Krea Realtime 14B. An open-source realtime AI video model.

xDiT: A Scalable Inference Engine for Diffusion Transformers (DiTs) with Massive Parallelism

"ViMax: Agentic Video Generation (Director, Screenwriter, Producer, and Video Generator All-in-One)"

Official Implementations for Paper - HoloCine: Holistic Generation of Cinematic Multi-Shot Long Video Narratives

[Preprint 2025] Ditto: Scaling Instruction-Based Video Editing with a High-Quality Synthetic Dataset

Ring attention implementation with flash attention

Infinite-Forcing: Towards Infinite-Long Video Generation

NanoGPT (124M) in 3 minutes

A sparse attention kernel supporting mix sparse patterns

A Distributed Attention Towards Linear Scalability for Ultra-Long Context, Heterogeneous Data Training

Dream to Control: Learning Behaviors by Latent Imagination

(NeurIPS 2024 Oral 🔥) Improved Distribution Matching Distillation for Fast Image Synthesis

Code for FastVGGT: Training-Free Acceleration of Visual Geometry Transformer

​​Unlimited-length talking video generation​​ that supports image-to-video and video-to-video generation

Ongoing research training transformer models at scale

Virtual Community: An Open World for Humans, Robots, and Society

VeOmni: Scaling Any Modality Model Training with Model-Centric Distributed Recipe Zoo

A novel Multimodal Large Language Model (MLLM) architecture, designed to structurally align visual and textual embeddings.

Make self forcing endless. Add cache purging. Add prompt controllability.

Diffusion Model as a Noise-Aware Latent Reward Model for Step-Level Preference Optimization

DDPO for finetuning diffusion models, implemented in PyTorch with LoRA support

[NeurIPS 2025] An official implementation of Flow-GRPO: Training Flow Matching Models via Online RL

An educational resource to help anyone learn deep reinforcement learning.

Official repository for "RLVR-World: Training World Models with Reinforcement Learning" (NeurIPS 2025), https://arxiv.org/abs/2505.13934

Official implementation of Continuous 3D Perception Model with Persistent State

Official implementation of CharacterShot: Controllable and Consistent 4D Character Animation

[Preprint] On the Generalization of SFT: A Reinforcement Learning Perspective with Reward Rectification.