Fireflies.ai and Otter.ai are the two most popular AI meeting assistants — but they're built for different use cases. After 30 days of testing both across 50+ meetings (sales calls, team standups, client presentations), here's the definitive comparison.
| Feature | 🔥 Fireflies.ai | 🧠 Otter.ai | Winner |
|---|---|---|---|
| Free tier transcription | Unlimited | 300 min/month | Fireflies 🔥 |
| Starting paid price | $10/seat/mo | $16.99/user/mo | Fireflies 🔥 |
| Real-time live transcription | After-meeting | During meeting | Otter 🧠 |
| Transcription accuracy | 95%+ | 93%+ | Fireflies 🔥 |
| Languages supported | 60+ | English only | Fireflies 🔥 |
| Native integrations | 30+ (CRM, PM, Slack) | 4 (Calendar, Zoom, Meet, Teams) | Fireflies 🔥 |
| CRM integration | HubSpot, Salesforce, Pipedrive, Zoho | ❌ None | Fireflies 🔥 |
| Cross-meeting search | All meetings, natural language | Within one meeting only | Fireflies 🔥 |
| Video recording | ✅ All paid plans | ❌ None | Fireflies 🔥 |
| AI summaries | Unlimited (paid plans) | Paid plans only | Fireflies 🔥 |
| Sentiment analysis | ✅ Yes | ❌ No | Fireflies 🔥 |
| In-meeting collaboration | Comments after meeting | ✅ Real-time highlights + comments | Otter 🧠 |
| Mobile app | ✅ Available | ✅ Excellent | Otter 🧠 |
| Topic tracking | ✅ Auto-tagging | ❌ No | Fireflies 🔥 |
Both tools are excellent, but Fireflies edges ahead at 95%+ vs Otter's ~93%. Fireflies handles accents, crosstalk, and technical jargon better. It also supports 60+ languages vs Otter's English-only. If you have international teams or non-native English speakers, Fireflies is the clear choice.
For a 5-person team doing 10 one-hour meetings per week:
Otter's minute-based billing makes it 3-5x more expensive for active teams.
Fireflies wins decisively here. After a sales call, Fireflies auto-logs the call in HubSpot with notes populated. After a project meeting, tasks appear in Asana automatically. After a standup, the summary posts to Slack. Otter doesn't do any of this — you're manually copy-pasting summaries into your tools.
Otter wins for live collaboration. During a meeting, team members can highlight, comment, and tag each other in the live transcript. It turns meetings into working documents. Fireflies is better after the meeting — searchable archive, topic tracking, and automated distribution of summaries.
Winner: Fireflies.ai 🔥
Auto CRM logging, conversation intelligence, deal tracking, call recording. Otter can't touch this.
Winner: Otter.ai 🧠
Real-time transcription means you can read along during lectures. Mobile app for in-person recording. Lower commitment (you might only have a few hours/week).
Winner: Fireflies.ai 🔥
Unlimited transcription, lower price, Slack + CRM integrations. Otter's minute caps will hurt as you grow.
Winner: Otter.ai 🧠
Live transcription during interviews is invaluable. Mobile recording + instant text. Fireflies is more post-meeting focused.
Winner: Fireflies.ai 🔥
Multi-language support (60+ languages), async summaries to Slack, searchable archive. Otter is English-only.
Winner: Otter.ai 🧠
If you run workshops, brainstorms, or design sessions where live collaboration matters, Otter's real-time commenting is unmatched.
For 80% of teams, Fireflies.ai is the better choice. It's cheaper, has unlimited transcription, integrates with your existing tools (CRM, Slack, project management), supports 60+ languages, and includes video recording. The free tier alone — with unlimited transcription — beats Otter's 300-minute free cap.
Choose Otter.ai if: Real-time live collaboration during meetings is your absolute #1 priority, you don't need CRM integrations or cross-meeting search, and your meeting volume is low enough that minute caps won't bite you.
Choose Fireflies.ai if: You want unlimited transcription, need your meeting assistant to integrate with your tech stack, have international teams, want video recording, or simply want the most value for your money.