Fluent is a native macOS AI writing assistant designed to help users draft, refine, and understand content across various applications. Its main purpose is to enhance writing productivity by providing AI-powered assistance directly within any macOS app while maintaining privacy through on-device context processing.

Key features include instant app context capture, writing with the right tone, chatting with documents and pictures, follow-up and comparison capabilities, preservation of original formatting, support for bringing your own AI model, and customizable actions with shortcuts. The Smart Panel is Fluent's main interface, which can be called in any macOS app to capture relevant context from selections, clipboard, or window content.

Fluent works through its Smart Panel interface, which is extremely fast and ergonomic. It captures relevant context from selections, clipboard, or window content and can run customizable actions with the AI provider of your choice. The Smart Panel can also function as a standalone tool to chat with documents and pictures or prompt any AI model quickly.

Benefits include staying focused on tasks rather than tools, maintaining workflow continuity, and generating content instead of writing manually. Use cases involve translation, grammar fixing, summarization, and various writing tasks across different applications while preserving privacy through local processing options.

The product targets macOS users who need AI writing assistance across multiple applications. It supports integrations with various AI providers including OpenAI, Google, Anthropic, Grok, Mistral, OpenRouter, Straico, Apple Intelligence, and local MLX models. Technical details include support for over 500+ models, MCP integration with 9 built-in tools and nearly 7000 external servers, and local storage of history and memory.