# AI Video Generation

Generates videos from text or a reference image using several video providers.

- Repository: https://github.com/calesthio/OpenMontage (74341 stars)
- Category: Media
- License: AGPL-3.0
- Last updated: 2026-10-28
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add calesthio/OpenMontage --skill ai-video-gen -g -a claude-code -y`
Codex: `npx skills add calesthio/OpenMontage --skill ai-video-gen -g -a codex -y`
Cursor: `npx skills add calesthio/OpenMontage --skill ai-video-gen -g -a cursor -y`
Gemini CLI: `npx skills add calesthio/OpenMontage --skill ai-video-gen -g -a gemini-cli -y`

## Description

Generate AI videos from text prompts using multiple provider gateways. Use when: (1) Generating videos from text descriptions, (2) Creating AI-generated video clips for content production, (3) Image-to-video generation with a reference image, (4) Choosing between video generation providers (VEO, Kling, Sora, Runway, Seedance, MiniMax, Gemini Omni). Supports gateways: HeyGen API, fal.ai API, Kling official direct API, and the Gemini API (Gemini Omni Flash).

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Video Generation (Multi-Gateway)

Generate AI videos from text prompts. Supports multiple providers via four API paths:

| Gateway | Env Variable | Providers | Tool |
|---------|-------------|-----------|------|
| **fal.ai** | `FAL_KEY` | **Seedance 2.0** (standard + fast), Kling v3/v2.1, MiniMax, VEO | `seedance_video`, `kling_video`, `minimax_video`, `veo_video` |
| **HeyGen** | `HEYGEN_API_KEY` | VEO 3.1, Kling Pro, Sora v2, Runway Gen-4, Seedance Pro / Lite (1.x) | `heygen_video` |
| **Kling Official** | `KLING_API_KEY` | Kling official Classic, Turbo, and basic Omni video | `kling_official_video` |
| **Gemini API** | `GEMINI_API_KEY` / `GOOGLE_API_KEY` | Gemini Omni Flash (generation + conversational editing) | `gemini_omni_video` |

**Iterative editing, Gemini Omni.** When the brief calls for *refining an existing clip* (add/remove objects, restyle, change lighting or on-screen text) rather than regenerating, Gemini Omni Flash is the only provider in the fleet with stateful multi-turn editing. See Layer 3 `gemini-omni` for the authoritative prompting guide (reference-image tags, timecode syntax, edit-prompt rules) before writing any prompt for it.

**Preferred premium default, Seedance 2.0.** When any premium gateway is configured (`FAL_KEY` → `seedance_video`, or HeyGen's Video Agent / Avatar Shots path), Seedance 2.0 is the preferred default for cinematic, trailer, and high-fidelity clip work. It is the only model in the fleet with **single-pass native synchronized audio, multi-shot generation, director-level camera control, and lip-sync from quoted dialogue**, and it ranks #1 on Artificial Analysis Elo as of early 2026. Switch off it only when the user has a specific reason (budget, provider preference, stylistic fit like VEO for photoreal landscape or Kling for specific anime look). See Layer 3 `seedance-2-0` for the authoritative prompting and parameter guide.

The rest: https://github.com/calesthio/OpenMontage/blob/HEAD/.agents/skills/ai-video-gen/SKILL.md