New Claude chats that auto-pick Fable are switched to Opus once. You can still choose Fable.
Users
11
+3 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#198K
#165K among extensions
Version
1.0.0
updated 10 Sep 2026
Users
monthly, 1 months
Latest, 21 Oct 2026:11 usersMove the mouse over the chart for any month
Ratings count
monthly, 1 months
Latest, 21 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Stop Fable — Default Opus
Claude remembers the last model you used.
If a new chat opens on Fable and you leave it selected, later chats open on Fable too. Most chats do not need Fable — it uses your limit faster than Opus.
Stop Fable — Default Opus switches a new Claude chat off Fable onto the best Opus in the menu (Opus 5 when it is listed). You can still pick Fable from the model menu when you want it. Existing chats are not changed.
How it works
• Only runs on claude.ai and claude.com
• Only acts on a new chat whose model chip says Fable
• Clicks Opus once, then stops
• If you choose Fable yourself, it leaves that choice alone
This is an unofficial extension. It is not affiliated with, endorsed by, or sponsored by Anthropic.