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bytedance / seedance-v1.5/image-to-video

Transform static images into dynamic videos with synchronized audio. Supports text-guided animations and start/end frame keying.

Priced by resolution

Model Input

Input

The text prompt used to generate the video

The URL of the image used to generate video

The URL of the image the video ends with. Defaults to None.

The aspect ratio of the generated video

Video resolution - 480p for faster generation, 720p for balance, 1080p for higher quality

Duration of the video in seconds

Whether to fix the camera position

Random seed to control video generation. Use -1 for random.

Whether to generate audio for the video

Safety checker can only be disabled on API call

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Model Output

Output

Fill in the input form and click submit to see the output
Logs (1 lines)

Model Example Requests

Examples

Model Pricing

Pricing

Model pricing varies by the target resolution of your output video.

480p
$0.02
per second of output video
or around 43 seconds for $1
720p
$0.05
per second of output video
or around 19 seconds for $1
1080p
$0.12
per second of output video
or around 9 seconds for $1

Model Details

Model Details

Seedance 1.5 Image-to-Video transforms your static pictures into highly expressive, animated video clips. By interpreting your text prompt alongside a reference image, it generates smooth, realistic motion and seamlessly pairs it with synthesized audio. Whether you are animating a portrait, creating a cinematic scene, or producing short social media clips, this model provides an intuitive way to produce engaging multimedia content. You can run the model directly via our app's UI, tweak the settings to your liking, and effortlessly download the resulting video files locally.

**Features** - **Integrated Audio Generation**: Automatically synthesizes contextual audio, sound effects, or speech that aligns with the visual action described in your text prompt. - **Start and End Keyframes**: Uniquely supports both a starting frame (`image_url`) and an optional ending frame (`end_image_url`), giving you precise control over the video's visual transition and final state. - **Camera Stabilization**: Includes a camera lock feature to prevent automated panning or zooming, keeping the narrative focus entirely on the subject's internal movement.

**What it’s good at** - Bringing static character portraits to life with matching dialogue and realistic facial animations. - Creating smooth, visually stunning transitions between two distinct images using start and end frames. - Generating ready-to-publish short-form video content with instantly integrated sound tracks.

**Tips** - Use high-resolution, clear starting images for the best visual output and accurate subject rendering. - When generating speech, explicitly write the spoken dialogue in quotes within your text prompt (e.g., *A man says "I regret everything"*). - Make sure the environment and lighting implied by your prompt reasonably match the source image.

To run via the ModelRunner JavaScript client: ```javascript import { modelrunner } from "@modelrunner/client";

const result = await modelrunner.subscribe("bytedance/seedance-v1.5/image-to-video", { input: { prompt: "A man is crying and he says \"I shouldn't have done it. I regret everything\"", image_url: "https://example.com/crying_man_portrait.png", generate_audio: true, camera_fixed: false, duration: "5", resolution: "720p" }, });

console.log(result.data); ```