Buzz: Popular open-source desktop app that transcribes and translates audio offline on your own computer using OpenAI's Whisper. Nimitai: An AI conversation-intelligence copilot for B2B sales teams that researches prospects, briefs reps, and delivers real-time coaching during calls. We compare them on cost, capture approach, and day-to-day fit so you can choose faster.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Buzz when transcribing recorded meetings, interviews, podcasts, or lectures offline matters most, and Nimitai when preparing reps with research and briefings before customer meetings matters most. Test each on your own meetings; the right choice tends to become obvious quickly.
Popular open-source desktop app that transcribes and translates audio offline on your own computer using OpenAI's Whisper.
An AI conversation-intelligence copilot for B2B sales teams that researches prospects, briefs reps, and delivers real-time coaching during 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
Nimitai is an AI meeting-intelligence and conversation-analytics platform built specifically for B2B sales teams at startups and growth-stage companies. It is structured around specialized functions: a research step that pulls prospect intelligence before a call, a preparation step that generates pre-call briefings with talking points and deal context, and a live copilot that delivers real-time coaching during the meeting. Nimitai captures calls through a lightweight Chrome extension that works with Zoom, Google Meet, and Microsoft Teams without requiring a separate bot to join the call. During a live conversation it records and analyzes audio and engagement signals, surfaces coaching cues, flags unaddressed objections, detects shifts in buyer interest, and highlights deal-risk signals so reps can adjust in the moment. After the call it generates structured scorecards and call summaries and can sync them to CRMs such as Salesforce, HubSpot, and Pipedrive, reducing manual data entry. It is aimed at sales organizations that want both real-time selling assistance and post-call analytics in a single tool, positioned as an option for smaller revenue teams. The platform is operating and accepting B2B sales teams. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Buzz is a free tier with paid upgrades (freemium); Nimitai is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Buzz | Nimitai |
|---|---|---|
| Core capability | Offline transcription and translation using OpenAI's Whisper | Pre-call prospect research and preparation briefings |
| Standout feature | Real-time transcription from microphone input | Real-time coaching cues and objection alerts during live calls |
| Team usage | Speaker identification and speech separation for noisy audio | Bot-free capture via a Chrome extension for Zoom, Meet, and Teams |
| Integrations | Exports to TXT, SRT, and VTT | Buying-signal and deal-risk detection during conversations |
| Languages & capture | Watch folder for automatic transcription and a command-line interface | Structured post-call scorecards and summaries |
| Best-fit workflow | GPU acceleration via CUDA, Apple Silicon, and Vulkan | CRM sync to Salesforce, HubSpot, and Pipedrive |
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.
Nimitai
Choose Nimitai if you need coaching sales reps in real time during discovery and demo calls — strengths include combines pre-call prep, live coaching, and post-call analytics in one tool.
Buzz
Nimitai
It depends on your workflow. Buzz is strong for transcribing recorded meetings, interviews, podcasts, or lectures offline, while Nimitai is strong for coaching sales reps in real time during discovery and demo calls. Both transcribe and summarize meetings.
Buzz is a free tier with paid upgrades and Nimitai is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
Sure. Running both makes sense when their strengths don't overlap and the budget allows.
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