# Veo 3.1 | Image to video | Fast

The faster version of Veo 3.1. Generates short, high-quality videos from images with reduced cost and timeperfect for previews or quick drafts.

## API Information

- **Model Slug:** veo3-1-image-to-video-fast
- **Branded URL:** https://www.eachlabs.ai/google/veo3-1/veo3-1-image-to-video-fast
- **Provider:** Google
- **Category:** Image to Video
- **Output Type:** video
- **Status:** active
- **Version:** 0.0.1
- **Base Cost:** 720p/1080p (default), 8s, Audio On/default
- **Estimated Processing Time:** 60 seconds
- **Last Updated:** 2026-07-13
- **Interactive Demo:** https://www.eachlabs.ai/ai-models/veo3-1-image-to-video-fast

## Pricing

- **Charge Type:** dynamic
- **Estimated Price (default example):** $1.20
- **Pricing Details:** 720p/1080p (default), 8s, Audio On/default

### Pricing Rules

| Condition | Pricing |
| --- | --- |
| resolution eq_i "4k" AND duration in_i "4,4s" AND generate_audio eq_i "false" | 4k, 4s, Audio Off |
| resolution eq_i "4k" AND duration in_i "6,6s" AND generate_audio eq_i "false" | 4k, 6s, Audio Off |
| resolution eq_i "4k" AND duration in_i "8,8s" AND generate_audio eq_i "false" | 4k, 8s, Audio Off |
| resolution eq_i "4k" AND generate_audio eq_i "false" | 4k, Audio Off, duration default 8s |
| resolution eq_i "4k" AND duration in_i "4,4s" | 4k, 4s, Audio On/default |
| resolution eq_i "4k" AND duration in_i "6,6s" | 4k, 6s, Audio On/default |
| resolution eq_i "4k" AND duration in_i "8,8s" | 4k, 8s, Audio On/default |
| resolution eq_i "4k" | 4k, Audio On/default, duration default 8s |
| duration in_i "4,4s" AND generate_audio eq_i "false" | 720p/1080p (default), 4s, Audio Off |
| duration in_i "6,6s" AND generate_audio eq_i "false" | 720p/1080p (default), 6s, Audio Off |
| duration in_i "8,8s" AND generate_audio eq_i "false" | 720p/1080p (default), 8s, Audio Off |
| generate_audio eq_i "false" | 720p/1080p (default), Audio Off, duration default 8s |
| duration in_i "4,4s" | 720p/1080p (default), 4s, Audio On/default |
| duration in_i "6,6s" | 720p/1080p (default), 6s, Audio On/default |
| duration in_i "8,8s" | 720p/1080p (default), 8s, Audio On/default |
| Rule 16 | Default: 720p, 8s, Audio On = $1.20 |

## Input Schema

| Parameter | Type | Required | Default | Constraints | Description |
|-----------|------|----------|---------|-------------|-------------|
| prompt | string | Yes | - | - | The text prompt describing the video you want to generate |
| image_url | string | Yes | - | - | URL of the input image to animate. Should be 720p or higher resolution in 16:9 or 9:16 aspect ratio. If the image is not in 16:9 or 9:16 aspect ratio, it will be cropped to fit. |
| aspect_ratio | string | No | 16:9 | 9:16,16:9 | The aspect ratio of the generated video |
| duration | integer | No | 8 | 4,6,8 | The duration of the generated video in seconds |
| generate_audio | boolean | No | true | - | Whether to generate audio for the video. If false, %33 less credits will be used. |
| resolution | string | No | 720p | 720p,1080p | Resolution of the generated video |
| auto_fix | boolean | No | false | - | Whether to automatically attempt to fix prompts that fail content policy or other validation checks by rewriting them. |

## Example Request

```bash
curl -X POST https://api.eachlabs.ai/v1/prediction/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "veo3-1-image-to-video-fast",
  "input": {
    "prompt": "A hyper-realistic space scene. An astronaut and a friendly alien float in zero gravity recording a podcast through glowing holographic microphones. Earth glows in the distance, their helmets reflect its blue light. Dialogue: Astronaut: “So… what’s WiFi like on your planet?” Alien: “Fast enough to stream your thoughts — but no ads.” Astronaut: “Lucky you. We can’t even stream lunch without buffering.” Alien: grins “That’s why I come here — for the lag.” Realistic lip-sync, floating camera motion, faint radio echo, detailed cosmic lighting.",
    "image_url": "https://storage.googleapis.com/magicpoint/inputs/veo3-1-image-to-video-fast-input.png"
  }
}'
```

## Output Schema

Response returned by `GET /v1/prediction/{id}` when the job completes:

```json
{
  "status": "success",
  "predictionID": "string",
  "output": "string (URL of generated video)",
  "metrics": {
    "predict_time": "number (seconds)"
  }
}
```

## Polling

```bash
curl https://api.eachlabs.ai/v1/prediction/{PREDICTION_ID} \
  -H "Authorization: Bearer YOUR_API_KEY"
```

| Status | Meaning |
|--------|---------|
| `processing` | Still running — poll again |
| `success` | Done — read `output` |
| `error` | Failed — read `message` / `details` |

## Webhook (alternative to polling)

Pass `"webhook_url": "https://your.host/path"` in the create request. Eachlabs POSTs this payload when the job ends:

```json
{
  "exec_id": "prediction-uuid",
  "status": "succeeded",
  "output": "https://...",
  "error": ""
}
```

`status` is `"succeeded"` or `"failed"`. `exec_id` equals the `predictionID` from create. Return 2xx within 30 seconds.

## Errors

Error body: `{ "status": "error", "message": "...", "details": "..." }`

| Code | Meaning |
|------|---------|
| `400` | Invalid input |
| `401` | Missing / invalid `Authorization` bearer token |
| `404` | Unknown model or prediction id |
| `429` | Rate limit — 100 creates / min, 10 concurrent per key |
| `5xx` | Retry with backoff |

## Overview

**veo3.1-image-to-video-fast — Image-to-Video AI Model**

Developed by Google as part of the veo3.1 family, veo3.1-image-to-video-fast transforms static images into expressive, high-quality videos with synchronized audio in seconds. This model solves a critical workflow problem for creators and developers: generating video content from existing visual assets without the cost, latency, or complexity of full text-to-video generation. The "fast" variant prioritizes speed and affordability, making it ideal for rapid prototyping, content previews, and production pipelines where iteration matters more than maximum resolution.

Unlike generic image-to-video AI models that struggle with consistency, veo3.1-image-to-video-fast maintains character identity and environmental coherence across generated frames. It accepts up to four reference images per generation, allowing creators to guide composition, style, and narrative direction with precision. With native audio generation capabilities, the model produces synchronized dialogue, sound effects, and ambient noise that match the visual content—eliminating separate post-production audio work.

## Usage Notes

- API Base URL: `https://api.eachlabs.ai/v1`
- Authentication: send `Authorization: Bearer YOUR_API_KEY`. Generate a key from the Eachlabs dashboard at https://www.eachlabs.ai/dashboard/api-keys.
- File-typed parameters (`*_url`, `image_url`, `video_url`, `audio_url`, etc.) accept publicly-reachable HTTPS URLs only. Upload your asset first (GCS / S3 / your CDN) and pass the resulting URL. Data-URIs and localhost URLs are rejected.
- For structured parameters (arrays / objects) send real JSON values, not stringified payloads.
- Monetary values are reported in USD; per-token / per-megapixel rates may be billed in micro-cents internally.
- Prefer `webhook_url` over polling for long-running predictions — see the Webhook Callback section.