Fluent is a native macOS AI writing assistant designed to help users draft, refine, and understand content across various applications while maintaining privacy through on-device context processing. Its main purpose is to provide AI-powered writing assistance that integrates seamlessly with the macOS ecosystem.

The product offers instant app context capture, allowing users to write with the right tone and chat with documents directly within their workflow. It supports follow-up conversations and comparisons while preserving original formatting. Users can bring their own AI models and customize actions with shortcuts for personalized workflows.

Fluent operates through its Smart Panel feature, which can be called in any macOS app to capture relevant context from selections, clipboard content, or window content. The Smart Panel runs customizable actions with the AI provider of the user's choice and can also function as a standalone tool for chatting with documents and pictures or prompting AI models quickly.

The benefits include maintaining workflow continuity by staying within applications, enhanced privacy through local processing options, and cost efficiency since users only pay for their own API usage. Use cases span general writing tasks like translation, grammar fixing, summarization, and content refinement across various macOS applications.

Fluent targets macOS users who need AI writing assistance across multiple applications, with specific mentions of educational institutions, teachers, and students receiving discounts. It integrates with over 500+ AI models through providers like OpenAI, Google, Anthropic, Grok, Mistral, OpenRouter, Straico, and supports local models through MLX, Ollama, or LM Studio.