Both of these tools do the same basic job: a bot joins your Zoom, Google Meet, or Teams call, transcribes what everyone says, and hands you a searchable summary afterward instead of a page of half-typed notes. The difference between them shows up once you look past the transcript and into what happens with that data afterward, and that's really the whole decision.
Otter.ai: the cleaner transcript, built for individuals first
Otter's free tier gives 300 minutes of transcription a month with a 30-minute cap per conversation, which covers most people's actual meeting load without ever pulling out a card. Pro runs $17/user/month for 1,200 minutes and a 90-minute per-call limit, and Business is $30/user/month with 6,000 minutes plus admin controls like SSO and usage analytics.
What Otter does well is the transcript itself. Speaker identification is reliable once a few sessions have trained it on someone's voice, and the editing interface is genuinely clean, easy to scan, easy to correct a misheard word, easy to jump to a specific moment in the recording. Accuracy on clear English audio lands around 85 to 90 percent, which is good enough that most people stop noticing the tool is even there. It starts to slip with heavy accents, background noise, or dense technical jargon, the same weak spot every transcription tool has to some degree.
The recurring complaint on Reddit isn't about accuracy, it's about the bot itself. OtterPilot joins as a visible participant in the call, and in client-facing or executive meetings that visibility reads as awkward at best and unprofessional at worst. The other real limitation: no CRM integration. If a sales team's whole reason for wanting meeting transcription is getting call notes into Salesforce or HubSpot automatically, Otter simply doesn't do that job.
Fireflies.ai: built for teams that live in a CRM
Fireflies flips the free tier around: unlimited transcription with an 800-minute storage cap, so the meter runs on storage rather than monthly minutes. Pro is $19/user/month with 8,000 minutes of storage and AI-powered cross-meeting search, and Business jumps to $39/user/month for unlimited storage plus conversation intelligence and SSO.
The reason sales and customer success teams reach for Fireflies specifically is CRM sync. Meeting notes, action items, and call data push directly into Salesforce, HubSpot, Pipedrive, and Zoho without anyone manually copying anything over after a call ends. AI summaries pull out objections, key questions, and topic breakdowns automatically, and because Fireflies covers more platforms out of the box, Zoom, Meet, Teams, and Webex, it fits mixed environments where not everyone is on the same video tool.
Where Fireflies falls short of Otter is the editing experience itself. The transcript interface is less polished, and several reviewers note transcription accuracy trailing Otter's in side-by-side use, especially on calls with multiple people talking over each other. Sentiment analysis is described as approximate rather than precise, useful as a rough signal but not something to build a coaching program entirely around. The 800-minute free storage cap also fills fast for any team recording several calls a week, faster than Otter's free tier resets.
Where the real decision sits: CRM sync or transcript quality
If a team's core use case is sales calls that need to land in a CRM automatically, that one feature difference settles the comparison before price ever enters the conversation. Fireflies pays for itself the moment it saves a rep from manually logging call notes after every conversation, and the searchable archive across months of past calls turns out to be genuinely useful when prepping for a renewal call and needing to remember what was promised six months ago.
If the use case is closer to internal meetings, one-on-ones, or note-taking for personal reference, Otter's cleaner transcript and less intrusive bot presence tend to win out. Nobody on an internal standup cares whether the notes sync to a CRM that doesn't apply to them, but everyone notices when the bot joining the call feels like an extra guest nobody invited.
Real cost at team scale
A 15-person sales team on Fireflies Pro: $19 × 15 = $285/month, or $3,420/year, for CRM-synced call intelligence across the whole team.
The same 15-person team on Otter Pro: $17 × 15 = $255/month, or $3,060/year, but without CRM sync, meaning someone still has to manually log call summaries into whatever system tracks the pipeline, which for a busy sales team quietly erodes most of the time savings the tool was bought to create.
A 5-person internal team using either tool mostly for meeting notes: Otter Pro at $17 × 5 = $85/month is the cheaper and cleaner option, since nobody in that scenario is paying for CRM integration they'll never use.
What actually goes wrong day to day
The bot-visibility complaint isn't hypothetical. Both tools' own user feedback flags real incidents of the recording bot joining a call that wasn't supposed to be recorded, usually because a calendar integration auto-joins anything that looks like a meeting, including a client call someone forgot to mark private. That's a permissions and calendar-hygiene problem more than a product flaw, but it means whoever rolls either tool out to a team needs to actually configure which calendars and meeting types trigger auto-join before the first embarrassing incident happens, not after.
Otter's 30-minute per-conversation cap on the free tier is a smaller but more common annoyance: a standup that runs long, a client call that goes fifty minutes instead of thirty, and the transcript just stops mid-sentence. Fireflies avoids that specific problem since its free tier has no per-call time limit, only a total storage ceiling, but that ceiling of 800 minutes disappears fast for a team doing back-to-back client calls most days of the week, often within the first two or three weeks of a month.
Where Fathom fits into this comparison
Both companies' own product teams bring up Fathom unprompted when comparing themselves to each other, which says something about where the free-tier bar has moved. Fathom is free for individual use with no storage cap, and for someone who just wants their own meeting notes without a team plan or CRM sync, it's genuinely hard to justify paying for Otter or Fireflies over it. Where Fathom falls short is exactly where Fireflies earns its price: no CRM integration, no cross-meeting search across a full team's call history, no admin controls for managing licenses across a sales org. The honest framing is that Fathom covers the individual use case well enough that Otter and Fireflies are really competing for the team and CRM-integrated use case, not for solo note-taking.
Where both fall short
Neither tool handles heavily accented English or dense technical jargon well, and anyone expecting near-perfect transcripts on a call full of acronyms and domain-specific terms will end up doing manual cleanup regardless of which one gets picked. Both tools also join calls as a visible bot by default, so any team sensitive to that in front of clients needs to check meeting permissions and disclosure settings before rolling either one out broadly. And both store meeting audio in the cloud (Fireflies and Otter each run on US-based AWS infrastructure with SOC 2 Type 2 certification), which matters for any team in a regulated industry that needs to think through data residency and retention before recording client calls by default.
Which one to actually pick
Pick Fireflies if the team is sales-heavy and CRM sync is the actual point, not a nice-to-have. The $19-39/user/month range earns its keep the moment it removes manual call logging from a rep's day.
Pick Otter if the priority is clean, accurate transcripts and lighter meeting footprint, and CRM integration isn't part of the workflow. It's also the cheaper option for internal-only teams that don't need Fireflies' cross-platform reach.
For anyone still unsure, the free tiers on both are generous enough to run a real two-week trial with an actual team before committing to a paid seat. Given how much the right answer depends on whether a CRM is even in the picture, that trial is worth running before assuming either tool is the obvious choice.