AI Video Generation

# AI Video Generation

Generate videos with the full RunComfy video-model catalog through one CLI — text-to-video, image-to-video, and Veo's video-extend. This skill picks the right model for the user's intent and ships the documented prompt patterns + the exact `runcomfy run` invoke for each.

[runcomfy.com](https://www.runcomfy.com/?utm_source=skills.sh&utm_medium=skill&utm_campaign=ai-video-generation) · [Video models](https://www.runcomfy.com/models?utm_source=skills.sh&utm_medium=skill&utm_campaign=ai-video-generation) · [CLI docs](https://docs.runcomfy.com/cli/introduction?utm_source=skills.sh&utm_medium=skill&utm_campaign=ai-video-generation)

## Powered by the RunComfy CLI

```bash # 1. Install (see runcomfy-cli skill for details) npm i -g @runcomfy/cli # or: npx -y @runcomfy/cli --version

# 2. Sign in runcomfy login # or in CI: export RUNCOMFY_TOKEN=<token>

# 3. Generate runcomfy run <vendor>/<model>/<endpoint> \ --input '{"prompt": "..."}' \ --output-dir ./out ```

CLI deep dive: [`runcomfy-cli`](https://www.skills.sh/agentspace-so/runcomfy-agent-skills/runcomfy-cli) skill.

## Install this skill

```bash npx skills add agentspace-so/runcomfy-agent-skills --skill ai-video-generation -g ```

---

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

### Text-to-video (t2v) — newest first

**HappyHorse 1.0** — `happyhorse/happyhorse-1-0/text-to-video` *(default)* > Currently #1 on Artificial Analysis Video Arena. Native synchronized audio generated in-pass (no separate Foley step). Native 1080p, up to ~15s, strong multi-shot character consistency. > Pick for: general-purpose t2v, ad creative with audio, social-media clips, multi-shot narratives. > Avoid for: audio-driven lip-sync to a specific voiceover MP3 — use **Wan 2-7**.

**Kling 3.0 4K** — [`kling/kling-3.0/4k/text-to-video`](https://www.runcomfy.com/models/kling/kling-3.0/4k/text-to-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=ai-video-generation) > Kling's latest, 4K output, strong multi-shot character identity, premium camera language. > Pick for: hero shots, final-delivery 4K cuts, multi-shot character narratives. > Avoid for: cost-sensitive iteration — drop to **Kling 2-6 Pro** or **Standard** i2v.

**Seedance v2 Pro** — `bytedance/seedance-v2/pro` > ByteDance flagship — multi-modal (up to 9 reference images, 3 reference videos, 3 reference audio), in-pass synchronized audio, cinematic motion refinement, lens language honored. > Pick for: cinematic ad frames, multi-reference composition (subject + scene + audio refs), 21:9 anamorphic looks. > Avoid for: simple "single prompt → clip" jobs — overpowered, slower.

**Seedance v2 Fast** — [`bytedance/seedance-v2/fast`](https://www.runcomfy.com/models/bytedance/seedance-v2/fast?utm_source=skills.sh&utm_medium=skill&utm_campaign=ai-video-generation) > Faster variant of Seedance v2 Pro, same multi-modal capabilities. > Pick for: iteration on Seedance v2 compositions before locking a final on Pro. > Avoid for: hero-shot final delivery.

**Wan 2-7** — `wan-ai/wan-2-7/text-to-video` > Open-weights flagship, `audio_url` field for audio-driven lip-sync, pairs natively with Wan image models. > Pick for: dialog scenes where mouth must sync to a specific voiceover file; open-weights pipeline requirement. > Avoid for: in-pass audio generation (no MP3 input) — use **HappyHorse 1.0**.

**Kling 2-6 Pro** — [`kling/kling-2-6/pro/text-to-video`](https://www.runcomfy.com/models/kling/kling-2-6/pro/text-to-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=ai-video-generation) > Previous Kling tier — still strong quality at much lower cost than 3.0 4K. > Pick for: production at scale where 3.0 4K is too expensive. > Avoid for: top-tier hero shots — use **Kling 3.0 4K**.

**Seedance 1-5 Pro** — [`bytedance/seedance-1-5/pro/text-to-video`](https://www.runcomfy.com/models/bytedance/seedance-1-5/pro/text-to-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=ai-video-generation) > Previous Seedance generation, cheaper. > Pick for: identity-stable batches between 1-5 generations; cost-sensitive baseline. > Avoid for: new work — prefer **Seedance v2 Pro** or **Fast**.

### Image-to-video (i2v) — newest first

**HappyHorse 1.0 I2V** — `happyhorse/happyhorse-1-0/image-to-video` *(default)* > Animate any still with in-pass audio described in prompt, strong identity preservation. > Pick for: animating a generated portrait or product still, vertical social clips, voiceover-described audio. > Avoid for: physics-accurate object motion — use **Veo 3-1**.

**Veo 3-1** — [`google-deepmind/veo-3-1/image-to-video`](https://www.runcomfy.com/models/google-deepmind/veo-3-1/image-to-video?utm_source=skills.sh&utm_medium=skill&utm_campaign=ai-video-generation) > Google's flagship — physics-respecting motion, strong object permanence ("rotates 180 degrees" = 180°), pairs with `extend-video` for longer clips. > Pick for: product spins, physics-accurate motion, scenes where "no other motion" must