Open weightsFree
Open-Sora
HPC-AI Tech
Open-Sora is a video generation model line from HPC-AI Tech. The latest release is Open-Sora 2.0 (20 Feb 2025). This page tracks all 4 Open-Sora releases since 18 Mar 2024, with specs, licensing, and how to access each one. Official site →
Open-Sora 2.0released
Open weightsFreeCommunity APISelf-host
Commercial-competitive quality trained for roughly $200k
- License
- Apache 2.0
- Commercial use
- Allowed
- Availability
- Self-host, Community API
- Parameters
- 11B
Open-Sora 1.2released
Open weightsFreeCommunity APISelf-host
3D-VAE and rectified flow; large quality jump
- License
- Apache 2.0
- Commercial use
- Allowed
- Availability
- Self-host, Community API
Open-Sora 1.1released
Open weightsFreeCommunity APISelf-host
Any resolution/aspect/duration (144p-720p); image and video conditioning
- License
- Apache 2.0
- Commercial use
- Allowed
- Availability
- Self-host, Community API
Open-Sora 1.0released
Open weightsFreeCommunity APISelf-host
First fully open Sora-style pipeline; 2s 512x512
- License
- Apache 2.0
- Commercial use
- Allowed
- Availability
- Self-host, Community API
FAQ
- When was Open-Sora 2.0 released?
- Open-Sora 2.0 was released on 20 Feb 2025.
- Is Open-Sora open source?
- Yes. Open-Sora 2.0 ships open weights under the Apache 2.0 licence.
- Can Open-Sora be used commercially?
- Yes. Commercial use of Open-Sora 2.0 is allowed under the Apache 2.0 licence.
- Where can I use Open-Sora?
- Open-Sora 2.0 is available via Self-host and Community API.
See Open-Sora in context on the video model timeline, or browse all model families.