Voice & Audio
Otter.ai vs Vapi.
Both are Voice & Audio tools, scored on the same six pillars by the same published method. Here's where they part company.
The short answer
Too close to call on score alone — Otter.ai sits at 85.0 and Vapi at 85.3. A gap that size is inside the noise of any honest scoring model, so pick on fit rather than rank.
Otter.ai leads on maturity & reliability and security & compliance; Vapi leads on momentum.
Otter.ai
85.0
Excellent
The dedicated AI meeting notetaker: live transcription, summaries and follow-up on every call.
- From
- Free / $8.33 per month (Pro, billed annually)
- Pricing
- Freemium
- Maturity
- Mature
- Founded
- 2016
Vapi
85.3
Excellent
Developer platform for building production voice AI agents.
- From
- $0.05 per minute + provider costs
- Pricing
- Usage-based
- Maturity
- Established
- Founded
- 2023
Pillar by pillar
The same six pillars and fixed weights used for every tool on the site. A lead of fewer than 5 points is not called for either side — these are evidence-backed judgements, not measurements. Read the methodology.
Capability
Level
Value for Money
Level
Security & Compliance
Otter.ai by 7
Integrations & Ecosystem
Level
Maturity & Reliability
Otter.ai by 12
Momentum
Vapi by 10
Which one, and when
Pick Otter.ai if
- →it has to hold up in production from day one — it leads Maturity & Reliability by 12 points.
- →compliance and data control decide it — it leads Security & Compliance by 7 points.
- →Teams that want every meeting transcribed and summarized without manual note-taking
- →Sales and recruiting teams syncing call notes straight into Salesforce or HubSpot
- →Regulated orgs (healthcare, legal) needing HIPAA-compliant meeting records
The catch
- Not a general assistant — no broad reasoning, coding or document work outside meetings
- HIPAA compliance and advanced admin controls are Enterprise-only, not on Pro/Business
Pick Vapi if
- →where the product will be in a year matters as much as today — it leads Momentum by 10 points.
- →Voice agents for support and sales calls
- →Telephony automation at scale
- →Teams wanting provider flexibility
The catch
- Per-minute costs stack with underlying providers
- Developer-focused; no true no-code experience
What each is good at
Otter.ai
- ✓Purpose-built for meetings: live transcription, speaker ID and automatic action items, not a bolted-on feature
- ✓Enterprise tier carries SOC 2 Type II and HIPAA compliance plus SSO/SCIM
- ✓Scale most notetakers can't show: 35M+ users and over 1 billion meetings transcribed
Vapi
- ✓Sub-second latency voice orchestration at scale
- ✓Model- and voice-provider agnostic
- ✓Rich developer tooling: testing, squads, analytics
Other comparisons in Voice & Audio
Comparing something else? Build your own side-by-side across any tools in the catalog.