The AI meeting assistant market has matured faster than almost any AI category. Three years ago, the question was whether these tools worked well enough to use. Today the question is which one fits your specific workflow – because the tools have diverged meaningfully in what they prioritize.
Fathom, Fireflies.ai, and Otter.ai are the three most common names you encounter when evaluating this space. They overlap on the basics: all three record, transcribe, and summarize meetings, and all three support Zoom, Google Meet, and Microsoft Teams. But they make very different choices about what to put on the free plan, how to handle privacy, and where to push their paid tiers.
This comparison covers what each tool actually says about itself – transcription claims, free-tier limits, paid plan prices on both monthly and annual billing, platform integrations, AI summary depth by plan, and data training policies drawn from their published privacy pages. For the full ranked list of meeting assistants across eight tools, see our Best AI Meeting Assistants in 2026 roundup.
The Free Plan: Where Most Decisions Get Made
For individuals and small teams, the free tier is the real test. Getting someone to sign up for a free trial and then upgrading them is the entire product funnel for these tools – which means the free tiers are designed to demonstrate value, not to be permanently sustainable. Knowing exactly where each one walls off features tells you how much runway you have before you hit a paywall.
Fathom Free gives you unlimited recordings, unlimited transcription, and unlimited storage across all three supported platforms. There is no per-meeting length cap stated on the pricing page. The only meaningful limitation at the free tier is that AI action items, AI follow-up emails, and the “Ask Fathom” assistant require a paid plan – the free plan gets automated summaries plus advanced summaries for your first 5 calls each month, but not the deeper analysis features. (Source) Fathom also offers a bot-free recording option (currently in beta, Mac only) on the free plan.
Otter Basic gives you 300 transcription minutes per month with no rollover, a 30-minute cap per individual meeting, and history limited to your 25 most recent conversations. File imports are capped at 3 lifetime total (not per month – three imports ever). The basic AI Chat allows 20 queries per month with a limit of 3 per conversation. This free plan is adequate for occasional use, but the 30-minute meeting cap is a hard wall that anyone running standard hour-long meetings will hit immediately.
Fireflies Free offers “unlimited transcription” (with an asterisk indicating rate limits apply), but only 400 minutes of total storage shared across the whole team. AI summaries are listed as “limited” on the free plan, and AskFred, the AI assistant, is available but also marked limited. Recording length is capped at 2 hours per meeting.
The gap between Fathom and the other two on the free tier is not subtle. If you’re evaluating for personal use or a small team, Fathom gives you a complete workflow without a credit or minute clock running in the background.
Transcription Accuracy Claims
These tools’ accuracy claims vary in specificity.
Fireflies states on its homepage that it achieves 95% accuracy and describes itself as “the industry leader in transcription accuracy.” It supports transcription in 100+ languages, with auto-language detection available on all plans and Multi-language Mode (for multilingual meetings) available on Business and Enterprise plans.
Fathom’s homepage describes “shockingly accurate transcripts” and “consistent quality across every call” – qualitative language without a percentage claim. Fathom’s platform supports Zoom, Google Meet, and Microsoft Teams, but the pricing and features pages do not state the number of languages supported.
Otter’s pricing page lists transcription in English, Spanish, French, German, Japanese, and Chinese – six languages total. The homepage highlights speaker identification and real-time transcription as differentiators, but does not state an accuracy percentage.
The language coverage difference is material for international teams. Fireflies’ 100+ language claim puts it in a different category for multilingual organizations. Otter’s six-language list is limited enough that it will exclude a meaningful portion of non-English-speaking teams.
Paid Plan Pricing
Here is where each tool lands on both monthly and annual billing, as of September 2026:
Fireflies Paid Plans
| Plan | Annual (per seat/month) | Monthly (per seat/month) |
|---|---|---|
| Pro | $10 | $18 |
| Business | $19 | $29 |
| Enterprise | $39 (annual only) | — |
Pro adds video recording (720p), unlimited AI summaries, 8,000 minutes of storage per seat, and a 2-hour recording limit. Business raises the recording limit to 3 hours, keeps video capture at 720p, removes the storage cap, and adds conversation intelligence and team analytics for admins. (Source) AI credits increase from 20 (Pro) to 30 (Business) to 50 (Enterprise).
Otter Paid Plans
| Plan | Annual (per user/month) | Monthly (per user/month) |
|---|---|---|
| Pro | $8.33 | $16.99 |
| Business | $19.99 | $30 |
| Enterprise | Demo required | — |
Otter Pro raises the monthly transcription cap from 300 to 1,200 minutes, increases the per-meeting limit from 30 to 90 minutes, and enables Salesforce and HubSpot sync for one user. Business removes the monthly meeting transcription cap (imported file transcription is still capped at 6,000 minutes per user), raises the per-meeting limit to 4 hours, and allows 3 concurrent meetings. (Source) The student discount brings Otter Pro to $6.67 per month billed annually ($79.99/year) for .edu email addresses.
Fathom Paid Plans
| Plan | Annual (per user/month) | Monthly (per user/month) |
|---|---|---|
| Premium (individual) | $16 | $20 |
| Team (2-user min) | $15 | $19 |
| Business (2-user min) | $25 | $34 |
| Enterprise | $35 (annual only) | — |
Fathom Premium adds advanced summaries, AI action items, and a conversational meeting assistant over the free plan. Team adds global search across all your calls, team recording views, playlists, and collaboration features. Business adds CRM field sync (automated post-meeting CRM updates), Deal View, coaching metrics and AI scorecards. All paid plans carry a 90-day guarantee.
Pricing math worth noting: Otter Pro at $8.33/month annually is the cheapest paid entry point here. But it comes with a hard monthly minute cap (1,200 minutes) that a team holding four 60-minute meetings per week will use up in roughly five weeks.
Platform Integrations
All three tools support the three dominant video conferencing platforms: Zoom, Google Meet, and Microsoft Teams. For most teams that is the end of the question.
Where they differ is in how that support manifests:
Otter offers native live captions inside Zoom and Google Meet – not just a bot that joins to record, but integrated real-time captioning visible within the meeting interface. For accessibility use cases or teams that want real-time text during the meeting itself (not just after), this is a meaningful differentiator. Otter also supports automated sync of cloud recordings from Zoom and audio/video files from Dropbox.
Fireflies connects to 100+ apps including Salesforce, HubSpot, Slack, Notion, and a range of ATS systems (Greenhouse, Lever). It also integrates with Webex, GoToMeeting, Dialpad, and several VoIP dialers – useful for sales teams running calls through Aircall or RingCentral rather than standard video conferencing.
Fathom takes the opposite approach to breadth: it focuses depth on the platforms it supports (Zoom, Google Meet, Teams) and offers a growing integration list (Salesforce, HubSpot, Slack, Zapier, Asana, Notion, Claude, ChatGPT – 20+ total). CRM field sync – the feature that actually writes back to CRM records automatically after a meeting – requires a Business plan. CRM access on Free, Premium, and Team plans is limited to a maximum of three users per domain. Fathom’s Claude and ChatGPT integrations (launched as new features) let you pull meeting context directly into your AI chat workflows.
AI Summary Features by Tier
The summaries each tool generates – and when they become truly useful – differ significantly by plan tier.
Fathom’s free plan provides automated basic summaries. Advanced summaries (with more customization and detail) are capped at your first 5 calls each month on the free plan and are unlimited from Premium up. (Source) AI action items require Premium. AI follow-up emails require Premium. (Source) Account-wide conversational search (“Ask Fathom” across all your calls, not just a single call) is a beta feature that on the Free plan can search only your last 2 weeks of calls, with unlimited access to your meeting history on Premium and limited lookback for “Team Calls” on Team. (Source)
Fireflies’ free plan gives you limited AI summaries. Unlimited summaries start at Pro ($10/month annually). Conversation intelligence – Fireflies’ analytics layer that tracks sentiment, question patterns, and speaker talk-time across meetings – is Business-only. The AskFred assistant (for querying across your meeting library) is available on all plans but limited on Free.
Otter’s free plan gives you automated summaries with action items on all plans. The AI Chat feature, which lets you ask questions across your meetings, caps at 20 queries per month on Basic, 50 on Pro, and 200 on Business. Custom AI meeting templates (allowing you to configure how summaries are structured for different meeting types) scale from 5 per user on Basic to 15 on Pro to 30 on Business.
For teams that need to surface information from months of meeting history – not just summarize today’s calls – Fireflies’ global search and Fathom’s account-wide Ask Fathom (unlimited meeting history from Premium) are the relevant features. Otter’s AI Chat is useful for current meetings but less powerful for longitudinal search.
Data Privacy and Training Policies
This is the section most comparisons skip. It should not be skipped.
Fireflies is the most direct. Their security page states: “0-day retention policy ensures that your meeting data is never used for AI model training.” They also state: “You own your data. We don’t train on it by default unlike other AI companies.” Enterprise customers can add custom data retention policies and private storage.
Fathom’s privacy policy states that the company “may use and create de-identified data generated from Meeting Content Information to improve our Service by training, improving, and customizing our in-house artificial intelligence models.” Crucially, Fathom also states that users can opt out of this use “in your account settings” and that Fathom “does not authorize third parties (e.g., OpenAI, Anthropic, Google, etc) to use your personal information or Meeting Content Information to train their artificial intelligence models.” HIPAA compliance is available via signed BAA at the Enterprise tier.
Otter’s privacy policy states that the company improves the service “including training our proprietary AI technology on de-identified audio recordings and on transcriptions (which may contain Personal Information).” The policy does not describe an opt-out mechanism for this training use. HIPAA compliance is an add-on for Enterprise customers.
For teams handling confidential conversations – client calls, board discussions, medical contexts – the training policy is not a trivial consideration. Fireflies’ public no-training stance is the cleanest. Fathom offers an opt-out. Otter’s policy, as published, does not.
All three tools encrypt data at rest and in transit. Fireflies specifies 256-bit AES at rest and TLS in transit. Fireflies, Fathom, and Otter are all SOC 2 Type II certified or audited.
Best Fit: Who Each Tool Is For
Choose Fathom if: You want the most generous free plan available and you work primarily on Zoom, Google Meet, or Microsoft Teams. The free tier genuinely has no meaningful limits on recordings – you will not hit a wall mid-month. The paid Team and Business plans are reasonably priced for teams that want CRM sync and meeting analytics. The 90-day guarantee on paid plans removes the risk from upgrading.
Fathom is the right default recommendation for individual professionals and small teams that do not have specialized needs. The question with Fathom is not whether it works – it is whether your specific needs require features that Fathom puts behind the Team or Business paywall.
Choose Fireflies if: Your team spans multiple languages, you need to search across a large archive of past meetings, or you use a broader conferencing stack (Webex, GoToMeeting, VoIP dialers). Fireflies’ 100+ language support is a capability the other two do not match at this price. The Business tier’s conversation intelligence layer also goes further than comparable tiers at Otter or Fathom for organizations running structured sales or coaching workflows. Fireflies’ explicit data-not-for-training policy is the clearest of the three.
Choose Otter if: Live transcription inside the meeting – not just after – is essential. Otter’s integrated live captions for Zoom and Google Meet are a real differentiator for teams that use transcription during the call itself, not just as a post-meeting artifact. Otter is also the right fit if you want granular control over per-user minute budgets, the lowest entry price for a paid tier ($8.33/month annually). The Business plan’s 3-concurrent-meetings support is useful for large teams running simultaneous calls.
The Verdict
Fathom wins for most people. The free tier is the clearest decision in this comparison: unlimited recordings, unlimited transcription, unlimited storage, and three major platforms supported. Most individuals and small teams will not find a reason to look elsewhere before trying Fathom first.
Fireflies wins on language breadth and search depth. If your meetings cross language lines regularly, or if you run a team where being able to query months of call history is part of the workflow, Fireflies’ 100+ language support and global search architecture are the differentiators worth paying for.
Otter wins when the meeting itself is the product. Live captions, real-time transcription, and per-user minute controls make Otter the better choice for teams where what happens during the call – not just the summary afterward – drives the use case. It is also the right tool for any individual who wants the cheapest monthly entry to a paid tier.
None of these is a bad tool. The choice depends on context – what you record, how many languages your team uses, how deeply you need to search the archive, and how seriously you weigh the data training question. That context is what actually determines the right fit.
For a broader look at meeting assistants across eight tools including tl;dv, MeetGeek, and Avoma, see Best AI Meeting Assistants in 2026. If you are evaluating how Zoom and Google Meet stack up as the underlying platforms, our Zoom vs Google Meet 2026 comparison covers the conferencing layer itself.