Protect your sensitive conversations.
Steno is the highly-secure AI notetaker for confidential conversations in government and defence. No cloud, no usage limits and your private data never leaves your premises.
Everything runs locally. Zero cloud. Maximum privacy.
From raw audio to answers, every step happens on your machine, including the language model.
01 Record
Captures your mic, system audio, or both. Both sides of a video call are recorded without any bot or app joining.
02 Summarize
Pulls out a summary, key topics, and action items automatically. Nothing ever leaves your device.
03 Ask your notes
Ask questions across every meeting you've recorded. Surface decisions, action items, and themes — answered by a model running locally.
Built for focus. Engineered for privacy.
Every capability is designed around one principle: your audio never leaves your device.
No meeting bots
No bot joins your call, no unfamiliar face waiting in the room. Steno listens through your system audio instead — the meeting looks exactly like it always does.
Works with any meeting
Zoom, Google Meet, Microsoft Teams, Slack huddles. Steno works the same way every time.
Sovereign AI
You own the entire stack — models and data stay on your device or network, under your control. Works offline on planes, in hospitals, in restricted areas.
Chat with your notes
Ask questions across any note or recording. Surface decisions, action items, and key themes instantly.
No data leaves
No network requests carry your meeting content. Recordings, transcripts, and summaries stay on your device from the moment you launch it.
AI notepad
Jot notes during a recording. They're merged with the transcript to shape the AI summary.
99 languages
Whisper auto-detects the language spoken. Works equally well across multilingual meetings.
Open source
Every line of code is public. Audit it yourself, fork it, or verify our privacy claims — nothing is hidden behind a black box.
AI agent ready
Summaries and notes save as plain Markdown. Pipe into any AI agent, vault, or workflow your team already runs.
Your model, your choice.
6 models run entirely on your machine. Or connect to any major provider with your own key.
- Fully privateRecordings, transcripts, and summaries never leave your machine.
- Works offlineNo internet required. Works on planes, in basements, anywhere.
- No API costsUnlimited summaries after setup — no per-query fees, ever.
- 6 models includedEverything bundled at install — no downloads, no configuration.
Enterprise
AI for confidential workflows.
If your meetings contain confidential data, you can't send audio to a third party. Steno is built for people who understand this.
Because your meeting recordings, transcripts, and summaries never leave the device, there's no third-party processor handling them — supporting data-residency and GDPR obligations by design.
Government
Sensitive briefings, policy discussions, and internal reviews stay within your perimeter. No cloud dependencies, no third-party processors, no records leaving the device.
Defence
Operational planning and classified discussions run entirely on-device. Works offline, on air-gapped networks, with nothing transiting an external server.
Questions
Start keeping private notes.
Free. Open source. No account needed.
macOS 14.4+ (Apple Silicon) · Windows 10/11 (x64, alpha — unsigned) · ~4 GB for the default model