A-Instant

An AI-powered text assistant that enhances productivity by enabling quick in-context interactions with AI models directly from any application on your Mac.

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Key Features

Universal

Works in any application where you can highlight text, eliminating the need to switch between apps.

Multiple AI Providers

Supports OpenAI, Anthropic, Google, DeepSeek, Mistral, xAI, Groq, Custom OpenAI-compatible API providers and local models via Ollama.

Customizable Activation

Choose your preferred trigger key (defaults to right shift) for instant AI access.

Prompt Library

Save and reuse complex or frequently used prompts to streamline your workflow.

How It Works

  1. Select text in any application
  2. Double-tap your A-Instant trigger key
  3. Enter a prompt for the AI model
  4. Get instant AI response, either replacing the selected text or displaying in a separate area

A-Instant eliminates:

  • App switching
  • Copy/pasting
  • Waiting for results
Simply highlight, double-tap, and you're done!

See A-Instant in Action

Standard Mode

In this mode, the selected text is directly replaced by the AI's response. This is useful for quick edits and transformations.

Example prompts:

  • "Translate this text into French"
  • "Add humor and sarcasm to this comment"
  • "Optimize this code for performance"
  • "Correct the grammar and improve the flow"
Translation Example

Non-Destructive Mode

In this mode, the AI's response is displayed separately, leaving the original text untouched. This is ideal for summarizing or analyzing text without altering it.

Example prompts:

  • "Summarize this article in three sentences"
  • "Create a polite response to this email"
  • "Explain what this code snippet does"
  • "Extract key dates and locations from this text"
Rubik's Cube Example

Installation

Requirements

  • macOS 14.0 or later
  • Access to an AI provider API or local Ollama

Steps

  1. Download the latest release from the Releases page
  2. Unzip the file
  3. Move the app to your Applications folder
  4. When prompted, grant accessibility permissions in System Settings > Privacy & Security > Accessibility
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