We surveyed 6 approaches to long video generation — here's what we shipped and why
r/StableDiffusion
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Generative AI
AI Hardware
Spent the last few months trying to get coherent video longer than 15 seconds out of a single GPU in well under a minute wallclock. Wan2.2 is solid for 3-5s clips; pushing to 10s+ is where things get genuinely interesting. Sharing the survey and what stuck. Six approaches I went through: TTT (Test-Time