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Askimo

ChatGPT Desktop App - Free OpenAI Desktop Client for Mac, Windows & Linux

ChatGPT Desktop App - Askimo OpenAI Client

Section titled “ChatGPT Desktop App - Askimo OpenAI Client”

Looking for a ChatGPT desktop app? Askimo is a free, open-source OpenAI desktop client that works on Mac, Windows, and Linux. Get a powerful ChatGPT desktop application with advanced features, multiple AI models, and complete control over your AI conversations.

Why Choose Askimo as Your ChatGPT Desktop App?

Section titled “Why Choose Askimo as Your ChatGPT Desktop App?”
  • Free & Open Source - No subscription required for the desktop client
  • All GPT Models - Access GPT-5.2, GPT-4o, o1, o3-mini, and more
  • Cross-Platform - Works on macOS, Windows, and Linux
  • Multiple AI Models - Use OpenAI alongside Claude, Gemini, and Ollama
  • Privacy-Focused - Your API key and conversations stay secure
  • Advanced Features - Custom directives, RAG, chat search, and themes

Setting Up OpenAI in Askimo Desktop App

Section titled “Setting Up OpenAI in Askimo Desktop App”

Connect Askimo App to OpenAI’s powerful language models including GPT-5.2, GPT-4o, o1, o3-mini, and more.

API Configuration

Section titled “API Configuration”
  • API Key: Your OpenAI API key (required)
  • Organization ID: (Optional) For team accounts
  • Default Model: Choose from:
    • gpt-5.2 - Latest flagship model with enhanced capabilities
    • gpt-4o - Highly capable multimodal model
    • o1 - Advanced reasoning model
    • o3-mini - Efficient reasoning model
    • gpt-4o-mini - Fast and affordable
  • Base URL: (Advanced) Custom endpoint for proxies
    • Default: https://api.openai.com/v1
  • Timeout: Request timeout in seconds (default: 60s)

Setting Up Your API Key

Section titled “Setting Up Your API Key”
  1. Visit OpenAI Platform
  2. Sign in or create an account
  3. Click “Create new secret key”
  4. Copy the key (you won’t see it again!)
  5. Paste it into Askimo’s OpenAI API Key field
  6. Click “Test Connection” to verify

Accessing Provider Settings

Section titled “Accessing Provider Settings”
  1. Click on the menu bar
  2. Select “Settings”
  3. Navigate to the “AI Providers” tab
  4. Select “OpenAI” from the provider list

Keyboard Shortcut: ⌘ + , (macOS) or Ctrl + , (Windows/Linux) then click “AI Providers”

Troubleshooting

Section titled “Troubleshooting”

Connection Failed?

  • Verify your API key is correct
  • Check your internet connection
  • Ensure you have API credits available
  • Try increasing the timeout setting

Model Not Available?

  • Some models require specific API access levels
  • Check the OpenAI Models page for availability