AI News: UltraGen, LongCat Video, InfinityStar & Hailuo 2.3
Catch up on AI video news including UltraGen, LongCat Video updates, InfinityStar, and Hailuo 2.3 release.
Read more
LongCat Video is a 13.6B dense model that keeps motion smooth, color stable, and prompts faithful for text-to-video, image-to-video, and video continuation. Generate coherent 720p 30fps sequences that actually run minutes long.
Use a publicly accessible URL (jpg/png/webp/gif/avif).If it's from Google Drive/Dropbox/OneDrive/iCloud, make sure the file is public or shareable.No public link handy? Upload to store it on R2 and auto-fill the URL.
Nothing generated yet
LongCat Video is an independent wrapper that provides a user-friendly interface on top of LongCat and other third-party AI models. We are not affiliated with or endorsed by any model vendor. We focus on clearer UI, extra video tools, flexible pricing, and support that replies within 3 business days.
Everything you need to keep long videos coherent and on-brand.
All parameters stay active so LongCat Video keeps subjects stable across frames.
Generate fast drafts then refine to crisp 720p 30fps without rerunning the whole clip.
Less than 10% of the usual attention cost, so LongCat Video runs longer without melting GPUs.
Balances visual quality, motion quality, and text alignment for prompt-faithful LongCat Video outputs.
Pretrained on continuation, so extending clips feels natural—no sudden resets or color drift.
Use LongCat Video commercially, fine-tune privately, and deploy anywhere.
LongCat Video is built to hold consistency across hundreds of frames. Dense 13.6B parameters, coarse-to-fine rendering, and Block Sparse Attention keep characters, lighting, and camera motion steady in long stories.
One LongCat Video stack covers prompts, still-frame extensions, and clip stitching so you can storyboard once and render straight through.
Train-time video continuation plus GRPO rewards let LongCat Video keep objects stable and motion natural for multi-minute runs.
All parameters fire every frame, so LongCat Video beats larger sparse baselines on alignment and visual quality without huge hardware.
MIT license, reproducible seeds, and browser-friendly tools make LongCat Video easy to ship across research, product, and creative pipelines.
Open, fast, and consistent for real productions.
All-parameter LongCat Video core for stable frames
Default LongCat Video quality for smooth playback
Continuation + GRPO keep stories coherent past 60s
Open-source LongCat Video license for commercial use
Prompt or upload → LongCat Video → publish. Long clips without jitter.
Describe scene, camera, motion, and duration. Add seed for reproducible LongCat Video runs.
Use image-to-video or continuation to keep style and layout locked while LongCat Video extends the story.
Coarse-to-fine rendering plus Block Sparse Attention keep LongCat Video outputs smooth for minutes. Export MP4, GIF, or thumbnails.
Answers about quality, licensing, hardware, and prompt writing for LongCat Video.
Need help? Email [email protected]
Use LongCat Video to turn prompts or images into minutes-long 720p 30fps stories without drift.