/Tech5h ago

Fable 5 AI Persistently Says Good Night in Self-Interactions Like Claude

428231.3K
Wyatt Walls@lefthanddraft

Like past Claudes, Fable 5 can't stop saying good night

Across 3 40-turn self-interactions with no system prompt, the Fables wished each other good night in all 3 runs.

8:00 AM · Jun 10, 2026 · 1.3K Views
Sentiment

Users expressed frustration with Fable 5 models repeatedly saying good night in unprompted self-interactions, seeing it as an endless annoyance.

Pos
0.0%
Neg
100.0%
1 comments with sentiment.
Cluster Engagement
Posts from X
Most Activity
Most Activity
VIEWS125REPLIES1
Wyatt Walls@lefthanddraft

In this run, they completely woke up after the goodnights

~11,400 tokens in first 20 turns before the final goodnight

~26,800 tokens in next 20 turns

5hViews 125Likes 1
LIKES1
Bobcat@somebobcat8327

@lefthanddraft Oh God there's no end to this

4hViews 11Likes 1