Voice Freemium

Hume AI

Voice AI APIs for emotionally expressive speech, TTS, and real-time voice agents.

Visit official website
PricingFreemium
Starting price$3/month
Free planYes
Free trialYes
APIYes
Open sourceNo
DeploymentAPI
Last verifiedJune 27, 2026
Overview

Tool overview

Hume AI is listed under Voice AI tools.

Summary

What is Hume AI?

  • Hume AI provides voice AI APIs and models for expressive text-to-speech
  • speech-to-speech
  • voice design
  • voice cloning
  • and emotionally intelligent voice interfaces. It is built for developers and teams adding natural
  • empathic voice experiences to apps
  • agents
  • and products.
Best fit

Best for

  • AI developers
  • Voice agent builders
  • Conversational AI startups
  • Product teams adding speech interfaces
  • Research teams evaluating voice models
  • Teams building TTS
  • speech-to-speech
  • or voice cloning workflows
Audience

Who is it for?

DevelopersAI product teamsVoice AI startupsResearch teamsEnterprise teams building conversational interfacesCreative and education teams using expressive speech
Capabilities

Key features

Empathic Voice Interface for real-time speech-to-speech

Expressive Octave text-to-speech

Voice design, voice cloning, and voice conversion

API reference, SDKs, and example projects

Integrations for MCP, Vercel AI SDK, LiveKit, Pipecat, Vapi, Twilio, and Agora

Related categories: Voice AI, Developer Tools, Conversational AI

Workflows

Use cases

Build emotionally aware voice assistants

Add expressive TTS to apps and content workflows

Prototype real-time speech-to-speech agents

Create or clone voices with user consent

Run human feedback studies for voice models

Integrate voice AI into web, mobile, and telephony workflows

Strengths

Pros

  • Clear official API documentation
  • Free plan and low-cost Starter plan available
  • Supports EVI, TTS, voice design, voice cloning, and voice conversion
  • SDKs and integrations help developers implement voice workflows
  • 50+ languages and 48+ emotions are described on the official site
Considerations

Cons

  • Advanced usage can become usage-based or require higher plans
  • Enterprise compliance and support require higher tiers
  • Mainly developer/API focused rather than a simple consumer voice app
  • Some models and capabilities are closed source
Considerations

Limitations

Plan limits apply to included TTS characters, EVI minutes, concurrent connections, and request limits

Sensitive or regulated voice use cases may require additional consent, compliance, and security review

Free trial is not clearly listed as a separate paid-plan trial on the official pricing page

Cost

Pricing details

Pricing modelFreemium
Starting price$3/month
Free planYes
Free trialYes
Pricing context

Billing options

Monthly

View official pricing
Compatibility

Supported languages

  • 50+ languages
Connectivity

Integrations

MCP Vercel AI SDK LiveKit Pipecat Vapi Twilio Agora React SDK TypeScript SDK Python SDK Swift SDK .NET SDK

Specs

Technical details

PlatformsAPI
Multilingual supportYes
Login requiredYes
Open sourceNo
LicenseCommercial
DeploymentAPI
CompanyHume AI
Current versionUnknown
Models / versionsEVI 4-mini EVI 3 Octave 2 Octave 1 TADA
Editions / plansFree, Basic, Professional, Organization, and Custom plans
Data confidenceHigh
Last verifiedJune 27, 2026
Documentation → Release notes → Data source →
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Answers

Frequently asked questions

Hume AI provides voice AI APIs and models for expressive text-to-speech, speech-to-speech, voice design, voice cloning, and emotionally intelligent voice interfaces. It is built for developers and teams adding natural, empathic voice experiences to apps, agents, and products.
AI developers Voice agent builders Conversational AI startups Product teams adding speech interfaces Research teams evaluating voice models Teams building TTS, speech-to-speech, or voice cloning workflows
The listed pricing model for Hume AI is Freemium. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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