Image To Video

# Image-to-Video — Pro Pack on RunComfy

[runcomfy.com](https://www.runcomfy.com/?utm_source=skills.sh&utm_medium=skill&utm_campaign=image-to-video) · [HappyHorse I2V](https://www.runcomfy.com/models/happyhorse/happyhorse-1-0/image-to-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=image-to-video) · [Wan 2.7](https://www.runcomfy.com/models/wan-ai/wan-2-7/text-to-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=image-to-video) · [Seedance 2.0 Pro](https://www.runcomfy.com/models/bytedance/seedance-v2/pro?utm_source=skills.sh&utm_medium=skill&utm_campaign=image-to-video) · [GitHub](https://github.com/agentspace-so/runcomfy-skills/tree/main/image-to-video)

**Image-to-video, intent-routed.** This skill doesn't lock you to one model — it picks the right i2v model in the RunComfy catalog based on what the user actually wants: portrait animation, custom-voiceover lip-sync, or multi-modal composition.

```bash npx skills add agentspace-so/runcomfy-skills --skill image-to-video -g ```

## Pick the right model for the user's intent

| User intent | Model | Why | |---|---|---| | Animate a portrait — keep identity stable | **HappyHorse 1.0 I2V** | #1 on Artificial Analysis Arena (Elo 1392); strong facial fidelity | | Product reveal / 360 / macro motion | **HappyHorse 1.0 I2V** | Geometry preservation + smooth camera moves | | Native synchronized ambient audio in one pass | **HappyHorse 1.0 I2V** | In-pass audio synthesis | | Animate **and** lip-sync to a **custom voiceover track** | **Wan 2.7 + `audio_url`** | Accepts your own MP3/WAV (3–30s, ≤15MB) and drives lip-sync to it | | Multi-language dub variants (same image, different audio per call) | **Wan 2.7 + `audio_url`** | Same shot, swap `audio_url` per language | | Multi-modal — image + reference video + reference audio together | **Seedance 2.0 Pro** | Up to 9 image refs, 3 video refs (2–15s each), 3 audio refs | | Brand-consistent narrative with character ref + scene ref + voice ref | **Seedance 2.0 Pro** | Image holds identity, video holds scene, audio holds voice | | Default if unspecified | **HappyHorse 1.0 I2V** | Best all-round quality + native audio |

The agent reads this table, classifies the user's intent, and picks the matching subsection below.

## Prerequisites

1. **RunComfy CLI** — `npm i -g @runcomfy/cli` 2. **RunComfy account** — `runcomfy login` opens a browser device-code flow. 3. **CI / containers** — set `RUNCOMFY_TOKEN=<token>`. 4. **A source image URL** — JPEG/PNG/WebP, min 300px, ≤10MB; aspect 1:2.5 to 2.5:1 (HappyHorse) — other models have similar specs.

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## Route 1: HappyHorse 1.0 I2V — default for portrait / product / general animation

**Model**: `happyhorse/happyhorse-1-0/image-to-video` · **Arena rank**: #1 (Elo 1392)

### Schema

| Field | Type | Required | Default | Notes | |---|---|---|---|---| | `image_url` | string | yes | — | JPEG/JPG/PNG/WEBP. Min 300px. Aspect 1:2.5–2.5:1. ≤10MB. | | `prompt` | string | yes | — | ≤5000 non-CJK or 2500 CJK chars. **Motion / camera / lighting** description. | | `resolution` | enum | no | `1080P` | `720P` or `1080P`. | | `duration` | int | no | 5 | 3–15 seconds. | | `seed` | int | no | 0 | Reuse for variant comparisons. | | `watermark` | bool | no | true | Provider watermark toggle. |

Output aspect = input aspect. No independent reframing.

### Invoke

```bash runcomfy run happyhorse/happyhorse-1-0/image-to-video \ --input '{ "image_url": "https://.../portrait.jpg", "prompt": "Gentle camera drift around the subject'\''s face, subtle breathing motion, identity-stable features, soft natural light." }' \ --output-dir <absolute/path> ```

### Prompting tips

- **Lead with motion verbs**: "drift", "dolly in", "orbit", "tilt up", "reveal", "blink", "breathe". Front-load what's MOVING. - **Don't restate the image** — the model sees it. Focus tokens on what changes. - **Preservation goals explicit**: "identity-stable features", "packaging unchanged", "background geometry stable". - **Lighting evolution**: "rim light intensifying", "shadows shortening as camera rises". - **One beat per clip** — single primary motion (orbit OR dolly OR tilt OR character action).

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## Route 2: Wan 2.7 + `audio_url` — when the user has a custom voiceover

**Model**: `wan-ai/wan-2-7/text-to-video` (NOT `/image-to-video` — Wan 2.7's t2v endpoint accepts an `audio_url` that drives lip-sync)

**Note on i2v with Wan 2.7**: Wan 2.7's primary i2v animation isn't on a dedicated endpoint here. For pure i2v (image animated by motion prompt only), prefer **HappyHorse i2v**. Use Wan 2.7 specifically when the user has a custom audio track they want lip-synced to a generated talking-head clip.

### Schema (Wan 2.7 t2v with audio)

| Field | Type | Required | Default | Notes | |---|---|---|---|---| | `prompt` | string | yes | — | Up to ~5000 chars. Describe the talking-head shot: framing, lighting, motion. | | `audio_url` | string | yes (for lip-sync) | — | WAV/MP3, 3–30s, ≤15MB. **Drives lip-sync