Lucy 2.5 Real-Time AI Video Editing: Decart's 40ms Live Stream Revolution

Last week, Decart AI dropped something that changes the game for live video.

Lucy 2.5 edits video frames in real time during a live stream. Sub-40ms latency at 30 FPS. By the time you finish a gesture, the AI has already transformed the frame and pushed it to your audience.

This isn't pre-rendered effects. It's not post-production. It's a fundamentally different approach: instead of generating video from scratch, Lucy rewrites an existing video stream in real time.

What does this mean in practice?

For VTubers, it means turning a single photo into a live, streamable avatar that doesn't drift or degrade over time. For live commerce, it means switching backgrounds and demonstrating product wear without a green screen. For ad production, it means generating infinite variations of a base video on the fly.

The technical breakthrough is Decart's DOS inference stack with latency under 40ms at 720p. The self-anchoring mechanism prevents identity drift.

Pricing is $0.02/sec for real-time. New accounts get free trial credits. The full setup guide is at https://wan27.org/blog/lucy-2-5-guide.

If you're building something around real-time video, Lucy 2.5 is worth a look. Start with the free trial: a 30-second edit costs less than a dollar.