Research noteResearched 2 Nov 2026 · published 2 Nov 2026, 21:59 IST · updated 2 Nov 2026

Research note: ChatGPT and Codex will share one usage limit from December, and the Chat and Work tabs are merging

How we checked OpenAI's usage limit changes and what it has not published.

Research led by Mayank Sahu

Compiled with AI assistance (Claude by Anthropic)

Read the story →

At a glance

1searches run

3sources read

2sources used

5facts labelled

Mixedevidence strength · 2 of 4 facts (50%)

How we rate evidence: Some facts are confirmed, others rest on one report or on the company’s own claims. We count the share of known facts labelled Confirmed or Reported: 70% or more is Strong, 40–69% Mixed, below 40% Limited.

From sources to story

How many sources we read, how many we used, and how many are official or archived.

Read3Every source we opened

Used2Relied on for the story

Cited2Linked in the story

Official0From the company or a public body

Archived2Saved on the Internet Archive

How sure we are, fact by fact

221

Reported · 2 — Two or more independent, named outlets say it.
Unconfirmed · 2 — One report only, shown with its source.
Not known · 1 — Not announced or not answered yet.

Evidence map

Each row is a fact from the story; each column is a source. A filled dot means that source supports the fact.

Fact	Label	1OUT	2OUT
ChatGPT and Codex will share one usage allowance from December on Plus, Pro and Business.	Reported
The desktop app will merge its Chat and Work tabs, starting with select users.	Reported
Instant chat will not draw from the allowance.	Unconfirmed
OpenAI doubled Pro usage limits on 29 October.	Unconfirmed
Allowance size for each plan.	Not known

Question

What we set out to check

What changes, for which plans, from when, and what OpenAI has not said.

Findings

What we found

Both outlets quote OpenAI's email and agree on the shared allowance and tab merge. SQ Magazine adds the December start, the plans affected, Instant chat and the Pro limit change. tbreak says OpenAI gave no date; SQ Magazine gives December for pooling. These refer to different changes.

Discrepancies

Numbers that differ

None.

Method

Labels we chose and why

Reported for the shared limit and tab merge. Unconfirmed for the December date, Instant chat and Pro details, from one source.

Open questions

What we could not verify

OpenAI's email or help page directly.

Can you help confirm one of these? Send us a source. When we find an answer, we update this note and the story, with the date.

Next steps

How we could improve this

Cite OpenAI's help article, and add the allowance figures once published.

Research timeline

Research2 Nov 2026
Research note published2 Nov 2026, 21:59 IST
Story published2 Nov 2026, 22:09 IST

What we searched

OpenAI ChatGPT Codex merged usage limits

Every source we read

Source	Used?	Why
tbreak Archived copy	USED	Email quotes, tab merge, rollout.
SQ Magazine Archived copy	USED	December timing, plans, Instant chat, Pro changes.
BleepingComputer	NOT USED	Page did not load for us.

Sources cited in the story

Research notes show our working. They are not peer-reviewed papers. Data: facts as JSON · How we report