Sora 2: Text & Image to Video
OpenAI's Sora-2 and Sora-2 Pro video generation with synchronized audio.
简介
This ComfyUI workflow demonstrates end-to-end text- and image-to-video generation using the OpenAIVideoSora2 node, with optional synchronized audio. You can start from a text prompt alone or condition the video with a reference image loaded via LoadImage. Because Sora-2 and Sora-2 Pro expect fixed input sizes, the workflow offers two branches to make your image fit: Option 1 uses ResizeAndPadImage to letterbox without cropping, and Option 2 crops to fill the frame. PreviewImage lets you confirm framing before you trigger the API call, and SaveVideo writes the returned video to disk.
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在 ComfyUI 中运行。 此工作流无法在本页面运行。你可以在 Comfy Cloud 中打开（已预先加载所需内容），或下载后在自己的 ComfyUI 中使用。
在 Cloud 中试用常见问答
Use Sora-2 for 720x1280 or 1280x720 when you want faster, standard aspect results. Choose Sora-2 Pro if you need the additional sizes (1024x1792, 1792x1024) or higher fidelity. Always match your input image to the exact resolution you select.
Use Option1 - Pad image (ResizeAndPadImage) to letterbox and preserve the entire image, or use Option 2 - Crop image to fill the frame edge-to-edge. Check the result with PreviewImage before running the API. The API will reject mismatched sizes.
Yes. Bypass the image branch (select those nodes and press Ctrl-B) so OpenAIVideoSora2 receives only your text prompt. You can re-enable the image path later to switch back to image-to-video.
When available, the OpenAIVideoSora2 API returns a video that includes synchronized audio. SaveVideo writes the received video file to disk. If the API response is silent, your output will not contain audio.
Confirm you’re running in a secure environment that allows localhost/127.0.0.1, your API credentials are set in the OpenAIVideoSora2 node, and your firewall/proxy isn’t blocking the request. See the partner node overview and pricing links in the MarkdownNote.