Do I have to include duration and aspect ratio in the prompt?

Yes. Gemini Omni Video expects duration and aspect ratio to be specified in the text. The Prompt Constructor subgraph ensures these fields are included so the request is well-formed.

Where is the video saved and does it include audio?

SaveVideo writes a single video file to your ComfyUI output folder. This workflow focuses on the visual output; it does not handle audio tracks. If the API returns or suggests audio, it is not processed here.

What settings improve video quality or coherence?

Be concrete and structured: define subject, setting, camera move (e.g., slow dolly-in), lighting (e.g., warm golden-hour rim light), and temporal beats (what happens first/next). Keep duration realistic and aligned with the action to avoid rushed or stretched motion.

What if the request fails or the video is the wrong shape?

First, confirm your API credentials in GeminiVideoOmni. Then verify the prompt explicitly states duration (with units like seconds) and a standard aspect ratio (e.g., 16:9, 9:16, 1:1). Mismatched or missing values are common causes of errors or unexpected framing.

Gemini Omni Flash: Text to Video

This ComfyUI workflow turns plain-language prompts into short, cinematic video using the GeminiVideoOmni node. A Prompt Constructor subgraph (node id 3762e4c1-c5e0-4e1b-9449-e5ea5e9948cd) helps you build a well-formed prompt that explicitly includes duration and aspect ratio—two fields Gemini Omni Video expects in the text. Once composed, the prompt is sent through GeminiVideoOmni to the Gemini API, which synthesizes the clip based on your scene description, camera direction, motion cues, and lighting notes.

While the video is generating, PreviewAny provides an inline preview so you can quickly evaluate framing and motion. When you're happy, SaveVideo writes the final result to your output folder as a single video file. A MarkdownNote included in the canvas captures quick tips and reminders (like always specifying duration and aspect ratio). The layout keeps the most important levers up front, making it ideal for rapid iteration, prototyping, and prompt-driven storytelling.

常见问题

Do I have to include duration and aspect ratio in the prompt?

Where is the video saved and does it include audio?

What settings improve video quality or coherence?

What if the request fails or the video is the wrong shape?