Wan 2 7

# Wan 2.7 — Pro Pack on RunComfy

[runcomfy.com](https://www.runcomfy.com/?utm_source=skills.sh&utm_medium=skill&utm_campaign=wan-2-7) · [Text-to-video](https://www.runcomfy.com/models/wan-ai/wan-2-7/text-to-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=wan-2-7) · [GitHub](https://github.com/agentspace-so/runcomfy-skills/tree/main/wan-2-7)

Wan-AI's **Wan 2.7** — flagship video model with multi-reference conditioning and audio-driven lip-sync — hosted on the **RunComfy Model API**.

```bash npx skills add agentspace-so/runcomfy-skills --skill wan-2-7 -g ```

## When to pick this model (vs siblings)

| You want | Use | |---|---| | Lip-sync video to an audio track you supply | **Wan 2.7** (`audio_url`) | | Multi-reference fine motion control | **Wan 2.7** | | Smooth transitions, accurate motion physics | **Wan 2.7** | | Currently-#1 blind-vote video model | HappyHorse 1.0 | | Multi-modal cinematic with image+video+audio refs + in-pass voice generation | Seedance 2.0 Pro | | Cinematic motion editing on existing footage | Kling Video O1 | | Ultra-fast iteration | LTX 2 |

If the user said "Wan" / "Wan 2.7" / "wan-ai" / "alibaba video" explicitly, route here regardless.

## 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>` instead of `runcomfy login`.

## Endpoints + input schema

### `wan-ai/wan-2-7/text-to-video`

| Field | Type | Required | Default | Notes | |---|---|---|---|---| | `prompt` | string | yes | — | Up to ~5000 chars / ~1500 tokens. | | `audio_url` | string | no | — | WAV/MP3, 3–30s, ≤15MB. **Drives lip-sync.** Omit → background music auto-generated. | | `aspect_ratio` | enum | no | `16:9` | `16:9`, `9:16`, `1:1`, `4:3`, `3:4`. | | `resolution` | enum | no | `1080p` | `720p` or `1080p`. | | `duration` | enum | no | `5` | 2–15 (whole seconds). | | `negative_prompt` | string | no | — | Up to 500 chars. Concrete issues to avoid. | | `enable_prompt_expansion` | bool | no | true | Auto-rewrites short prompts. Disable for literal control. | | `seed` | int | no | — | 0..2^31-1. Reuse for variants. |

## How to invoke

**Default (5s 1080p 16:9, prompt-expanded):**

```bash runcomfy run wan-ai/wan-2-7/text-to-video \ --input '{"prompt": "<user prompt>"}' \ --output-dir <absolute/path> ```

**Audio-driven lip-sync (your own track):**

```bash runcomfy run wan-ai/wan-2-7/text-to-video \ --input '{ "prompt": "Medium close-up of the spokesperson, warm key light, locked tripod, slight breathing motion.", "audio_url": "https://.../voiceover.mp3", "duration": 12, "aspect_ratio": "9:16" }' \ --output-dir <absolute/path> ```

**Literal control (no auto-expansion):**

```bash runcomfy run wan-ai/wan-2-7/text-to-video \ --input '{ "prompt": "<exactly what you want, verbatim>", "enable_prompt_expansion": false, "negative_prompt": "no subtitles, no flicker, no distorted hands" }' \ --output-dir <absolute/path> ```

## Prompting — what actually works

**Camera + motion in plain English.** "Slow dolly in", "locked tripod, low angle", "handheld follow", "crane move from above". Front-load the shot.

**One primary action per clip.** Don't pile up multiple competing actions. Pick the beat: "she turns, then smiles" not "she turns AND smiles AND a bus passes AND...".

**Use `negative_prompt` for concrete issues.** Good: "no subtitles, no watermark, no flicker". Bad (vague): "no bad lighting".

**Prompt expansion is on by default.** Short prompts get auto-rewritten by the model. For terse / literal prompts (e.g. brand-strict ad copy), disable with `enable_prompt_expansion: false`.

**Audio specs matter.** `audio_url` must be 3–30s, ≤15MB, WAV/MP3. Out-of-range files reject. Match audio length to clip duration.

**Iterate seeds.** Reuse the same seed when you want consistent output across variants of the same prompt. Change seed for genuine variety.

**Anti-patterns:** - Static-frame descriptions → motion will be vague. - Vague negatives ("no bad colors") → ignored. - Audio outside the 3–30s / 15MB / WAV-MP3 spec → rejected. - Prompts > 5000 chars / 1500 tokens → degraded output.

## Where it shines

| Use case | Why Wan 2.7 | |---|---| | **Lip-synced ads with custom voiceover** | `audio_url` accepts your track | | **Multi-language dub variants** | Same prompt, different `audio_url` per language | | **Multi-reference motion control** | Up to 5 reference media (image / video / voice) | | **Smooth transitions + motion physics** | Strong physics-aware motion priors | | **Negative-prompted clean output** | Targeted issue exclusion |

## Sample prompts (verified to produce strong results)

**Page example (product showcase):**

``` Cinematic medium shot of a product on a marble surface, soft studio lighting, slow subtle camera push-in, shallow depth of field, premium commercial look, crisp 1080p detail ```

**Lip-synced spokesperson (with