wan-2-7
prime-skills/runcomfy-agent-skills
Generate text-to-video with Wan 2.7's audio-driven lip-sync and multi-reference motion control on RunComfy.
What is wan-2-7?
Wan 2.7 is Wan-AI's flagship video generation model hosted on RunComfy, specializing in audio-driven lip-sync, smooth motion physics, and multi-reference conditioning. Use it when you need precise lip-sync to custom audio, multi-language dubs, or fine motion control; route to HappyHorse 1.0 for blind-vote quality, Seedance 2.0 for in-pass voice generation, Kling for motion editing, or LTX 2 for speed.
- Generate 2–15 second videos from text prompts with optional audio-driven lip-sync via audio_url
- Support multi-reference conditioning (up to 5 image/video/voice references) for fine motion control
- Auto-expand short prompts or disable expansion for literal brand-strict control
- Output in 5 aspect ratios (16:9, 9:16, 1:1, 4:3, 3:4) at 720p or 1080p resolution
- Accept concrete negative prompts to exclude specific issues (subtitles, flicker, distorted hands)
- Seed-based iteration for consistent variants or genuine variety
How to install wan-2-7
npx skills add https://github.com/prime-skills/runcomfy-agent-skills --skill wan-2-7- RunComfy CLI: npm i -g @runcomfy/cli
- RunComfy account: runcomfy login (browser device-code flow) or RUNCOMFY_TOKEN env var for CI/containers
How to use wan-2-7
- 1.Install RunComfy CLI globally and authenticate with runcomfy login or set RUNCOMFY_TOKEN
- 2.Craft your prompt focusing on camera motion and one primary action (e.g., 'slow dolly in, locked tripod')
- 3.(Optional) Prepare audio file (WAV/MP3, 3–30s, ≤15MB) and host at a public URL for lip-sync
- 4.Run runcomfy run wan-ai/wan-2-7/text-to-video with --input JSON (prompt, audio_url, duration, aspect_ratio, resolution, etc.) and --output-dir
- 5.Check exit code: 0 = success, 77 = auth failed, 75 = timeout/retry, 65 = schema mismatch; see docs.runcomfy.com/cli/troubleshooting for full reference
Use cases
- Generate lip-synced ads with custom voiceover by passing audio_url (WAV/MP3, 3–30s, ≤15MB)
- Create multi-language dub variants by reusing the same prompt with different audio tracks
- Produce smooth cinematic product showcases with camera motion (dolly, crane, handheld) and shallow depth of field
- Generate vertical 9:16 platform-native shorts (TikTok, Reels, Shorts) with precise framing
- Iterate on motion and composition by reusing seeds while tweaking prompts or aspect ratios
- Video producers and editors needing audio-sync without separate post-production
- Ad agencies and marketers creating branded short-form video at scale
- Content creators producing multi-language or multi-variant campaigns
- Developers building video generation into applications via RunComfy CLI
- Anyone prioritizing smooth motion physics and multi-reference control over speed
wan-2-7 FAQ
Use Wan 2.7 for audio-driven lip-sync, multi-reference motion control, and smooth transitions. Use HappyHorse 1.0 if blind-vote quality is your top priority and you don't need lip-sync.
Pass audio_url (WAV/MP3, 3–30s, ≤15MB) in the input JSON. Omit audio_url to let the model auto-generate background music instead.
The request will be rejected. Ensure your audio file is within spec before passing the URL.
Leave enable_prompt_expansion: true (default) for natural prompts; disable it (false) only for terse, literal, or brand-strict copy where you need exact control.
Yes. Make multiple runcomfy run calls with different prompts or seeds, then concatenate the output files in post-production.
Full instructions (SKILL.md)
Source of truth, from prime-skills/runcomfy-agent-skills.
name: wan-2-7
displayName: "Wan 2.7 — Pro Pack on RunComfy"
description: >
Generate text-to-video with Wan 2.7 (Wan-AI's flagship motion model)
on RunComfy. Documents Wan 2.7's strengths (multi-reference conditioning,
audio-driven lip-sync via audio_url, smoother transitions, prompt
expansion), the duration / resolution / aspect-ratio schema, and
when to route to HappyHorse 1.0 / Seedance 2.0 / Kling / LTX 2
instead. Calls runcomfy run wan-ai/wan-2-7/text-to-video through
the local RunComfy CLI. Triggers on "wan", "wan 2.7", "wan-2-7",
"wan video", or any explicit ask to generate video with this model.
homepage: https://www.runcomfy.com
license: MIT
Wan 2.7 — Pro Pack on RunComfy
runcomfy.com · Text-to-video · GitHub
Wan-AI's Wan 2.7 — flagship video model with multi-reference conditioning and audio-driven lip-sync — hosted on the RunComfy Model API.
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
- RunComfy CLI —
npm i -g @runcomfy/cli - RunComfy account —
runcomfy loginopens a browser device-code flow. - CI / containers — set
RUNCOMFY_TOKEN=<token>instead ofruncomfy 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):
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):
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):
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 audio_url):
Medium close-up of a confident spokesperson in a softly-lit recording
booth, leaning slightly toward the camera, locked tripod, shallow depth
of field, warm key light from camera-left.
Vertical platform-native:
9:16 vertical short. A barista pulls a single espresso shot, steam
rising into morning sun, rich crema slowly forming. Close-up handheld,
shallow DOF, warm cafe ambience.
Limitations
- Duration cap 15s. For longer narratives, stitch multiple calls.
- No native 4K — 1080p ceiling.
- Aspect ratios — only the 5 documented values.
- Audio specs — 3–30s, ≤15MB, WAV/MP3 only.
- Reference media cap 5 (image + video + voice combined).
- For in-pass voice generation (no separate audio track), use Seedance 2.0 Pro — Wan accepts audio rather than generating it.
Exit codes
| code | meaning |
|---|---|
| 0 | success |
| 64 | bad CLI args |
| 65 | bad input JSON / schema mismatch |
| 69 | upstream 5xx |
| 75 | retryable: timeout / 429 |
| 77 | not signed in or token rejected |
Full reference: docs.runcomfy.com/cli/troubleshooting.
How it works
The skill invokes runcomfy run wan-ai/wan-2-7/text-to-video with a JSON body matching the schema. The CLI POSTs to https://model-api.runcomfy.net/v1/models/wan-ai/wan-2-7/text-to-video, polls the request, fetches the result, and downloads any .runcomfy.net/.runcomfy.com URL into --output-dir. Ctrl-C cancels the remote request before exit.
Security & Privacy
- Token storage:
runcomfy loginwrites the API token to~/.config/runcomfy/token.jsonwith mode 0600 (owner-only read/write). SetRUNCOMFY_TOKENenv var to bypass the file entirely in CI / containers. - Input boundary: the user prompt is passed as a JSON string to the CLI via
--input. The CLI does NOT shell-expand the prompt; it transmits the JSON body directly to the Model API over HTTPS. No shell injection surface from prompt content. - Third-party content: image / mask / video URLs you pass are fetched by the RunComfy model server, not by the CLI on your machine. Treat external URLs as untrusted; image-based prompt injection is a known risk for any image-edit / video-edit model.
- Outbound endpoints: only
model-api.runcomfy.net(request submission) and*.runcomfy.net/*.runcomfy.com(download whitelist for generated outputs). No telemetry, no callbacks. - Generated-file size cap: the CLI aborts any single download > 2 GiB to prevent disk-fill from a malicious or runaway model output.
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