If you mostly use chat AI and you are trying not to fall behind on new tools, do not file OpenMontage under "open-source Sora." The bigger signal is that the next phase of AI video is turning the IDE into a movie set. [C002]
A tool update is worth tracking not when it lists more features, but when it changes your next decision. If you read this like just another video model launch, you will spend time comparing outputs and miss the more important shift: who handles the whole job around the video.
For a normal user, that means the interesting part is not only generating a clip. It is software trying to handle the messy work around the clip, not just the clip itself.
The first clue is the repo's own label. It calls itself an "agentic video production system," not a single model and not a normal editor. That is why I do not read calesthio / OpenMontage as open-source Sora. [C001]
The architecture note pushes the same point harder: there is no central Python app running the show. The AI assistant makes the workflow calls, while Python mostly stores state and exposes tools. Boundary: this is based on the public GitHub repo and architecture docs only, with no local run. If that changes how you filter AI video news, share it with the person still asking only which model is best.