Local: your hardware does the work
Open-source projects such as Deep-Live-Cam download face models and run them on your machine. The project lists several execution providers: CPU, NVIDIA CUDA, Apple CoreML, DirectML and OpenVINO. CPU mode works but is slow; a recent NVIDIA card gives the smoothest live results. Setup involves Python, ffmpeg and model files, and sending the result to a meeting usually goes through OBS.
Cloud: the model runs remotely
Live Face Swap sends your camera video to Lucy 2.5, a real-time model from Decart running on fal, and shows the edited video as it comes back. Your computer only captures and displays video, so integrated graphics are fine. The trade-offs are an internet requirement and paying for the seconds you use.
Which one fits you
- You have an NVIDIA RTX card and like tinkering: a local tool can be free to run.
- You use a Mac, a thin laptop or want it working in minutes: cloud is simpler.
- You need it in Zoom, Teams or OBS: pick a tool with its own virtual camera.
- You must keep video on your machine: choose local processing.
Safe and legal use
Using your own face, an original character or a consenting person is very different from impersonating someone. In the United States the TAKE IT DOWN Act (2025) targets non-consensual intimate images, including AI-generated ones, and platforms such as Twitch ban impersonation and explicit deepfakes. Disclose realistic face swaps so viewers are not misled.