Hume AI

Hume AI is an AI research lab focused on emotional intelligence for voice AI systems. They provide open-source models, curated speech datasets, and evaluation APIs to help developers embed emotional understanding into voice models. Their research spans 50+ languages, 48+ emotions, and 600+ voice descriptors. Products include a Human Feedback API, a data library of annotated speech datasets, and both open-source and closed-source LLM TTS and speech-to-speech systems.