Understanding Prism: Dynamic Sparse Attention for Joint Video-Audio Generation
Prism is a dynamic sparse-attention framework for training video-and-audio generation models at high resolution. It aims to reduce the cost of atten…
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The Critic Panel: Teaching an AI Pipeline to Check Its Own Work
Every critic in the main video-generation service's pipeline started with the same structural limit: it graded one picture. Is this frame composed c…
Three Phases of AI B-Roll: From Manual Beats to Vision-Authored Cutaways
B-roll is what makes a UGC testimonial feel edited rather than generated. The presenter talks to camera; cutaways show the product in hand, the labe…
The Seedance 2.5 Prompting Guide, in English
Cross-posted from apimodels.app — the canonical version lives there and is kept up to date. If you have only ever prompted image models, video model…
Exploring MiniMax H3: An Omni-Modal Leap in Local Video Generation
MiniMax H3 (Hailuo 03) just dropped with open weights in ComfyUI. This omni-modal video model pushes the boundaries of what's possible in local AI v…
Turn the camera away, and the AI's world freezes
Video AI systems consistently fail to track what happens when the camera looks away: when a scene pans away from an object in motion and returns, cu…
Long video generation blog: How We Shipped SVI in Production
In Part 1 , we surveyed six approaches to long video generation — TTT, LoL, Self Forcing, Self Forcing++, Infinite Talk, and Helios — and landed on…