You Do Not Need 50 Diffusion Steps. Here Is What Nvidia Proved at GTC. | Towards AI

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Originally published on Towards AI.

The video diffusion industry has had the same conversation for two years.

Better model. More parameters. Higher resolution. Longer clips. Richer motion. And underneath all of it, the same silent constraint that nobody advertises: generating a single second of 720p video still takes long enough to make most real-time use cases a fantasy.

At GTC 2026 in San Jose, Nvidia’s Ziv Ilan from the AI Labs team in Paris gave a 20-minute talk that reframed the problem entirely. The title: You Might Not Need 50 Diffusion Steps.