An image-to-video API turns an approved still image into motion while preserving the subject, styling, and composition as a starting point. For AI influencer content, that is usually safer and cheaper than asking a text-to-video model to reinvent the character in every clip.

## Why Start from an Image?

The still image becomes a visual contract. A creative team can approve the face, outfit, product placement, lighting, and framing before paying for video inference.

That changes the economics of a content pipeline:

- Cheap image iterations happen first
- Only approved concepts consume video credits
- The source image gives the video model a stronger identity anchor
- Failed creative directions are easier to diagnose
- The same still can feed several motion experiments

<Callout type="tip" title="Image First, Motion Second">
  Treat the source image as a keyframe chosen by the art director. If it is not
  campaign-ready as a still, animation will not rescue it.
</Callout>

## Image-to-Video Model Options

MakeInfluencer exposes several models through one API contract:

| Model API                                                 | Useful when                                                             |
| --------------------------------------------------------- | ----------------------------------------------------------------------- |
| [Seedance 2 Fast](/developers/models/seedance-2-fast-api) | Fast iteration, 480p–1080p options, generated audio, optional end frame |
| [HappyHorse 1](/developers/models/happyhorse-1-api)       | Smooth cinematic camera movement at 720p or 1080p                       |
| [Kling 3 Pro](/developers/models/kling-3-pro-api)         | High-quality motion and detailed scenes                                 |
| [Veo 3.1](/developers/models/veo-3-1-api)                 | Premium visual workflows and model comparison                           |
| [Sora 2](/developers/models/sora-2-api)                   | Narrative or cinematic directions that fit its input contract           |

Do not choose a model from a static blog table alone. Fetch `GET /api/v1/models/{modelId}` because supported durations, aspect ratios, audio controls, and references are model-specific.

## Production Workflow

<StepFlow>
  <Step
    number="1"
    title="Approve the Source"
    description="Select a character-consistent image with correct anatomy, product details, lighting, and frame composition."
  />
  <Step
    number="2"
    title="Write Motion, Not Appearance"
    description="Describe subject movement, camera movement, environmental motion, pacing, and audio intent instead of redescribing the whole image."
  />
  <Step
    number="3"
    title="Preview Credits"
    description="Quote the exact duration, resolution, references, and audio setting before creating."
  />
  <Step
    number="4"
    title="Queue with Idempotency"
    description="Use one stable key per planned clip so retries cannot create duplicate paid jobs."
  />
  <Step
    number="5"
    title="Review and Route"
    description="Poll the owned result, approve it, or try another model with the same source and a comparable prompt."
  />
</StepFlow>

## Example with Seedance 2 Fast

```bash
curl --request POST \
  https://www.makeinfluencer.ai/api/v1/models/seedance2fast/preview-credits \
  --header "Authorization: Bearer $MAKEINFLUENCER_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "input": {
      "prompt": "She turns toward camera and smiles; subtle hair movement; slow push-in",
      "startFrameUrl": "https://example.com/approved-creator.jpg",
      "aspectRatio": "9:16",
      "duration": 5,
      "resolution": "720p",
      "generateAudio": true
    }
  }'
```

When the quote is approved, change `preview-credits` to `generations` and add an idempotency header. The create response returns `kind: "video"` and a generation ID.

Poll it here:

```bash
curl https://www.makeinfluencer.ai/api/v1/generations/video/GENERATION_ID \
  --header "Authorization: Bearer $MAKEINFLUENCER_API_KEY"
```

## Writing Better Motion Prompts

A useful image-to-video prompt has four layers:

1. **Subject action:** turns, walks, raises the product, speaks, looks off-camera.
2. **Camera action:** push-in, tracking shot, orbit, handheld follow, locked frame.
3. **Environmental motion:** hair, fabric, steam, leaves, reflections, background people.
4. **Pacing and mood:** restrained, energetic, dreamy, documentary, commercial.

Avoid asking for several scene changes in a short clip. Every cut creates another opportunity for the face, body, or product to drift.

### Example Prompt Pattern

> The creator lifts the bottle toward camera and gives a small confident smile. Slow 35mm push-in, gentle window-light shift, subtle hair and curtain movement. Premium skincare commercial, restrained motion, no scene cut.

## Margin-Safe Batch Generation

For a paid product, separate exploration from production.

- Generate 3–5 still concepts
- Approve one or two
- Preview one low-cost or fast video model
- Generate a single clip per approved image
- Escalate only the winner to a premium model or higher resolution

The same MakeInfluencer credit balance supports every stage, so the product can show one budget instead of reconciling provider invoices.

## Image-to-Video API FAQ

### Does image-to-video preserve a character perfectly?

No model guarantees perfect identity. A strong approved source reduces drift, but review the face, hands, clothing, and product throughout the clip.

### Can I use an end frame?

Some models support it, including Seedance 2 Fast. Always check the live model schema and capabilities before showing the field in your product.

### Can the model create audio?

It depends on the model. Seedance 2 Fast exposes a generated-audio option. For controlled speech from uploaded audio, use [InfiniteTalk](/developers/models/infinitetalk-api).

### Where can I compare all video endpoints?

Open the [AI video API model directory](/developers/models?kind=video). Every model page includes current fields, a sample request, credit preview, and polling route.


Turn approved creator images into video with an AI image-to-video API, model routing, credit previews, idempotent jobs, and a margin-safe production workflow.

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