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Audio & Voice AI

Hex

Hex is a Rust desktop voice-dictation application that captures speech through a shortcut, transcribes it with an on-device model and pastes the text into the active application. It supports Apple silicon Macs running macOS 15 or newer and has a Linux beta with a smaller feature set. The project also provides a TypeScript SDK.

Independent OpenViST project profile, based on linked sources.

Hex — OpenViST project profile in Audio & Voice AI.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Hex when you want shortcut-triggered speech input in a desktop app and can complete its local model and macOS permission setup.

Who it is for

  • Mac users who want to dictate text directly into the app they are using.
  • People who need local speech transcription for ordinary dictation.
  • Developers exploring the project's TypeScript SDK.

Documented uses

  • Convert spoken words into text and insert them at the current focus.
  • Correct names and preferred spellings before text is pasted.
  • Use optional voice actions or voice commands as separate workflows.
Before you choose

Requirements & limits

The documented macOS app supports Apple silicon Macs running macOS 15 or newer. Linux is a beta requiring a source build or Nix.

  • Initial macOS setup requires Microphone, Input Monitoring and Accessibility permissions, plus a downloaded transcription model.
  • Voice Action and voice commands are optional and disabled by default; provider-backed rewriting is separate from local transcription.
  • Linux has a smaller feature set than the macOS app and requires a source build or Nix.
  • The project repository specifies the MIT license.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Install Hex and prepare local dictation on macOS

Install Hex on an Apple silicon Mac and complete the documented permission and local model setup.

Before you start

  • Apple silicon Mac running macOS 15 or newer
  • Internet access to download the app and transcription model

Steps

  1. Download and open the signed DMG, move Hex.app to Applications, and launch it.

  2. Complete setup by granting Microphone, Input Monitoring and Accessibility permissions.

  3. Download the transcription model when prompted.

Expected outcome

Hex is set up for shortcut-triggered, on-device dictation into the foreground app.

Guide limitations

  • These instructions cover macOS, not the Linux beta.
  • The model download requires access to Hugging Face and its model download CDN on managed networks.
Evidence and transparency

Sources & review

Source record details
Source availability
Active
Sources checked
13 October 2026
Original website title
anomalyco/hex · Official homepage title · retained in its source language