Fathom AI Review 2026: vs Otter.ai & Fireflies Which Wins?

Verdict: Fathom is the best free AI notetaker for individuals on Zoom. Fireflies wins for sales teams that need CRM sync. Otter leads on real-time transcription and searchable archives. There is no one-size-fits-all winner your meeting type, budget, and post-call workflow determine the right pick.

What Each Tool Actually Is

Fathom is a meeting-centric AI notetaker that launched as a browser extension for Zoom and has since expanded to Google Meet and Microsoft Teams. It prioritizes speed (30-second post-call summaries) and sales workflows. In April 2026, Fathom shipped a bot-free desktop capture mode, letting users record without a visible participant joining the call. As of May 2026, Fathom holds a 5.0/5 rating on G2 from over 6,800 reviews, making it the highest-rated tool in the category.

Otter.ai is the original AI meeting transcription tool. It provides real-time transcription with live captions, searchable meeting archives, and OtterPilot a bot that auto-joins calendar meetings. Otter supports Zoom, Google Meet, Microsoft Teams, and web audio. It holds a 4.4/5 on G2 from 485+ reviews. In early 2026, Otter launched an enterprise conversational knowledge engine with MCP (Model Context Protocol) client support, pulling live data from Gmail and other tools during meetings.

Fireflies.ai is an integration-heavy AI meeting assistant purpose-built for teams. It auto-joins meetings across any video platform, captures full transcripts with speaker labels, and syncs structured summaries to Salesforce, HubSpot, and Pipedrive. Fireflies holds a 4.7/5 on G2 from 746 reviews. It supports 60+ languages and includes conversation analytics (sentiment analysis, speaker talk-time tracking, topic detection) plus AI voice agents called Fred that can run automated calls.

Comparison Table: Fathom vs Otter vs Fireflies (May 2026)

Category	Fathom	Otter.ai	Fireflies.ai
Best For	Free individual use on Zoom	Real-time transcription + searchable archives	Sales teams + CRM automation
G2 Rating	5.0/5 (6,800+ reviews)	4.4/5 (485+ reviews)	4.7/5 (746 reviews)
Transcription Accuracy	90–95% (up to 93.2% in benchmarks)	85–95%	90–95% (up to 96% in clean audio)
Free Tier	Unlimited recording + transcription; 5 advanced AI summaries/month	300 min/month; 30 min/conversation limit	800 min storage; limited AI credits
Entry Paid Plan	$16/mo (annual) or $20/mo (monthly) Premium	$8.33/mo (annual) or $16.99/mo (monthly) Pro	$10/mo (annual) or $18/mo (monthly) Pro
Team/Business Plan	Team $18/user/mo; Business $25/user/mo	Business $20/user/mo (annual) or $30/user/mo (monthly)	Business $19/user/mo (annual) or $29/user/mo (monthly)
Platform Support	Zoom, Google Meet, Microsoft Teams	Zoom, Google Meet, Microsoft Teams, web audio	Any conferencing platform (Zoom, Meet, Teams, Webex, etc.)
Bot Joins Meeting	Yes (bot-free mode in beta, April 2026)	Yes (OtterPilot)	Yes (Fred)
CRM Integrations	Salesforce, HubSpot (native)	Salesforce, HubSpot (via connectors)	Salesforce, HubSpot, Pipedrive, 100+ integrations
Languages	28–38 languages	~4 languages	60–100+ languages
Key Feature	30-second post-call summaries; AI Scorecards; bot-free option	Real-time live captions; cross-meeting search	Conversation intelligence; sentiment analysis; voice agents
Security	SOC 2 Type II, GDPR, HIPAA	SOC 2, GDPR	SOC 2, GDPR
Mobile App	iOS for in-person recording (in development)	Yes	Yes
Summary Templates	15+ (SPICED, sales, standup)	Basic	Custom topic trackers

The 5 Things That Actually Matter in 2026

1. Free Tier Generosity Determines Adoption

Fathom’s free tier is the most generous in the category: unlimited recordings, unlimited transcription storage, and basic AI summaries with no time limit. The catch? Advanced AI features (action items, follow-up emails, custom summaries, “Ask Fathom” conversational query) are capped at 5 calls per month after an initial trial period.

Otter’s free tier caps at 300 minutes per month with a 30-minute per-conversation limit. That is roughly six 50-minute meetings per month before you hit the wall. Fireflies gives 800 minutes of storage on the free plan but restricts AI summaries and requires AI credits for advanced features.

For a solo freelancer attending 20 meetings a month, Fathom’s free tier covers the full workload. For a sales team of 10 doing 40 calls each, all three will require paid plans.

2. Transcription Accuracy Is Commoditized For English

In clean audio with native English speakers, all three tools deliver 90–95% accuracy. The differences emerge in degraded conditions:

Technical jargon: Fathom performs slightly better for SaaS and software terminology. Fireflies handles manufacturing and industrial terms marginally better. Otter is the most balanced across industries.
Heavy accents: Otter handles diverse accents most consistently. Fathom and Fireflies both degrade noticeably for non-native speakers with strong accents, with accuracy dropping to 60–70%.
Multi-speaker overlap: Otter benefits from per-speaker audio isolation on Zoom. Fathom and Fireflies struggle equally when three or more people talk over each other.

A 75-call benchmark test by Prospeo found Fathom at 93.2% accuracy versus competitors at 89.7%. Another independent test placed Otter at 93–95% in optimal conditions and Fireflies at 90–96% across clean recordings. The delta is statistical noise for most users. If your meetings involve non-English languages, however, Fireflies supports 60+ languages, Fathom covers 28–38, and Otter handles approximately 4.

3. Bot Visibility Is the Deciding Factor for Client-Facing Calls

“A faceless ‘AI Notetaker’ in your participant list makes everyone more formal, more guarded, less authentic. The best insights come from relaxed conversations.” Shadow.do, Best AI Meeting Note Takers That Don’t Join as a Bot (2026)

All three tools traditionally join meetings as visible bots (labeled “Fathom Notetaker,” “Otter.ai,” or “Fireflies.ai Notetaker”). This matters for:

Client sales calls where prospects get uncomfortable
Legal, HR, and financial discussions with confidentiality requirements
Investor and board meetings where recording optics matter
Enterprise clients who block bot participants at the admin level

Fathom addressed this in April 2026 with bot-free desktop capture. Otter and Fireflies still require a visible bot. Granola (Mac-only) and Convo are the other major bot-free alternatives, capturing system audio locally without joining the participant list.

4. Post-Meeting Workflow Integration Separates Winners from Noise

A transcript that lives in a separate app nobody checks is worse than no transcript at all. The real productivity gain comes from what happens after the call:

Fathom auto-generates follow-up emails with meeting summaries and pushes action items to HubSpot and Salesforce natively. AI Scorecards let sales managers grade calls against MEDDIC and SPICED frameworks. Summary templates (15+) are configurable per meeting type.
Fireflies pushes structured summaries, action items, and conversation metrics directly to CRM records. Topic trackers identify recurring themes across meetings. Voice agents (Fred) can run automated discovery calls. Cross-meeting search lets you ask “what did every prospect say about pricing last quarter?”
Otter provides the best searchable archive across all past meetings. The new MCP client pulls live context from Gmail during calls. Slack integration pushes summaries to channels automatically. Editing transcripts is fast and keyboard-friendly corrections feed back into the model.

5. AI Summaries Vary Wildly in Quality and Structure

Fathom produces the most structured summaries with clear sections for decisions, topics, and action items. The format is designed for immediate distribution copy the summary, paste it into an email or Slack, and send. Summary templates let you customize output for sales demos, discovery calls, internal standups, and one-on-ones.

Fireflies generates comprehensive summaries but leans toward verbosity. The AI captures everything, which means you spend more time filtering. Topic-specific extraction (pricing discussions, competitor mentions, objections) is Fireflies’ edge useful for sales managers reviewing dozens of calls.

Otter’s summaries are hit-or-miss. Users report summaries that emphasize minor details while missing key decisions. The real-time transcript during meetings is Otter’s strength, not the post-call summary.

Who Should Choose What

Choose Fathom If:

You are an individual contributor, freelancer, or consultant on a budget
Zoom is your primary meeting platform
Follow-up speed matters more than team collaboration features
You want structured sales summaries (MEDDIC, SPICED, BANT templates available)
You need bot-free capture for sensitive client calls
You value a clean, fast interface over feature depth

Choose Otter If:

Real-time live captions during meetings are non-negotiable
You need a searchable archive spanning hundreds of past meetings
Your organization already uses Zoom and wants the most mature transcription product
You are a journalist, researcher, or student who records interviews and lectures
Enterprise SSO, SCIM, and audit logging are hard requirements

Choose Fireflies If:

You run a sales or customer success team that lives in Salesforce or HubSpot
Automatic CRM logging saves your team 10–15 minutes of manual data entry per call
You need conversation intelligence sentiment analysis, talk-time ratios, objection tracking
Your team operates across multiple conferencing platforms (Zoom, Meet, Teams, Webex)
Multilingual support (60+ languages) is a hard requirement
You want AI voice agents to run automated discovery or follow-up calls

When Not to Use Any AI Notetaker

Avoid automatic recording for:

Legal discussions, HR matters, and performance reviews
Acquisition, investor, or board conversations with confidentiality requirements
Medical or financial consultations subject to regulatory consent rules
Client meetings where written NDAs or consent forms have not been signed
Sensitive customer escalations where trust is more important than documentation

Always confirm recording consent requirements in your jurisdiction. In the US, some states require all-party consent. The EU’s GDPR requires informing participants about recording and data processing. Most AI notetakers join as visible bots, providing implicit notice, but explicit verbal confirmation at the start of every meeting remains best practice.

How to Test These Tools Yourself

Do not choose from screenshots. Run each tool through the same three meetings:

A normal internal team meeting
A client-facing or sales call
A technical or detailed planning discussion

After each meeting, compare:

Transcript accuracy (especially speaker labels)
Summary quality can you forward it without editing?
Action item reliability did it catch every commitment?
Time required to clean up the output before sharing
Whether participants commented on the bot’s presence

The tool that produces usable notes with the least cleanup is your answer. A free tool requiring 20 minutes of editing after every meeting costs more in time than a paid tool that outputs ready-to-send summaries.

FAQ

Is Fathom really free forever?

Fathom’s free tier provides unlimited recording, transcription, and basic AI summaries with no time limit and no credit card required. Advanced AI features (action items, follow-up emails, Ask Fathom conversational query, custom summary templates) are capped at 5 per month. The Premium plan at $16–20/month removes all caps.

Can I switch between platforms later?

All three platforms support data export. Transcripts transfer between tools, though the process requires manual effort. Testing with free tiers before committing reduces switching costs.

Do these tools record video?

Fathom captures video (with the visible bot) or audio-only (bot-free mode). Otter and Fireflies are audio-only by default. Fathom is the only one of the three that records both video and audio.

Which handles sensitive meetings best?

Fathom offers SOC 2 Type II, HIPAA, and GDPR compliance with published policies stating they do not train AI on customer meeting data. Otter has SOC 2, GDPR compliance, and UpGuard rated it 822/950 with an A security rating. Fireflies has SOC 2 and GDPR. All three support SSO and admin controls on enterprise plans.

What about non-English languages?

Fireflies supports 60–100+ languages, making it the strongest option for multilingual teams. Fathom covers 28–38 languages with accuracy that drops on accents. Otter supports approximately 4 languages and works best in English.

Why does the bot joining my meeting matter?

Visible bots change meeting dynamics. Participants become more guarded. Some enterprise clients block bot participants entirely. If client-facing calls make up most of your meetings, Fathom’s bot-free mode (or a native bot-free tool like Granola) is worth the tradeoff in features.

Which tool has the best action item extraction?

Fathom generates the most reliable action items for sales and customer success calls. The extraction logic is trained on these conversation types. Fireflies produces solid extraction with more false positives. Otter’s extraction works but generates longer lists requiring heavier editing.

Fathom AI Note Taker Review: Does It Beat Otter and Fireflies?