Use Echoo with OpenAI / ChatGPT
Connect Echoo to OpenAI GPT models for powerful AI text transformation on macOS. Use GPT-4, GPT-5, and more with keyboard shortcuts.
Setup Guide
Get an OpenAI API key
Visit platform.openai.com, create an account, and generate an API key.
Open Echoo settings
Click the Echoo icon in your menu bar and open Settings.
Select OpenAI as provider
Navigate to the AI Provider section and select OpenAI.
Paste your API key
Enter your API key. It's stored securely in Apple Keychain.
Choose a model
Select GPT-5.2 for best quality, GPT-5 Mini for speed, or GPT-4.1 Nano for low-cost tasks.
Features
Supported Models
Frequently Asked Questions
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Get Started with OpenAI
Download Echoo and connect to OpenAI in minutes.