific day.
Counts come from the resets this site has recorded from public announcements, so a very recent one may not appear yet. Banked resets are shown separately from regular ones.
The challenge also mentions shipping an improvement on days without a reset. This site does not track improvements, so a day with no recorded reset is simply marked “No reset recorded”, which says nothing about what else happened that day.
A reset can be delivered after it is announced; each record page shows the announced and delivered times when known.

Frequently asked questions

What is Tibo's 28-day challenge?

A challenge Tibo (@thsottiaux) started in a public post on X. His exact words are quoted at the top of this page, and that post is the only source of the rules. This site is not affiliated with OpenAI or Tibo; it tracks only the resets recorded during the 28 Pacific-time days, not the improvements.

How many Codex resets has the 28-day challenge had?

So far, this site has recorded 8 resets and 1 banked reset inside its 28 Pacific-time days (counted from the recorded announcements, so a very recent one may not be in yet). Days are counted in America/Los_Angeles time and delivery of a reset can lag its announcement; see each day's cell for the original post.