V 4mp4 -

Capable of generating 204-frame videos (roughly 6-7 seconds at 30 fps) with realistic textures and motion.

Built on a Diffusion Transformer (DiT) architecture with 48 layers, each containing 48 attention heads, Step-Video-T2V employs 3D Rotary Position Embedding (3D RoPE) to maintain consistency across varying video lengths and resolutions. v 4mp4

It uses bilingual encoders, allowing for strong performance in both English and Chinese text prompts. Capable of generating 204-frame videos (roughly 6-7 seconds

According to Neurohive, deploying or training this model requires substantial resources: Operating System: Linux Language & Library: Python 3.10.0+ and PyTorch 2.3-cu121 Dependencies: CUDA Toolkit and FFmpeg. According to Neurohive, deploying or training this model

The Step-Video-T2V (v 4mp4) is a state-of-the-art text-to-video AI model developed by Stepfun AI that, as of early 2025, has garnered attention for its ability to generate high-quality, long-duration videos. It focuses on producing 204-frame videos with a high degree of fidelity using advanced architecture.

The model is built on a massive, 30-billion parameter architecture designed for deep understanding of text prompts and visual generation.

The model incorporates Direct Preference Optimization (DPO), leveraging human feedback to ensure the generated content aligns with human aesthetic and quality expectations. Key Features