Why teams are switching to AI notetakers
The average knowledge worker sits through five or six meetings a day. By the time a call ends, the clearest recollections belong to whoever typed fastest, and action items scatter into inboxes or vanish entirely. AI meeting assistants address this by joining calls, transcribing speech in real time, and delivering structured summaries — complete with decisions, follow-ups, and often CRM entries — before the next calendar block begins.
Otter.ai, Fireflies.ai, and Fathom are the three tools most commonly shortlisted when teams make this switch. They share a similar premise but optimise for different things: Otter.ai for transcription breadth, Fireflies.ai for sales-team workflows, Fathom for summary quality and a generous free tier. Understanding where each one excels — and where it falls short — saves you a month of trial-and-error.
Otter.ai: the long-running benchmark
Otter.ai has been transcribing meetings since 2016, and that head start shows. Its live transcription is the smoothest of the three — text appears on screen as people speak, colour-coded by speaker, with a confidence that comes from years of training data. It integrates natively with Zoom, Google Meet, and Microsoft Teams, and its mobile app handles in-person recordings well enough to double as a voice memo tool.
The feature that earns the most loyalty is post-call AI chat. Once a transcript is saved, you can type questions directly into Otter — "What did Marcus say about the budget?" or "List every action item from the last 20 minutes" — and receive quoted, searchable answers. For teams that reference meeting content days later rather than hours, this is meaningfully more useful than a static summary.
The weaknesses are real, though. Otter's automated summaries tend toward the shallow: a bulleted list of topics mentioned rather than a coherent account of what was actually decided. Teams who want narrative-style notes often spend more time editing than they save on typing. The free tier caps recordings at 300 minutes per month and 30 minutes per conversation, which most active users will exhaust within a week. Paid plans start at $16.99 per user per month billed annually, rising to $30 for the Business tier with team analytics and extended limits. Start with Otter.ai's free plan.
Fireflies.ai: built for revenue teams
Fireflies.ai makes its priorities clear from the first onboarding screen: this tool is designed for sales, customer success, and recruitment teams who need call data to flow into a CRM without manual entry. Its native integration library runs to over 40 tools — Salesforce, HubSpot, Pipedrive, Zoho CRM, Slack, Notion, Asana, and more — all without requiring a Zapier layer. After a discovery call, Fireflies can log the transcript, AI summary, and flagged action items directly to the relevant deal record.
The conversation intelligence layer is the most developed of the three. Beyond simple transcription, Fireflies tracks talk-time ratios by speaker, detects when competitors or pricing is mentioned, and surfaces objections as tagged moments in the recording. A sales manager reviewing ten calls a week gets a bird's-eye view of patterns across the team rather than ten separate documents to read.
Summary quality is better structured than Otter's — you typically receive separate sections for overview, action items, and key topics — but it remains template-driven. The AI hasn't read your deal history or understood the context of the conversation; it has matched patterns and filled slots. That's useful but not the same as genuinely intelligent summarisation.
Transcription accuracy sits in the 85–95% range under clear audio conditions, on par with Otter.ai. Both tools can struggle with strong accents or dense technical vocabulary. The free plan offers unlimited recording but gates AI summaries and CRM integrations behind paid tiers starting at $18 per seat per month — which means the features that differentiate Fireflies from a plain transcription tool require a subscription from day one. Try Fireflies.ai free.
Fathom: the free tier that changes the calculation
Fathom's opening proposition is unusual enough to warrant a double-take: unlimited recordings, unlimited transcripts, and unlimited AI summaries across Zoom, Google Meet, and Microsoft Teams — all free, with no monthly minute cap and no per-conversation limit. For an individual contributor or a small team that doesn't yet need CRM sync, the free tier alone makes Fathom worth trying before paying for anything else.
The summaries are where Fathom pulls ahead of the field. Rather than slotting content into a generic template, Fathom produces notes that read like something a sharp human assistant might write — capturing intent and context, not just cataloguing topics. Decisions feel like decisions in the summary, not buried bullets. Follow-ups read as commitments rather than vague to-dos. Teams that have switched from Otter.ai or Fireflies.ai consistently cite summary quality as the reason they stayed.
Fathom's architecture is also distinctive. It runs as a desktop application rather than deploying a bot into your meeting room. There is no "Fathom has joined the meeting" notification, no named participant your clients may question, and no audio streaming to a third-party server in real time — Fathom processes recordings locally before uploading. For organisations handling sensitive client conversations, that distinction matters.
The limitations surface when teams need deep integrations. On the free plan, sharing options are basic. Fathom's Team Edition (from around $19 per user per month) unlocks Salesforce, HubSpot, and Slack sync, but Fireflies.ai still holds the edge in raw integration breadth for complex revenue stacks. Start with Fathom's free plan.
Feature comparison
| Feature | Otter.ai | Fireflies.ai | Fathom |
|---|---|---|---|
| Free tier | 300 mins/month, 30 min/call | Unlimited recording; AI gated | Unlimited recordings & summaries |
| Paid plan entry price | $16.99/user/mo (annual) | $18/user/mo (annual) | ~$19/user/mo (Team Edition) |
| Zoom | Yes | Yes | Yes |
| Google Meet | Yes | Yes | Yes |
| Microsoft Teams | Yes (paid) | Yes (paid) | Yes (free tier) |
| Meeting bot visible | Yes | Yes | No — desktop app only |
| Live transcription | Yes — best in class | Yes | Post-call (short delay) |
| Summary quality | Good (bullet-list style) | Good (structured sections) | Excellent (narrative) |
| Post-call AI chat | Yes | Yes (paid) | Limited on free |
| CRM integrations | Salesforce (paid) | 40+ native (Salesforce, HubSpot, Pipedrive…) | Salesforce, HubSpot (paid) |
| Conversation intelligence | Basic | Advanced (talk ratios, keyword flags) | Moderate |
| Privacy model | Cloud-processed | Cloud-processed | Local processing, no real-time upload |
Prices correct as of August 2026. Always verify on vendor pricing pages before committing.
Which tool is right for your situation?
Choose Otter.ai if you value live transcription and searchability
Otter.ai is the best fit for teams where meetings are long, participants are many, and people need to search transcripts hours or days after the call rather than act on a summary immediately. The post-call AI chat is a genuine differentiator for distributed teams who missed parts of a recording or want to verify what was agreed before a follow-up email. It is also the most polished option if you frequently record in-person conversations rather than video calls.
Choose Fireflies.ai if your team lives inside a CRM
Fireflies.ai is the clear pick for sales, customer success, and recruitment functions. The native CRM integrations eliminate the most tedious post-call admin, and the conversation intelligence layer gives managers visibility into what is actually happening across a team's calls — not just a storage bucket of transcripts nobody reviews. If deal hygiene and pipeline data quality matter to you, Fireflies.ai earns its subscription cost faster than the alternatives.
Choose Fathom if summary quality and cost are the deciding factors
Fathom is the right starting point for most individuals, founders, and small teams. The free tier is genuinely unlimited, the summaries are the best of the three at capturing what was actually decided rather than what was mentioned, and the desktop-app architecture reduces friction in client-facing calls where a visible bot participant would raise questions. If you later need deep CRM integrations, the Team Edition is comparably priced to the competition.
The costs that don't appear on the pricing page
Every AI notetaker sits on top of a video conferencing subscription you are already paying for. Factor in the Zoom or Google Workspace licence cost alongside the per-seat price of whichever tool you choose, and the real per-user cost is higher than the headline figure. CRM licences add another layer if you are counting on integration to justify the spend.
Otter.ai's free tier sounds generous at 300 minutes per month but most teams will hit the ceiling by Wednesday of the first week. Fireflies.ai's free plan looks generous until you discover that AI summaries — the main reason to use the tool — require a subscription. Fathom's free tier is the rare exception that works as advertised; the trade-off is that meaningful team collaboration features require the paid upgrade.
Run whichever tool you are considering on two weeks of real meetings before committing to annual billing. The metric that matters is not transcription accuracy — all three are close enough — but whether your team actually reads and acts on the summaries, or archives them and carries on as before. A tool that produces notes nobody uses is an expensive subscription to a problem you still have.
Frequently asked questions
Is Otter.ai free to use?
Yes. The free plan includes 300 transcription minutes per month, live transcription on Zoom, Google Meet, and Microsoft Teams, and up to 30 minutes per conversation. Most active users will need a paid plan; the Pro tier starts at $16.99 per user per month billed annually and removes the monthly cap while adding longer individual recordings and advanced AI features.
Does Fathom work with Microsoft Teams?
Yes, and unusually it includes Teams support on the free tier. Otter.ai and Fireflies.ai both restrict Teams integration to paid plans. If your organisation runs on Teams and you want to trial an AI notetaker without a subscription commitment, Fathom is the obvious starting point.
How accurate is Fireflies.ai transcription?
In clear audio, Fireflies.ai typically achieves 85–95% accuracy — broadly on par with Otter.ai. Accuracy drops noticeably with overlapping speakers, strong accents, or domain-specific vocabulary. Fathom's post-call processing pipeline tends to produce marginally cleaner transcripts in direct comparisons, though it takes a few minutes longer to deliver results after a call ends.
Which tool is best for sales teams?
Fireflies.ai is the strongest choice. Its native integrations with Salesforce, HubSpot, and Pipedrive, combined with conversation intelligence features that flag pricing discussions, competitor mentions, and objections, make it the most purpose-built option for revenue teams. Fathom also offers Salesforce and HubSpot sync on paid plans, but Fireflies.ai's breadth of native connectors and the depth of its sales analytics remain ahead.
Can I use an AI notetaker without a bot joining my meeting?
Fathom is the only tool of the three that does not deploy a bot participant into the meeting room. It runs as a desktop overlay on your machine, so no named attendee appears in your participant list. Otter.ai and Fireflies.ai both join as visible bot participants, which some organisations restrict on compliance grounds or avoid in high-stakes client calls.
Are these tools GDPR-compliant?
All three publish GDPR documentation and support data deletion requests. Fathom goes further by explicitly stating it does not train its models on your meeting content and processes audio locally before uploading. For enterprise or regulated environments, request each vendor's Data Processing Agreement, verify whether EU data residency is available, and confirm that participant consent procedures match your organisation's policy before a broad rollout.
Bottom line
Fathom earns the default recommendation for most teams. The free tier is the most generous in the category, the summaries are the most useful out of the box, and the lack of a visible bot participant removes a common point of friction in client-facing work. If you run a revenue team that needs deep CRM integration and conversation analytics, Fireflies.ai is the clear pick instead. Otter.ai sits credibly in the middle — more polished than Fireflies.ai for live transcription, more feature-rich than Fathom on the free tier — but the definitive choice for neither use case specifically.
Start with whichever free tier matches your immediate need, run two weeks of real meetings, and judge the tool on whether your team reads and acts on the summaries. That single measure will tell you more than any benchmark comparison.