Live captions and translation, then a summary and a report. Hold a key and speak, and the words are typed at your cursor in any app.
FreeDownload for MacmacOS 14.2+ · Apple silicon
Translation and summaries use your own Claude Code or Codex subscription.
In an animated illustration a developer holds one key and speaks to type code, a student follows a lecture with live captions and a summary, and office workers in a meeting room have their meeting summarized live by Sotto and sent as a report.
The microphone picks up the whole team meeting in the room. Sotto summarizes it in the language it hears, with no translation, and when the meeting ends it writes a report in that same language that works as meeting minutes. For an online meeting, choose Both to take your own voice and the other people's together.
Follow an English lecture with a Korean translation and summary, including online group classes. Click the photo icon on the control panel to capture the lecture slide; it joins the summary and later the report. The report can be read in Korean or English and saved as a PDF.
Developers speak to the terminal instead of typing. Hold the key, say the command, and let go: the text is typed. An optional setting presses Return when you end with a word you choose (off by default). You can also dictate Korean into a chat window full of English messages.
Runs on Whisper large-v3 turbo inside the app and needs no AI subscription.
It is downloaded automatically on first launch (about 650 MB); dictation is not available until it finishes.
It detects the language you speak by itself; there is no model to choose.
Speech recognition is fixed to the app's default model (NVIDIA Nemotron).
It is downloaded once (about 630 MB) and runs on your Mac.
It is not a setting.
Made by your own Claude or ChatGPT subscription, through Claude Code or Codex, whichever you choose.
Each of the three tasks has its own model in Settings.
| Task | Claude Code | Codex |
|---|---|---|
| Translation | haiku | gpt-6-luna |
| Summary | sonnet | gpt-6.1-sol |
| Report | sonnet | gpt-6.1-sol |
The Codex report model shown is gpt-6.1-sol; Settings can change each model.
Live captions and translation of what your Mac plays, or what the microphone hears, in a floating window. A summary window opens with it.
Only the summary, with no live captions or translation. The control row at the bottom of the summary window has Play/Pause, Stop and Picture. The summary shows in your First language, your Second language or both.
Hold a key (Right Command by default, or record your own), speak, release, and the text appears at your cursor. It always uses Whisper large-v3 turbo and detects the language you speak. An optional setting presses Return when you end with a word you choose (off by default).
Select text in any app and press a shortcut (Control+Shift+C by default, or record your own) to see the translation in a bubble, in both directions between your First and Second language, and have it copied to the clipboard. If both languages are the same, you only get a short message.
Short summaries while you listen. On Stop the session is saved as a summary and a report in a folder you choose; with the same language in both, the report has one language only. A quiz is optional.
Choose System sound, Microphone or Both in the menu or in Settings. Both mixes your microphone and what your Mac plays into one transcript; use headphones with it.
Labels show who is speaking, for up to four voices.
Take a picture of a window with Control+Option+Command+P, or with the Picture button in the control row, so the session can read slides and screens.
You choose which one translates and summarizes, and it uses your own subscription.
Sotto starts at login on first run from Applications. The menu lists the four modes with their hotkeys (Control+Shift+S is Subtitle, Control+Shift+Z is Summary), Stop, Check for Updates and Restart. You can change the hotkeys in Settings.
Choose your First language (captions and summaries) and your Second language (what you listen to) from 39 options. They can be the same language: Dictation and Summary still work. Dictation detects the language you speak by itself.
It is a free app that lives in your Mac's menu bar.
Choose Subtitle or Summary in the menu bar, or press its hotkey, then press Play and play something. You can also switch the sound source to Microphone or Both.
Follow the captions or the summary, then press Stop to save the write-up.
Your Mac
audio stays here
Claude Code or Codex
no audio to the cloud
