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Hume AI

Hume AI

3.1 (3 reviews)

AI Assistant , Content Creation , Developer Tools

Hume AI offers advanced emotional intelligence for voice and expression analysis, primarily for developers building custom applications.

Best for developers creating emotionally expressive AI applications, weaker for out-of-the-box customer support solutions.

Ai Ai Voice Conversational Ai Emotion Recognition Speech Synthesis Llm Api

Analysis based on product data, pricing structure, traffic signals, and public user sentiment.

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Who Should Use Hume AI?

Typical users

Developers, AI researchers, and content creators looking to integrate sophisticated emotional understanding and generation into their applications or media. Suitable for teams with technical expertise.

Maturity fit

scaling to advanced

Choose this if…

You need to build AI that understands and generates nuanced human emotions.
Your project requires highly expressive and context-aware voice synthesis.
You have the development resources to integrate APIs and SDKs.
You are creating interactive AI experiences where emotional resonance is key.

Skip this if…

You need a ready-to-use customer support automation tool.
Your team lacks development expertise for API integration.
You require broad language support beyond English for core functionality.
Your primary need is simple text-to-speech without emotional nuance.

About Hume AI

Hume AI is a developer-focused platform that provides tools for analyzing and generating human emotions through voice and text. It aims to create more empathetic and natural human-machine interactions by leveraging advanced speech-language and expression measurement models. The platform is designed for creators and developers building custom AI applications.

What it actually does

Hume AI offers APIs and SDKs to analyze emotional cues from voice, facial expressions, and text, and to generate expressive, emotionally intelligent speech. Its Octave text-to-speech model and Empathic Voice Interface (EVI) enable the creation of AI that can understand and respond to human emotions in real-time.

What makes it different

Hume AI differentiates itself by focusing on "empathic AI" and affective computing, moving beyond basic speech synthesis to incorporate emotional intelligence. Its Octave model is a speech-language model that understands context and emotion, not just words, and its EVI allows for real-time, two-way emotional dialogue. This focus on emotional nuance and understanding sets it apart from standard TTS or voice AI platforms.

Multimodal emotion recognition (voice, text, video) Emotionally expressive speech synthesis (Octave TTS) Real-time conversational AI (EVI) Voice cloning Custom voice design from natural language prompts Speech-to-speech interaction Expression measurement from audio, video, and text API and SDK access for developers

Ratings across the web

3.1 (3 reviews)

Trustpilot 3 reviews

3.1/5

Ratings aggregated from independent review platforms.

Key Features

Empathic Voice Interface (EVI)

Enables real-time, emotionally intelligent conversations where the AI understands and responds to vocal cues.

Octave Text-to-Speech (TTS)

Generates natural-sounding speech that interprets context and emotion, allowing for nuanced delivery beyond simple word reading.

Expression Measurement API

Analyzes emotional cues from audio, video, and text to provide insights into human feelings at scale.

Voice Design & Cloning

Allows users to create custom voices by describing them in natural language or cloning existing voices from short audio samples.

Acting Instructions

Enables direct control over voice delivery with prompts like 'sound sarcastic' or 'whisper fearfully'.

Multimodal Analysis

Combines voice, facial, and text data for a more comprehensive understanding of emotional states.

Pricing

Free

10,000 text-to-speech characters
5 minutes of EVI usage
Access to Octave 1 and EVI 3 models
1 concurrent connection
Voice cloning (create only)
Discord support

Starter

$3 month

30,000 text-to-speech characters
Includes commercial license
External LLMs
Unlimited voice cloning (create and use)
Discord support

Popular

Creator

$14 month

140,000 text-to-speech characters
1,200 minutes of EVI usage
10 concurrent connections
Commercial license
Unlimited voice cloning (create and use)
Discord support

Pro

$70 month

1,000,000 text-to-speech characters
10,000 minutes of EVI usage
30 concurrent connections
Commercial license
Unlimited voice cloning (create and use)
Discord support

Scale

$200 month

3,300,000 text-to-speech characters
5,000 minutes of EVI usage
20 concurrent connections
Commercial license
Unlimited voice cloning (create and use)
Discord support

Business

$500 month

10,000,000 text-to-speech characters
12,500 minutes of EVI usage
30 concurrent connections
Commercial license
Unlimited voice cloning (create and use)
Discord support

Enterprise

Custom month

Custom limits
Dedicated support
Compliance options (SOC 2, GDPR, HIPAA)
White-label features

Pricing checked 6 months ago

Pricing guidance

Best plan for most users: The Creator plan at $14/month offers a good balance of included TTS characters and EVI minutes for developers and creators who are actively building and testing applications.

Free plan enough? No — The free plan is suitable for initial exploration and prototyping but its limited character and EVI minutes will be quickly exhausted for any serious development or application use.

Upgrade when:

When you exceed the monthly included text-to-speech characters.
When you require more than the included EVI minutes for conversational AI.
When you need more concurrent connections for your application.
When you need a commercial license for wider distribution.

Watch out for:

Overage costs for characters and EVI minutes can become significant.
The Expression Measurement API is priced separately on a pay-as-you-go basis, which can add to overall costs.
While voice cloning is available, the minimum audio sample for cloning might be a consideration.
Support is primarily through Discord, which may not be sufficient for enterprise-level needs.

Tiered subscription plans for voice generation with usage-based pricing for conversational AI and expression measurement, positioned as a developer tool with costs scaling with usage.

Pros & Cons

Strengths

Advanced Emotional Intelligence
Hume AI excels at understanding and generating nuanced human emotions in speech and text, making interactions feel more natural and empathetic. This is crucial for applications where emotional resonance is key.
Expressive Speech Synthesis
The Octave TTS model goes beyond standard text-to-speech by interpreting context and emotion, allowing for highly expressive and realistic voiceovers for audiobooks, podcasts, and character dialogue.
Developer-Focused Tools
Hume provides robust APIs and SDKs for various languages, enabling developers to integrate its sophisticated emotion AI capabilities into custom applications and platforms.
Real-time Conversational AI
The Empathic Voice Interface (EVI) facilitates real-time, two-way conversations where the AI can actively listen to and respond to vocal emotional cues, enhancing user engagement.
Customizable Voice Creation
Users can design unique voices through natural language prompts or clone existing voices, offering significant flexibility for creative projects and branding.

Weaknesses

Complex Integration Requirements
As a developer-focused platform, Hume AI requires significant technical expertise to integrate its APIs and SDKs into existing workflows or applications.

Affects: Teams without dedicated developers
Unpredictable Pricing for High Usage
The pay-as-you-go model for expression measurement and tiered subscriptions with overage charges can lead to unpredictable monthly costs, especially for high-volume usage.

Affects: Businesses with variable or high-volume usage
Limited Out-of-the-Box Business Solutions
While powerful for building custom AI, Hume AI is not a ready-to-use solution for common business needs like customer support automation, requiring substantial custom development.

Affects: Non-technical business users and support teams
Primarily English Language Focus
While some multilingual capabilities are emerging, the core strength and most robust performance are in English, limiting its utility for global applications.

Affects: Global businesses and non-English speaking markets

Real User Sentiment

Users are impressed with Hume AI's advanced emotional intelligence and expressive voice capabilities, particularly for creative applications. However, some find the integration complex and the pricing model unpredictable for high-volume use.

Users tend to like

The nuanced emotional understanding and generation in voice.
The realism and expressiveness of the Octave TTS voices.
The ability to create custom voices and personalities.
The potential for creating truly empathetic AI interactions.

Users commonly complain about

Integration can be complex and requires significant developer resources.
Pricing can become expensive with high usage due to overage charges and separate API costs.
Limited language support beyond English for core features.
Not a plug-and-play solution for common business applications like customer support.

Recurring tradeoffs

Emotional nuance and expressiveness vs. integration complexity and cost.
Developer-centric tools vs. out-of-the-box business solutions.

Happiest users

Developers and creators building custom AI applications that require sophisticated emotional understanding and expressive voice generation.

Often frustrated

Non-technical users or businesses seeking immediate, off-the-shelf solutions for customer service or general AI assistance.

Use Cases

Creating emotionally resonant audiobooks with multiple characters.

Developing AI-powered virtual companions for mental wellness or senior care.

Building interactive characters for video games or virtual reality experiences.

Generating realistic and expressive voiceovers for marketing videos and advertisements.

Enhancing customer service chatbots with empathetic and understanding voice interactions.

Enabling AI tutors that can adapt their tone based on student engagement.

Researching human-computer interaction and affective computing.

Frequently Asked Questions

What is Hume AI?

Hume AI is a research lab and technology company focused on developing "empathic" AI that can understand and generate human-like emotional speech. It utilizes advanced speech-language models, like Octave for text-to-speech and the Empathic Voice Interface (EVI) for speech-to-speech conversations, to create more natural and emotionally intelligent human-machine interactions. Their technology analyzes vocal cues, facial expressions, and text to interpret and express a wide range of human emotions.

How does Hume AI's pricing work?

Hume AI's pricing is structured into tiered monthly subscription plans for its voice products (Octave TTS and EVI), which include a set amount of characters or minutes. There is also a separate pay-as-you-go model for its Expression Measurement APIs. Overage charges apply if you exceed your plan's limits. A free plan is available for basic exploration, with paid plans starting at $3/month for the Starter tier.

What are the main limitations of Hume AI?

Key limitations include the complexity of integration, requiring significant developer resources. Pricing can become unpredictable and expensive for high-volume usage due to overage charges and separate API costs. While it excels in English, its language support beyond English is less robust. Furthermore, it's primarily a developer toolkit and not a ready-to-use solution for common business applications like customer support, necessitating substantial custom development.

How does Hume AI compare to ElevenLabs?

Hume AI focuses on emotional intelligence and understanding context to deliver expressive speech, making its voices sound more natural and empathetic. Its EVI allows for real-time conversational AI that responds to vocal cues. ElevenLabs, on the other hand, is often praised for its raw voice quality, speed, and broader language support, making it a strong choice for narration and content creation where pure audio fidelity is paramount. Hume AI is better for applications where emotional nuance and interactive empathy are critical, while ElevenLabs excels in high-quality, fast voice generation across many languages.

Can Hume AI be used for customer support?

While Hume AI's technology can be integrated into customer support applications to provide empathetic voice interactions, it is not an out-of-the-box solution. It requires significant custom development by a technical team to build the necessary workflows, knowledge integration, and business logic. Platforms like eesel AI are designed specifically for customer support automation and offer more integrated, ready-to-use solutions.

What kind of integrations does Hume AI offer?

Hume AI provides APIs and SDKs for various programming languages, including React, TypeScript, Python, .NET, and Swift, to facilitate integration into custom applications. They also list integrations with platforms like Vercel AI SDK, LiveKit, Pipecat, Vapi, Twilio, and Agora, which can help developers build real-time voice applications more efficiently.

Is there a free plan for Hume AI?

Yes, Hume AI offers a free plan that provides 10,000 text-to-speech characters per month and 5 minutes of EVI usage. This plan is suitable for individuals and early-stage teams to explore its capabilities, test prototypes, and integrate basic empathic voice features. It includes access to Octave 1 and EVI 3 models, voice cloning (creation only), and Discord support, with no credit card required to sign up.

Why trust this page?

This evaluation combines product positioning, pricing analysis, traffic and market signals, and public user sentiment into a single decision-support page. Content is generated editorially — not copied from the vendor's website.

Funding & Company

Founded

2021

Stage

Series b

Total Raised

$62.7M

Latest Round

Series B (Mar 2024)

Notable Investors

EQT Ventures Union Square Ventures Comcast Ventures LG Technology Ventures

Hume AI has raised a total of $62.7 million over two rounds, including a significant $50 million Series B in March 2024. This substantial and recent funding from reputable venture capital firms provides a strong financial foundation for product development and market expansion.

Full funding report high confidence

Market Signals & Traffic

Estimated visits, global rank, geography, traffic sources, monthly visit trends, and organic search keywords (Similarweb)—on a dedicated page built for depth and search.

Estimated visits: 340,019
Global rank: #112,918
Snapshot: Apr 2026
Traffic trend: Cooling