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Syntheo provides no model: transcription and summaries go through your own servers. Configure them before your first recording, otherwise Syntheo refuses to start listening.
1

Install Syntheo

Download the Linux package or the Windows installer from GitHub Releases. See Install the app to choose the right file.
2

Finish onboarding

On first launch, the “Welcome to Syntheo” screen presents the three steps of a note: Prepare, Listen, and Synthesis. Click “Open Syntheo”. No account is required.
3

Set up transcription

Open Settings (), “My servers” group, then Transcription:In “Server address”, enter your server’s address, for example http://localhost:8000/v1, then click “Test connection”. Then choose the model from the list.Choose a real-time transcription model: Syntheo does not keep the audio and therefore cannot transcribe a live capture afterward.
4

Set up synthesis

In the same group, open Synthesis and enter the address of your OpenAI-compatible language model server (vLLM, SGLang, llama.cpp, Ollama, LM Studio, TGI, or NIM). Click “Test connection”: Syntheo reads the list of served models. This model writes the summaries and answers when you ask a note a question.
5

Check the audio

Syntheo captures your microphone and the system audio (the other participants). If your system asks for permission to access the microphone, accept it. You can check the access status in Settings → Advanced → Permissions.
6

Start a first recording

On the home screen, click “Start a meeting” (). The note opens at the Prepare step. Click “Begin listening” in the capsule at the bottom of the window. Speak for a few seconds: the transcript appears in the right margin. Click “Finish”. The summary appears at the Synthesis step.
Details on protocols, accepted addresses, and API keys are in Set up transcription and AI.
http:// addresses are only accepted for this machine, a private network, or Tailscale. For a server reachable over the internet, use https://.

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Find your way around the app

  • The home screen greets you and shows the “Start a meeting” button, your active folders under “Your folders”, and the “Resume” list with your latest notes.
  • The palette “Search a note” () finds a note by its title or content, a folder, or a contact, and opens the other views: Settings, Templates, Folders, Contacts, Automations.
  • Folders group the meetings of a project, with a running thread and the agenda for the next meeting. See Folders and projects.
  • A note goes through three steps, shown in the capsule at the bottom of the window: 備 Prepare · 聴 Listen · 結 Synthesis.
  • “Ask the note” () opens the chat, which answers with the language model you configured.
  • Settings gathers your settings into five groups: “Me”, “My servers”, “Writing”, “My meetings”, and “Advanced”.
History goes through the home screen, the palette, and the Folders view: there is no permanent sidebar. You edit a note’s title directly at the top of the note. In the home screen replica below, click “Start a meeting”, a card under “Your folders”, or a note under “Resume”. A note that is not filed offers “File”. Hover over a row to show the “More actions” button (Open, Export…, Delete). The up and down arrows move from one note to the next. The palette opens with “Search a note” or . When empty, it offers your recent notes, the views under “Go to”, and all your notes. Type a word to search the titles, then the content. Browse the results with the arrows and close the palette with .

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Next steps

See Record a meeting for the full flow. If Syntheo does not hear the call or the transcript stays empty, start with Troubleshooting.