AI coding tools / Compare
ChatGPT and Codex shared usage allowance vs Copilot Fusion: 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 | Copilot Fusion | |
|---|---|---|
| Verdict | Too early | Too early |
| Claims held | 0 | 2 |
| Claims mixed | 0 | 0 |
| Claims failed | 0 | 1 |
| Claims unclear | 4 | 0 |
| User reports | 4 | 4 |
| Launched | 31 Oct 2026 | 28 Oct 2026 |
| Last stamped | 1 Nov 2026 | 30 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. 015 · GitHub
Copilot Fusion
Day 4 of 7Generally available and the benchmark checks out, but "all plans in all four clients" does not: top tiers are paid-only and two clients have gaps.
- Launched
- 28 Oct 2026
- Stamped
- 30 Oct 2026
- Claims
- ✓2 held · ~0 mixed · ✗1 failed · ?0 unclear
- Reports
- 4 (0 praise · 4 problem · 0 mixed)
What they claimed
“In the Artificial Analysis Coding Agent Index, Copilot Fusion Max scored 60, within two points of Claude Code with Opus 5.5 Max.”✓ Holds
“GitHub Copilot Fusion is generally available.”✓ Holds
“Copilot Fusion is available on all Copilot plans in Visual Studio Code, the GitHub Copilot app, GitHub Copilot CLI, and JetBrains IDEs.”✗ Fails
Both stamps come from the public user reports linked on each receipt, under the same method. Verdicts are opinion and are never paid for.
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