Zed has introduced a new edit prediction feature powered by Zeta, an open-source model, to enhance the speed and intuitiveness of its editing experience. This feature anticipates a user's next edit, allowing it to be implemented by simply pressing the tab key, thus streamlining the editing process and reducing keystrokes. During its public beta phase, users can access this feature for free by signing in with their GitHub account. The developers have carefully integrated this functionality to coexist with existing uses of the tab key and language server suggestions. Zeta was developed through a combination of techniques like supervised fine-tuning and direct preference optimization, which enhanced its ability to make sensible edits while minimizing latency through speculative decoding and strategic deployment across geographic regions. The Zed team remains committed to an open-source approach, encouraging community contributions to improve Zeta further, and is actively exploring ways to expand and refine the capabilities of edit predictions.