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AI Voice & Speech Comparison

Hume AI vs. Otter.ai

At a glance

At a glance

Hume AI

Best for

Best for apps and content that need expressive, emotionally aware speech and real-time voice interactions.

  • Freelancers
  • Small and mid-sized
  • Enterprise

Otter.ai

Best for

Best for teams who need every meeting written up, summarised and pushed into the tools where the follow-up actually happens.

  • Freelancers
  • Small and mid-sized
  • Enterprise

Cataleo does not name a winner. Both statements come from the vendors themselves.

Full Comparison

Criterion Hume AI Otter.ai
Starting price lower value Free tier; paid from $3 / month Paid tiers are metered by monthly TTS characters and EVI minutes. Free tier, then from $8.33 / user / month The $8.33 Pro rate is billed annually; paid monthly it is $16.99. Business is $19.99 / user / month billed annually or $30 monthly. The free Basic plan carries 300 transcription minutes a month and 3 lifetime file imports.
Free trial Free tier with 10,000 TTS characters and 5 minutes of EVI per month Free Basic plan with 300 monthly transcription minutes
Commercial use Yes Not stated
Output Expressive text-to-speech (Octave) and empathic speech-to-speech (EVI) Live transcripts, meeting summaries and action items
API Yes On Enterprise
Hosting Not stated Cloud, with desktop apps for Mac and Windows, mobile apps and a Chrome extension
Voice cloning Yes, from about 15 seconds of audio No, Otter transcribes and summarises speech and does not synthesise or clone voices
Real-time use Yes, Octave 2 streaming with latency as low as about 100ms Yes, live transcription and captions during the meeting, either with Otter joining the call or recording from the desktop app without a bot
Languages Octave 2 in 11 languages One language per conversation, selected in settings; the supported set includes English (US and UK), Spanish, French and Japanese
Speech-to-speech and dubbing Yes, the EVI empathic voice interface No dubbing or speech-to-speech translation
Editing and controls Voice design from text prompts (English), plus emotional expression from context Speaker identification, meeting summaries with decisions and action items, AI Chat across past meetings and connected apps, workflow agents for sales and recruiting, and playback speeds from 0.5x to 3x with skip-silence on paid plans
Consent and trust Cloning requires filling out a legal agreement confirming you hold the rights or consent for the sample, and use is bound by Hume's Terms of Use and Ethical Guidelines Enterprise adds SSO and SCIM, admin controls over access policies and sharing, audit logging, and an opt-out from AI model training arranged through an account manager
MCP-ready No stated Yes
Deployment Cloud (SaaS), Browser-based Cloud (SaaS), Browser-based
Support Community forum Not stated
Onboarding Documentation and knowledge base Documentation and knowledge base
Company size Freelancers, Small and mid-sized, Enterprise Freelancers, Small and mid-sized, Enterprise
Integrations Not stated Zoom, Microsoft Teams, Google Meet, RingCentral, HubSpot, Salesforce, Microsoft Dynamics, Salesloft, Outreach, Slack, Notion, Asana, ClickUp, Jira, monday.com, Google Calendar, Microsoft Outlook, Google Drive, Dropbox, Microsoft OneDrive, SharePoint, Amazon S3, Snowflake, Zapier

Compare more tools

Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.

The short version

Key Differences

  • Starting price Hume AI Free tier; paid from $3 / month Otter.ai Free tier, then from $8.33 / user / month
  • Free trial Hume AI Free tier with 10,000 TTS characters and 5 minutes of EVI per month Otter.ai Free Basic plan with 300 monthly transcription minutes
  • MCP-ready Hume AI No Otter.ai Yes
  • Output Hume AI Expressive text-to-speech (Octave) and empathic speech-to-speech (EVI) Otter.ai Live transcripts, meeting summaries and action items
  • API Hume AI Yes Otter.ai On Enterprise

Every line is one datapoint from the table above, picked automatically. Nothing here is written text.

The trade-offs

Strengths and Limitations

Hume AI

Strengths

  • Expressive, emotionally aware speech
  • Voice cloning from about 15 seconds and voice design from text prompts
  • Low-latency streaming for real-time voice agents

Limitations

  • Voice design and acting instructions are English only or still in preview
  • Character and EVI-minute caps scale the monthly cost

Otter.ai

Strengths

  • Records without a bot in the call from the desktop app
  • Summaries and action items sync into CRM, chat and project tools
  • MCP server exposes meeting data to Claude and ChatGPT
  • Free plan with 300 transcription minutes a month

Limitations

  • Transcription only, no text-to-speech or voice cloning
  • A small number of languages, and only one per conversation
  • Per-meeting length caps on the lower plans: 30 minutes on Basic and 90 on Pro
  • API access is reserved for Enterprise

Plans

Pricing

Hume AI

  • Free $0 10,000 TTS characters and 5 minutes of EVI per month.
  • Starter $3 / month 30,000 TTS characters and 40 minutes of EVI per month.
  • Creator $14 / month 140,000 TTS characters and 200 minutes of EVI per month; 50% off the first month.
  • Pro $70 / month 1M TTS characters and 1,200 minutes of EVI per month.
  • Scale $200 / month 3.3M TTS characters and 5,000 minutes of EVI per month.
  • Business $500 / month 10M TTS characters and 12,500 minutes of EVI per month.
  • Enterprise Not stated Custom pricing with unlimited usage.
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Otter.ai

  • Basic Free 300 transcription minutes a month, 30 minutes per conversation, 3 lifetime audio or video file imports, and the 25 most recent conversations retained.
  • Pro $8.33 Per user per month billed annually, or $16.99 billed monthly. 1,200 in-app recording minutes a month, 10 file imports a month, up to 90 minutes per meeting, unlimited storage and playback speeds from 0.5x to 3x.
  • Business $19.99 Per user per month billed annually, or $30 billed monthly. Unlimited meetings and in-app recordings, unlimited file imports, up to 4 hours per meeting, three concurrent meetings and admin features.
  • Enterprise Not stated Custom pricing arranged through a demo. Adds SSO and SCIM, audit logging, admin controls, API access, video replay, unlimited custom AI workflows and a HIPAA compliance add-on.
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What users say

Review Scores · opens after launch

Hume AI

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Otter.ai

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Where this comes from

Where this comes from

Hume AI https://www.hume.ai · no check date recorded yet

Otter.ai https://otter.ai · checked against the official source on 2026-09-04

This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.