macai: native macOS client for ChatGPT, Claude, Google Gemini and other LLM providers

macai (macOS AI) is a simple yet powerful native macOS client made to interact with modern AI services (ChatGPT, Claude, xAI (Grok), Google Gemini, Ollama and other compatible APIs).

Features

Core Capabilities

• Native macOS application built with SwiftUI for optimal performance and system integration
• Lightning fast search across all chats, messages, and personas
• Multi-LLM support including:
  • OpenAI ChatGPT models (gpt-4o, o1-mini, o1-preview and other)
  • Anthropic Claude
  • Google Gemini
  • xAI Grok
  • Local LLMs via Ollama
  • Any OpenAI-compatible API

Advanced Chat Features

• AI Personas with customizable:
  • System instructions
  • Temperature settings
• Intelligent message handling:
  • Streamed responses for real-time interaction
  • Adjustable chat context size
  • Automatic chat naming
• Rich content support:
  • Syntax-highlighted code blocks
  • Interactive HTML/CSS/JavaScript preview
  • Formatted tables with CSV/JSON export
  • LaTeX equation rendering

Privacy & Data Control

• 100% local data storage
• No telemetry or usage tracking
• Built-in backup/restore functionality with JSON export
• Complete control over API configurations and keys

User Experience

• System-native light/dark theme support
• Per-chat customizable system instructions
• Clean, native macOS interface
• Minimal resource usage compared to Electron-based alternatives

Screenshots:

Settings: the list of services

Settings: edit AI Persona: set system message, color, and temperature

Setting custom system message

Download for free or support ❤️

This is my personal project and I spend my spare time on it. You can always download macai for free by entering 0 in the price field. Also, this application is open source.

However, paid downloads, even for a minimal amount, inspire me to spend more free time on this app, and I have tons of ideas for new functionality ✨