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The LIGO-Virgo-KAGRA fourth observing run (O4) ended last year and reported over 250 compact binary mergers discovered in real time. The scale of gravitational-wave searches, inference, and alerts has increased significantly over the last observing runs. As of O4, discoveries are made every 2-3 days, with alerts being distributed in ~30 seconds of merger time. In this context, I will present an overview of the LVK alert infrastructure and describe the analyses and steps involved to go from data acquisition to searches and alerts. I will also talk about recent algorithm development for noise subtraction, search, and parameter estimation using neural networks using ML4GW, a platform designed to accelerate training and inference algorithms in the context of gravitational-wave physics. Finally, I will summarize the first live binary black hole detections from the LVK done using ML4GW. |