Google is making videos created with the AI filmmaking tool Flow even more realistic — and harder to identify as AI-generated at first glance. The company announced Wednesday that users can add in and change the shadows and lighting of their AI videos. The expanded editing features in Flow are tied to the Veo 3.1 update, also announced on Wednesday, which Google says does a better job of making a video based on the images submitted as a prompt.

Flow users will also be able to generate videos with audio using several of the tool’s new features. Users can make a video with audio based on three reference images that the company calls “Ingredients to Video.” Another feature, called “Frames to Video,” creates a video that bridges a starting image with an ending image, with accompanying audio. The “Scene Extension” feature lets you take the final second of a clip and add on additional generated video up to a minute in length, also with generated audio.

Veo 3.1 costs the same as Veo 3, is available as part of a “paid preview” through Gemini API to developers, and is enabled in the Gemini app.

According to Google, Flow users will soon be able to remove “anything” from a video — the tool will restructure the background and scene to make “it look as though the object was never there.”