I gave Opus 5.5 one prompt and six hours to visualize Invisible Cities

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You should avoid add model name (or at least use Open weight model names) in your title, so it would be 90 (amazing) : 10 (lost the book value) comments. /s

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Six hours of continuous runtime is the underrated part here. Most one-shot demos fall apart well before that, so this doubles as an endurance benchmark.

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