Duix (formerly HeyGem) is the open-source HeyGen clone, it clones a face from a short video and re-lip-syncs it to any audio, offline on an NVIDIA card. We installed it and ran it. Here’s the honest result.
InfiniteTalk promises infinite-length talking video from a portrait and audio, running in ComfyUI. It looks very good, but on a 32GB card the ‘infinite’ part isn’t practical yet. Here’s the honest state.
LTX’s native audio dub is the highest-resolution lip-sync we’ve run locally, but the generative mode invents a made-up language unless you wire the true audio-driven path. Here’s how it works and where it slips.
Sonic makes lips sync from an image and audio, but it regenerates the whole face every frame, so the eyes roll, irises drift, and teeth get reinvented. Here’s why it’s unshippable for a recurring character.