AI voice generation platform with ultra-realistic speech in 32+ languages
Key facts
Pricing
Freemium
Use cases
Developers building empathic voice interfaces for React, TypeScript, or Python applications using dedicated SDKs and API keys., Content creators generating expressive text-to-speech audio with specific voice acting instructions to convey emotional nuances., Businesses implementing real-time expression measurement to analyze emotional data from media files or live streaming sessions.
Strengths
The platform provides an Empathic Voice Interface (EVI) that processes speech-to-speech interactions with low latency for natural responses., Users can access multiple specialized models including Octave for text-to-speech and EVI for real-time empathic voice communication., The system supports voice cloning from uploaded speech samples and allows for custom voice design using descriptive prompts.
Limitations
The Free plan restricts users to 10,000 text-to-speech characters and 5 minutes of EVI usage per month (verified: 2026-01-29)., Commercial licensing and the ability to use cloned voices via API are gated behind paid subscription tiers (verified: 2026-01-29)., Concurrent connections are limited to one on the Free plan and scale based on the specific paid tier selected (verified: 2026-01-29).
Last verified
Jan 29, 2026
Editorial Review
Best For
- Developers building empathic voice interfaces for React, TypeScript, or Python applications using dedicated SDKs and API keys.
- Content creators generating expressive text-to-speech audio with specific voice acting instructions to convey emotional nuances.
- Businesses implementing real-time expression measurement to analyze emotional data from media files or live streaming sessions.
Strengths
- The platform provides an Empathic Voice Interface (EVI) that processes speech-to-speech interactions with low latency for natural responses.
- Users can access multiple specialized models including Octave for text-to-speech and EVI for real-time empathic voice communication.
- The system supports voice cloning from uploaded speech samples and allows for custom voice design using descriptive prompts.
- Integration is supported through various SDKs and third-party platforms including Vercel AI SDK, LiveKit, Pipecat, Vapi, and Twilio.
Limitations
- The Free plan restricts users to 10,000 text-to-speech characters and 5 minutes of EVI usage per month (verified: 2026-01-29).
- Commercial licensing and the ability to use cloned voices via API are gated behind paid subscription tiers (verified: 2026-01-29).
- Concurrent connections are limited to one on the Free plan and scale based on the specific paid tier selected (verified: 2026-01-29).
FAQ
What are the usage limits for the free version of Hume AI?
The Free plan includes 10,000 text-to-speech characters and 5 minutes of Empathic Voice Interface (EVI) usage per month. It allows for one concurrent connection and 15 requests per minute, but does not include a commercial license or the ability to use cloned voices (verified: 2026-01-29).
Which programming languages and frameworks are supported by the Hume AI SDKs?
Hume AI provides dedicated SDKs for React, TypeScript, and Python to facilitate API integration. These tools manage authentication, audio recording, and playback workflows, allowing developers to build empathic voice features directly into their existing software environments.
How does the pricing structure work for high-volume text-to-speech and voice usage?
Pricing scales through Starter, Creator, Pro, Scale, and Business tiers, with monthly costs ranging from $3 to $500. Higher tiers increase character limits up to 10 million and EVI minutes up to 12,500, while reducing the per-unit cost for additional usage (verified: 2026-01-29).
