fluid-altic

fluid-altic is a free, open-source dictation app for macOS that turns your speech into text with on-device AI. It combines a local speech-to-text engine with Fluid-1, a model that cleans up rough dictation — fixing capitalization, formatting dates and names, and adjusting tone based on which app you're using. Everything runs on your Mac, so no data leaves your machine. The app works offline, supports 40+ languages, and is optimized for Apple Silicon and Intel Macs running macOS 15.0 or later.

The app has two layers. FluidVoice handles the core dictation — you press a hotkey (or the Option key), speak, and text appears in any text field. Fluid-1 is the on-device AI that polishes the raw transcription. It adapts tone per app: Slack gets casual text, Mail gets formal writing, GitHub gets structured notes. You can also customize prompts for each app. The app supports multiple speech models — Nemotron, Whisper, Parakeet, Cohere Transcribe, and Apple Speech — and routes between them to balance speed and accuracy. Everything runs locally on Apple Silicon or Intel Macs, with CoreML and Metal optimizations for low latency and battery efficiency. There's also an option to use cloud AI providers like OpenAI or Groq for post-processing if you prefer.

FluidVoice is built for developers, writers, and anyone who types a lot. It's especially useful for coding — you can dictate commands, code edits, and documentation into editors like VS Code, Cursor, and Xcode. The app is free, open source (GPLv3), and has been downloaded over 50,000 times. It supports 40+ languages and runs on macOS 15.0 or later. If you want to type faster without leaving your keyboard, FluidVoice is a solid, privacy-focused option.