Thumbnail Expert chat.openai.com
Thumbnail Expert by charlygpts.com
#1 AI Tool for YouTube Thumbnails: Obtain CTR-optimized thumbnails for your videos in seconds.
Capabilities:
- Retrieves or takes actions outside of ChatGPT
- Browsing
- DALL·E Images
- Data Analysis
This GPT has 4 good starting prompts. I especially like (and use Mode 2) to analyze the image and suggest improvements.