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LongCat-Video AI Video Generator

Create coherent, minutes-long videos from simple prompts. LongCat-Video unifies Text-to-Video, Image-to-Video, and Video-Continuation with efficient 720p/30fps generation, stable color consistency, and modern RLHF tuning for reliable, cinematic outputs.
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Why Choose LongCat-Video?

A unified, efficient, and reliable long video generator built for modern creative workflows — from social clips to minutes-long narratives.

Unified Multi‑Task Pipeline

One 13.6B‑parameter model for Text‑to‑Video, Image‑to‑Video, and Video‑Continuation. Keep style and motion consistent across clips while switching tasks without model hopping.
Generate from Text or Image

Minutes‑Long Continuation

Pretraining on continuation enables minutes‑long outputs with stable composition, reduced color drifting, and smooth scene evolution — ideal for storytelling and product demos.
Extend Your Shots

Efficient 720p @ 30fps

Coarse‑to‑fine generation across temporal and spatial axes produces 720p, 30fps videos in minutes. Block Sparse Attention accelerates high‑resolution inference without sacrificing detail.
Render Faster

RLHF with Multi‑Reward GRPO

Multi‑reward RLHF (GRPO) aligns outputs to human preferences across motion quality, temporal coherence, and visual fidelity — delivering competitive results vs. top open‑source and commercial systems.
See Quality Gains

Consistent Colors & Motion

LongCat‑Video maintains stable palettes and temporal consistency across long sequences, minimizing flicker and drift for professional‑grade edits and post pipelines.
Keep Shots Cohesive

Creator‑Friendly Controls

Natural‑language prompts guide subjects, environments, and pacing. Choose aspect ratios for landscape, portrait, or square delivery to match your platform strategy.
Direct with Prompts
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LongCat‑Video Pricing (Credits)

Simple per-second pricing by resolution.
Name & RoleCredits
480p (15fps)
4 credits per second
4
720p (30fps)
6 credits per second
6
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Frequently Asked Questions

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What is LongCat‑Video?

LongCat‑Video is a 13.6B‑parameter foundation model for Text‑to‑Video, Image‑to‑Video, and Video‑Continuation. It’s optimized for efficient, high‑quality long video generation with stable colors and temporal coherence.

How fast is inference?

Thanks to a coarse‑to‑fine schedule across time and space plus Block Sparse Attention, LongCat‑Video can produce 720p, 30fps videos within minutes on modern accelerators.

How does pricing work?

Credits equal requested video seconds. Choose 480p (15fps) or 720p (30fps) and select 2–8 seconds — your total credits match the duration.

What makes outputs feel consistent?

The model is natively pretrained for continuation and refined with multi‑reward RLHF (GRPO), improving motion smoothness, color stability, and narrative coherence over longer shots.

Any tips for prompts?

Keep subjects and actions specific, add environment cues and pacing words (e.g., "slow camera push", "daylight soft shadows"). For longer clips, outline beats in one sentence each.

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