generating-videos

yikart/AiToEarn · Agent Skill

Generates videos from text or images using Grok, supporting various resolutions and aspect ratios.

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SKILL.md contents

Original author text · read-only

Video Generation

Generates videos using Grok.

Model Selection Strategy

Use grok-imagine-video for video generation.

| Scenario | Use Model | Reason |

|----------|-----------|--------|

| Video 1-15s | grok-imagine-video | Grok supports direct 1-15s generation |

| Text-to-video | grok-imagine-video | Prompt-only generation |

| Image-to-video | grok-imagine-video | Uses one reference image |

| Video >15s | Generate multiple clips, then load editing-videos to concatenate | Grok max duration is 15s |

Language Rule

Video prompts MUST follow the user's language. If the user writes in Chinese, generate Chinese prompts; if in English, generate English prompts. If the user explicitly requests a specific language, use that language.

Grok Video Model

| Model | Speed | Quality | Max Duration | Use Case |

|-------|-------|---------|--------------|----------|

| grok-imagine-video | Fast | Good | 15s | Default video generation |

Parameters

| Parameter | Values | Default | Description |

|-----------|--------|---------|-------------|

| duration | 1-15 | model default | Video duration in seconds |

| resolution | 480p, 720p | 720p | Video resolution |

| aspectRatio | 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3 | 9:16 | Video aspect ratio |

| imageUrl | URL | none | Reference image URL for image-to-video |

Workflow

1. Call generateVideoWithGrok with prompt and optional parameters.

2. Poll getGrokVideoStatus every 30 seconds.

3. Maximum wait: 5 minutes.

4. Save completed output to draft unless the user explicitly asks for media library only.

Prompt Structure

[Subject & Background] + [Action] + [Style] + [Camera] + [Atmosphere] + [Audio]

Subject & Background

Specify the main focus and environmental context.

Examples:

  • "A young woman with long black hair wearing a red dress"
  • "White concrete apartment building with organic shapes and lush greenery"

Action

Describe what the subject is doing.

Examples:

  • "walks slowly towards the camera"
  • "transforms from liquid to solid"

Style

Add aesthetic direction.

Examples:

  • Film noir
  • Surrealism
  • Cyberpunk
  • 3D cartoon animation
  • Cinematic documentary

Camera

Describe movement and framing.

Examples:

  • "slow dolly-in"
  • "handheld tracking shot"
  • "close-up with shallow depth of field"

Atmosphere

Describe lighting, color, mood, and setting.

Examples:

  • "warm sunset lighting"
  • "misty morning atmosphere"
  • "high contrast studio lighting"

Audio

Include useful audio cues when relevant.

Examples:

  • "soft ambient city sounds"
  • "gentle piano music"
  • "footsteps on wet pavement"

Aspect Ratio Guidance

| Platform / Use | Aspect Ratio |

|----------------|--------------|

| TikTok, Reels, Shorts, mobile social video | 9:16 |

| YouTube landscape, website hero, presentation | 16:9 |

| Profile or square feed asset | 1:1 |

| Portrait-style content | 3:4 or 2:3 |

| Landscape social feed | 4:3 or 3:2 |

Long Video Strategy

For videos longer than 15 seconds:

1. Split the video into independent 15-second-or-shorter segments.

2. Generate each segment with generateVideoWithGrok.

3. Poll every task until complete.

4. Load editing-videos.

5. Use the video editing tool to concatenate the completed segments.

Keep prompts visually consistent across segments by repeating subject, style, lighting, camera language, and environment details.