---
title: ToolRouter — Agent Use Case Guide
description: Step-by-step guide for completing a task with a specific AI agent using ToolRouter.
url: https://toolrouter.com/tools/video-editor/use-cases/resize-for-platforms/chatgpt
---
# How to Resize Videos for Platforms with ChatGPT

ChatGPT brings platform expertise to video resizing, recommending the best aspect ratios and crop strategies for each social channel. Describe your distribution plan and ChatGPT produces all platform versions, suggesting framing adjustments where content would otherwise be lost in the crop.

## Setup

{"mcpServers":{"toolrouter":{"command":"npx","args":["-y","toolrouter-mcp"]}}}

## Steps

1. Configure ToolRouter in ChatGPT via MCP settings
2. Share your video: "I need this in formats for every social platform"
3. ChatGPT creates resized versions for each platform via ToolRouter
4. Refine: "The Instagram version crops out the text — can you adjust the framing?"
5. Get all versions exported and ready to upload

## Example Prompt

```
Resize my marketing video for all social platforms. I need: 16:9 for YouTube, 9:16 for TikTok and Reels, 1:1 for LinkedIn, and 4:5 for Instagram feed. Keep the main subject visible in all versions.
```

## Tips

- ChatGPT can recommend which aspect ratio works best for your content type
- Ask for platform-specific export settings (resolution, bitrate, codec)
- Request a quick preview of each version before final export
