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• The response generated by the LLM is then converted back into speech using text-to-speech (TTS) technology, with options for voice cloning to match the individual's voice.

• Simultaneously, a lip-syncing model aligns the video to the synthesized speech, producing a synchronized visual of the person speaking.

This entire cycle operates in real-time, with latency as low as less than one second, ensuring natural, seamless interactions.

Open Source vs. Closed Source Solutions

Developers maintain both open-source frameworks, such as Toip and S Talker, and closed-source solutions like NVIDIA's Ace and Synthesia for lip-syncing.