AI Avatar Generator 2026: SadTalker (14k Stars) vs LivePortrait - Make Photos Talk, Free

Talking-head avatars used to require studios. Now open-source tools animate a single portrait photo into a talking video driven by audio - for YouTube, e-learning, or fun. Here are the two that matter in 2026.

## The short answer The two leading open-source talking-avatar tools in 2026 are **SadTalker** (13,994 stars, CVPR 2023) - the classic that turns one photo + audio into a talking head - and **LivePortrait** (18,845 stars, Kuaishou) - the newer, faster model with better head motion control. Both run locally and free. ## SadTalker - the classic - Input: one portrait image + one audio file (or text via TTS). - Output: a video of the photo speaking with lip sync and head motion. - Well-documented; runs via CLI, Gradio web UI, or ComfyUI. ```bash git clone https://github.com/OpenTalker/SadTalker cd SadTalker pip install -r requirements.txt python inference.py --driven_audio input.wav --source_image photo.jpg --result_dir output/ ``` - Works best with clear, front-facing portraits. - 512x512 output; a GPU makes generation fast (30-60s per clip). ## LivePortrait - the modern option - Kuaishou's model; much better head pose and expression transfer. - Also animates multiple faces, supports driving video (not just audio). - Faster and higher quality than SadTalker on most inputs. ```bash git clone https://github.com/KwaiVGI/LivePortrait cd LivePortrait pip install -r requirements.txt python inference.py --src_img photo.jpg --driving_audio audio.wav ``` ## Which to use | Need | Tool | |:-----|:-----| | Simple audio-driven talking head | SadTalker | | Better motion + video driving | LivePortrait | | ComfyUI workflow integration | SadTalker (more nodes) | ## Practical tips - Use a high-resolution front-facing photo with even lighting. - Pair with a TTS tool (Kokoro, see our voice over guide) for fully automated video. - For long videos, generate in segments and stitch - both tools are designed for short clips. ## FAQ **Are these free?** Yes - open source, run locally; SadTalker is for research/non-commercial per its license, check LivePortrait's license for commercial use. **Can I use my own voice?** Yes - any audio file works, including your recorded voice. **What about the deepfake concern?** Same consent rules as face swap: only use your own likeness or with explicit permission. ## Related - [AI Voice Over Generator 2026](/post/kokoro-ai-voice-over-20260803) - [AI Face Swap 2026](/post/facefusion-ai-face-swap-20260803)