Tractus 0.4.3

2026-10-22 · GitHub release

Smart fix (AI suggests corrections for misheard words, line by line), numbers written as digits, and a Korean-with-English transcription engine.

Tractus turns recordings and memos into text on your Mac, then summarizes, searches and answers questions about them. New in 0.4.3: better transcripts — Smart fix, numbers as digits, and a Korean-with-English engine.

Smart fix. Press Smart fix above a transcript and AI reads the whole conversation, then suggests fixed versions of lines with misheard words. The transcript area glows while it works and suggestions appear section by section (about 1–2 minutes for an hour-long note). Each suggestion shows only the changed words under its line, with Accept and Dismiss, plus Accept all and Dismiss all. Suggestions marked Check number or Rewritten may be AI guesses and are left out of Accept all. Accepted lines show Smart fixed; the original text is kept and ⌘Z undoes. It fixes misheard words only — filler words, phrasing and line boundaries stay as spoken, and lines you edited are left alone. The transcript, title, memos, custom vocabulary and confirmed participant names go to the AI service chosen on the Summary tab, as with summaries.
Numbers as digits. Korean numbers spoken as words are written as digits in new transcripts ("삼십 프로" → "30프로", "이천이십칠 년" → "2027년"), leaving words that aren't numbers alone. On our meeting set the error rate went from 9.48% to 9.14%.
Transcription engine: Korean with English (BuzzASR). A new engine on the Models screen that's more accurate than the standard engine when Korean conversations mix in many English terms (English term recall 86% vs 72%). For Korean-only meetings the standard engine is slightly better, and this engine doesn't use custom vocabulary. Download it and press Use as default to switch (1.7 GB).
Fixed: in minutes, Check number no longer flags correct numbers just because the transcript spelled them out in Korean words — also for existing notes.
Install: open the DMG and drag Tractus.app to Applications; you need brew install ffmpeg. The build isn't notarized yet — use System Settings › Privacy & Security › Open Anyway on first launch. Apple Silicon, macOS 14.4+.

Guides: Setup · Usage · Agents (MCP)