Gemini Omni 1.2 Flash Extend continues an existing video. Input: a clip up to 30 s and a prompt describing what happens next. It appends 3 to 10 s that continue from the last frames with the same subjects, lighting, camera and audio. Output is the source plus the new seconds (a 15 s source with 10 s added is 25 s). Chain runs to build longer shots, up to the 30 s input limit. Narration can be added; prompts that add new on-screen dialogue may fail with a speech-edit error. 360p, 720p, 1080p or 4K. To change the look use Edit.