lipsyn.cc vs SadTalker

lipsyn.cc turns video, portraits, or illustrated characters and audio into lip-synced video online. Users can upload audio or generate speech; the homepage advertises 91 languages and 10 voices. A free five-second preview is available without signup or a card. Full-length exports are available up to Full HD (1080p), and commercial use is included with exports. Videos can include up to three characters, with uploads up to 512 MB and audio and video up to 120 minutes. Paid minute packs are prepaid and do not expire: five minutes for €6.99, 10 for €13.90, 30 for €40.50, 60 for €79.20, or 180 for €232.20. The service has a web interface, an API, and an Adobe Express plugin. API renders run asynchronously and are delivered by webhook or polling, with cURL, Python, and Node.js examples. API limits include 60 requests per minute per key and five concurrent videos per account. The site says content remains the user's and is not used for training or other purposes; it also states that the service follows GDPR and Austrian data protection laws. Completed generations and minute-pack purchases are not refundable.

SadTalker creates a talking-head video from a portrait image and speech audio. It derives 3D head-pose and facial-expression coefficients from the audio to animate the face. The project describes still, reference, and resize modes, along with full-image animation. Command-line examples include GFPGAN enhancement. You can use a local Gradio demo or command-line inference, with setup paths for Linux, Windows, and macOS; Hugging Face and Colab demos are also linked. The documented Linux setup includes Python 3.8, PyTorch, FFmpeg, and the repository requirements. Windows setup also calls for Python, Git, FFmpeg, and model files. Pre-trained models are linked from Google Drive, GitHub Releases, and Baidu. The project says its open-source code runs offline and collects no personal information or other data. SadTalker is free at free under Apache 2.0, except for listed third-party components. Output is 720p or lower and has no watermark. Integrations include Discord and a Stable Diffusion WebUI extension.