Open Source Text-to-Video in 2026

Open-Sora (29,244 stars), AnimateDiff (12,211) and Stable Video Diffusion (27,240) bring text-to-video to your own GPU - shorter clips than Sora, but free and fully controllable.

💡 What You Will Learn

Open-Sora (29,244 stars), AnimateDiff (12,211) and Stable Video Diffusion (27,240) bring text-to-video to your own GPU - shorter clips than Sora, but free and fully controllable.

📜 Table of Contents

• The short answer
• Quick start with Open-Sora
• Which model for which job
• Real numbers
• FAQ

The short answer

Open-Sora (29,244 stars, Apache-2.0) by HPC-AI Tech is the most serious open-source attempt at a Sora-like video model - it supports text-to-video, image-to-video and longer clips, with training code included. AnimateDiff (12,211 stars, Apache-2.0) animates Stable Diffusion images - perfect for short stylized loops. Stable Video Diffusion (27,240 stars, MIT) from Stability generates 2-5 second clips from a single image.

Quick start with Open-Sora

git clone https://github.com/hpcaitech/Open-Sora.git; cd Open-Sora
pip install -e .

import torch
from opensora.models import TextToVideo

model = TextToVideo.from_pretrained("hpcai-tech/Open-Sora-v1.2")
prompt = "a golden retriever running through a flower field, cinematic lighting"
video = model.generate(prompt, num_frames=93, height=480, width=640)

Which model for which job

Real numbers

• Open-Sora v1.2 generates 16 frames (480p) in about 2-4 minutes on an A100-class GPU; consumer 24GB GPUs can do 240p clips.
• AnimateDiff runs on a 12GB GPU and produces 16-frame GIFs in ~1-2 minutes.
• These models produce 480p/720p clips of 2-10 seconds - not Sora's 60s cinema, but enough for ads, social posts and concept videos.

FAQ

Q: Why not just use Sora? A: Sora is not publicly available for everyone and costs per generation. Open models are free, private, and fine-tunable.

Q: Can I use these for commercial projects? A: Apache-2.0 (Open-Sora, AnimateDiff) and MIT (SVD) allow commercial use - check each model card for trained weights' specific terms.

❓ FAQ

Why not just use Sora?

Sora is not publicly available for everyone and costs per generation. Open models are free, private, and fine-tunable.

Can I use these for commercial projects?

Apache-2.0 (Open-Sora, AnimateDiff) and MIT (SVD) allow commercial use - check each model card for trained weights' specific terms.