Ethan Mollick says Opus 5 is stronger than Opus 4.8, but still has odd quirks
emollick · x · 2026-07-25
Ethan Mollick says Opus 5 replaced Opus 4.8 for him because it was stronger overall, though it still shows some odd language quirks similar to Fable.
He also had the model build a game about railroads in a knock-off Middle Earth, which adds a small but useful demo of what the model can do in practice.
Related event: Opus 5 Shows Overall Improvement but Retains Quirky Language Style(2 posts)→
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