text-to-video
Google Veo 3.1 Fast
Google's fast Image-to-Video model with native 1080p output and audio generation
Use one of our client libraries to get started quickly.
Google Veo 3.1 Fast
Google's fast Image-to-Video model with native 1080p output and audio generation. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.
Video output~60-180sfrom $0.88/run
1. Calling the API
Submit a request
Send a POST request to start generation. The API returns immediately with a prediction ID for polling.
curl -X POST "https://api.vibedream.ai/api/v1/models/veo3.1-fast/generate" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $VIBEDREAM_API_KEY" \
-d '{
"image": "https://example.com/your-image.jpg",
"prompt": "A beautiful sunset over mountains with golden light",
"negative_prompt": "blurry, low quality, distorted...",
"aspect_ratio": "16:9",
"duration": "8",
"resolution": "1080p",
"generate_audio": true,
"seed": 0
}'2. Authentication
The API uses an API Key for authentication.
Get your API Key
Get your API key from vibedream.ai/models/api-keys.
Environment variable
export VIBEDREAM_API_KEY="your-api-key"
3. Queue & Results
Generation requests are queued and processed asynchronously. Poll the prediction endpoint until status is completed or failed.
Submit request
curl -X POST "https://api.vibedream.ai/api/v1/models/veo3.1-fast/generate" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $VIBEDREAM_API_KEY" \
-d '{
"image": "https://example.com/your-image.jpg",
"prompt": "A beautiful sunset over mountains with golden light",
"negative_prompt": "blurry, low quality, distorted...",
"aspect_ratio": "16:9",
"duration": "8",
"resolution": "1080p",
"generate_audio": true,
"seed": 0
}'Response
Returns immediately with a prediction ID. Use id to poll for results.
{
"id": "550e8400-e29b-41d4-a716-446655440000",
"status": "processing",
"statusUrl": "https://api.vibedream.ai/api/v1/predictions/550e8400-e29b-41d4-a716-446655440000",
"estimatedTime": "60-180s",
"costCents": 88,
"createdAt": "2025-01-15T12:00:00.000Z"
}Get the result
Polling
# Replace YOUR_PREDICTION_ID with the id from the submit response curl "https://api.vibedream.ai/api/v1/predictions/YOUR_PREDICTION_ID" \ -H "Authorization: Bearer $VIBEDREAM_API_KEY" # Poll every 1-2s until status is "completed" or "failed"
Completed response
outputs is string[] — an array of direct download URLs hosted on assets.vibedream.ai.
{
"id": "550e8400-e29b-41d4-a716-446655440000",
"modelId": "veo3.1-fast",
"modelName": "Google Veo 3.1 Fast",
"status": "completed",
"outputs": [
"https://assets.vibedream.ai/outputs/550e8400-e29b-41d4-a716-446655440000/1736942400000-0.mp4"
],
"error": null,
"createdAt": "2025-01-15T12:00:00.000Z",
"completedAt": "2025-01-15T12:00:30.000Z"
}Failed response
{
"id": "550e8400-e29b-41d4-a716-446655440000",
"modelId": "veo3.1-fast",
"modelName": "Google Veo 3.1 Fast",
"status": "failed",
"outputs": null,
"error": "Your request was flagged by content moderation. Please modify your prompt.",
"createdAt": "2025-01-15T12:00:00.000Z",
"completedAt": "2025-01-15T12:00:05.000Z"
}| Field | Type | Description |
|---|---|---|
| id | string | Unique prediction ID (UUID). |
| modelId | string | ID of the model used for generation. |
| modelName | string | Human-readable model name. |
| status | string | Current status. One of: processing, completed, failed. |
| outputs | string[] | null | Array of output URLs. Each URL is a direct download link to the generated file on assets.vibedream.ai. null when still processing or failed. |
| error | string | null | Error message if the generation failed. null on success. |
| createdAt | string | ISO 8601 timestamp when the request was submitted. |
| completedAt | string | null | ISO 8601 timestamp when generation finished. null while processing. |
4. Schema
Input
| Parameter | Type | Required | Default | Range | Description |
|---|---|---|---|---|---|
| image | string | Yes | -- | -- | The image to use as the starting framePass a public image URL. Accepted: JPEG, PNG, GIF, WebP. |
| prompt | string | Yes | -- | -- | The positive prompt for the video generation |
| negative_prompt | string | No | -- | -- | Things to avoid in the generation |
| aspect_ratio | string | No | 16:9 | 16:9, 9:16 | The aspect ratio of the generated video |
| duration | string | No | 8 | 4, 6, 8 | The duration of the generated video in seconds |
| resolution | string | No | 1080p | 720p, 1080p, 4k | Video resolution |
| generate_audio | boolean | No | true | -- | Generate audio for the video ($1.20 with audio, $0.80 without) |
| seed | number | No | -- | 0 – 2147483647 | Random seed for reproducibility |
Example request
{
"image": "https://example.com/your-image.jpg",
"prompt": "A beautiful sunset over mountains with golden light",
"negative_prompt": "blurry, low quality, distorted...",
"aspect_ratio": "16:9",
"duration": "8",
"resolution": "1080p",
"generate_audio": true,
"seed": 0
}Output
{
"id": "550e8400-e29b-41d4-a716-446655440000",
"modelId": "veo3.1-fast",
"modelName": "Google Veo 3.1 Fast",
"status": "completed",
"outputs": [
"https://assets.vibedream.ai/outputs/550e8400-e29b-41d4-a716-446655440000/1736942400000-0.mp4"
],
"error": null,
"createdAt": "2025-01-15T12:00:00.000Z",
"completedAt": "2025-01-15T12:00:30.000Z"
}