Buzz: Popular open-source desktop app that transcribes and translates audio offline on your own computer using OpenAI's Whisper. Microsoft Teams Copilot: Microsoft 365 Copilot inside Teams summarizes meetings, surfaces who said what, captures action items, and answers questions about the discussion during and after calls. The right pick comes down to team size, budget, and the workflows you want to automate.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Buzz when transcribing recorded meetings, interviews, podcasts, or lectures offline matters most, and Microsoft Teams Copilot when catching up on a teams meeting you joined late or missed matters most. Run both through a week of actual calls to see which suits your workflow.
Popular open-source desktop app that transcribes and translates audio offline on your own computer using OpenAI's Whisper.
Microsoft 365 Copilot inside Teams summarizes meetings, surfaces who said what, captures action items, and answers questions about the discussion during and after calls.
Buzz is a widely used open-source desktop application that transcribes and translates audio offline on the user's personal computer, powered by OpenAI's Whisper. It is MIT-licensed and actively maintained, with v1.4.4 released in March 2026, and it has grown a large community with roughly 19.7k GitHub stars. Buzz runs on macOS, Windows, and Linux, with installation options including Flatpak, Snap, and PyPI. It supports both importing existing audio and video files and real-time transcription from microphone input, and it can export results in formats such as TXT, SRT, and VTT for subtitling and documentation. The app includes an advanced transcript viewer with search and playback controls, a watch folder for automatically transcribing new files, and a command-line interface for automation. It offers GPU acceleration through CUDA for Nvidia cards, Apple Silicon support, and Vulkan for many other GPUs, which makes faster transcription practical even on laptops. Buzz also provides speaker identification and speech separation for noisy audio, plus a plugin system that adds capabilities like AI-generated summaries. Because all processing happens locally, recordings and transcripts remain on the user's machine rather than being uploaded to a cloud service. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Copilot in Microsoft Teams is the AI meeting assistant built into Microsoft 365 Copilot. During or after a Teams meeting it summarizes key discussion points (including who spoke and what they said), suggests action items, and answers questions by reasoning over the conversation and meeting chat. It works in real time via the Copilot button and is also available afterward through the meeting chat and Recap tab. Transcription does not have to be running just to turn Copilot on during a meeting, but live transcription must be enabled to prompt Copilot about what was said and to access its conversation history after the meeting ends; recording itself is not required. Longer responses can be opened in Word, and table-style output in Excel. Copilot is sold as a paid add-on that requires a qualifying Microsoft 365 or Office 365 subscription, and it extends beyond Teams across Word, Excel, Outlook, and other Microsoft 365 apps. A no-cost Microsoft 365 Copilot Chat tier is included for eligible subscribers but excludes the full work-grounded Teams meeting Copilot experience.
Best suited for
Buzz is a free tier with paid upgrades (freemium); Microsoft Teams Copilot is from $30/mo (paid). Always confirm current pricing on each vendor's site before buying.
| Feature | Buzz | Microsoft Teams Copilot |
|---|---|---|
| Core capability | Offline transcription and translation using OpenAI's Whisper | Meeting summaries |
| Standout feature | Real-time transcription from microphone input | Action item detection |
| Team usage | Speaker identification and speech separation for noisy audio | Speaker-attributed recap |
| Integrations | Exports to TXT, SRT, and VTT | Real-time meeting Q&A |
| Languages & capture | Watch folder for automatic transcription and a command-line interface | Export to Word and Excel |
| Best-fit workflow | GPU acceleration via CUDA, Apple Silicon, and Vulkan | Meeting summaries |
Buzz
Choose Buzz if you need transcribing recorded meetings, interviews, podcasts, or lectures offline — strengths include fully offline so audio and transcripts stay on the user's computer.
Microsoft Teams Copilot
Choose Microsoft Teams Copilot if you need generating post-meeting recaps and action items for teams calls — strengths include deeply integrated into teams and the wider microsoft 365 suite (word, excel, outlook), so no third-party meeting bot is needed.
Buzz
Microsoft Teams Copilot
It depends on your workflow. Buzz is strong for transcribing recorded meetings, interviews, podcasts, or lectures offline, while Microsoft Teams Copilot is strong for generating post-meeting recaps and action items for teams calls. Both transcribe and summarize meetings.
Buzz is a free tier with paid upgrades and Microsoft Teams Copilot is from $30/mo. Check each vendor's pricing page for the latest plans and free-tier limits.
You can — some teams pair them when each covers a different part of the meeting workflow.
More head-to-head comparisons involving Buzz and Microsoft Teams Copilot.
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