Ethan Mollick(@emollick):Opus 5.5 was a good model in my early tests, first non-Fable/Astra model to feel like a Fable-class model, but still hasn't fully solved the dense language issue of the recent Claudes. Its version of the same shader (broken towers are a nice touch): https://t.co/GH5cwxCwu8

Ethan Mollick

@emollick

Professor @Wharton studying AI. New book, Co-Existence, coming October 20. Preorder here: Substack:

参加 May 2009

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Ethan Mollick@emollick

2026.09.22 16:55

Opus 5.5 was a good model in my early tests, first non-Fable/Astra model to feel like a Fable-class model, but still hasn't fully solved the dense language issue of the recent Claudes. Its version of the same shader (broken towers are a nice touch):

Ethan Mollick@emollick

2026.09.02 03:00

The drowned neo-gothic tower twigl shader created by Fable 5.1 with the same prompt. (compare to Fable 5 in the quoted tweet, and other models before that)