AI coding tools / Compare
ChatGPT and Codex shared usage allowance vs Cursor Marketplace security notice (Claude Code extension): which delivered after 7 days?
Neither has a verdict yet: both are stamped Too early, with fewer than about five solid user reports each.
| ChatGPT and Codex shared usage allowance | Cursor Marketplace security notice (Claude Code extension) | |
|---|---|---|
| Verdict | Too early | Too early |
| Claims held | 0 | 3 |
| Claims mixed | 0 | 0 |
| Claims failed | 0 | 0 |
| Claims unclear | 4 | 2 |
| User reports | 4 | 5 |
| Launched | 31 Oct 2026 | 29 Oct 2026 |
| Last stamped | 1 Nov 2026 | 31 Oct 2026 |
No. 021 · OpenAI
ChatGPT and Codex shared usage allowance
Day 1 of 7Day 1: the change has not started and OpenAI gives no start date or allowance figures, so its promise that most users will not wait longer for resets can't be checked yet.
- Launched
- 31 Oct 2026
- Stamped
- 1 Nov 2026
- Claims
- ✓0 held · ~0 mixed · ✗0 failed · ?4 unclear
- Reports
- 4 (0 praise · 2 problem · 2 mixed)
What they claimed
“Starting in December, Plus, Pro, and Business plans’ usage allowance will be shared across ChatGPT and Codex”? Unclear
“Your usage for ChatGPT and Codex will be measured in tokens”? Unclear
“Instant chat will not draw from your usage.”? Unclear
“We expect most users won't need to wait for their usage to reset more often than they do now.”? Unclear
No. 017 · Cursor (Anysphere)
Cursor Marketplace security notice (Claude Code extension)
Day 3 of 7Day 2: independent analyses back Cursor on the failed SSH step and the leftover persistence; the 5,000-user count and its own audit can't be checked from outside.
- Launched
- 29 Oct 2026
- Stamped
- 31 Oct 2026
- Claims
- ✓3 held · ~0 mixed · ✗0 failed · ?2 unclear
- Reports
- 5 (0 praise · 1 problem · 4 mixed)
What they claimed
“These malicious versions of the extension were not developed by Anthropic.”✓ Holds
“Outside of highly unusual circumstances where Cursor was started with administrator privileges, due to errors in the malicious code, this step would fail.”✓ Holds
“We audited access and confirmed no other extensions were tampered with.”? Unclear
“Uninstalling the extension may not be sufficient — the payload drops standalone persistence scripts that keep running.”✓ Holds
“We identified a security incident affecting a modified Claude Code VS Code extension accessed through our Cursor IDE extension marketplace, impacting at most 5,000 users.”? Unclear
Both stamps come from the public user reports linked on each receipt, under the same method. Verdicts are opinion and are never paid for.
Keep comparingall AI coding tools
- ChatGPT and Codex shared usage allowance alternatives
- Cursor Marketplace security notice (Claude Code extension) alternatives
- ChatGPT and Codex shared usage allowance vs ChatGPT Pro: 2x Work and Codex usage
- ChatGPT and Codex shared usage allowance vs Claude Ultra (no 5-hour limit)
- ChatGPT and Codex shared usage allowance vs Codex CLI 0.157.0
- ChatGPT and Codex shared usage allowance vs Copilot Fusion
- ChatGPT and Codex shared usage allowance vs OpenCode 2.0
- ChatGPT Pro: 2x Work and Codex usage vs Cursor Marketplace security notice (Claude Code extension)
- Claude Ultra (no 5-hour limit) vs Cursor Marketplace security notice (Claude Code extension)
- Codex CLI 0.157.0 vs Cursor Marketplace security notice (Claude Code extension)
Weekly email · Fridays 14:00 CEST
Get the Friday Receipt
Every Friday: the week’s new day 7 receipts, the ones we re-stamped, and any corrections. One email, no sponsors from companies we review.
Prefer not to give an email? Follow the RSS feed or @day7dev on X.