Speak is on a mission to help more people become fluent in new languages, starting with English. The company initially launched in East Asia with a focus on South Korea, and has nearly 100,000 paying subscribers. Speak is creating an AI tutor that can have open-ended conversations with learners on any number of topics, providing real-time feedback on pronunciation, grammar, vocabulary, and more.

Speak is using the Whisper API to power a new AI speaking companion product, and rapidly bring it to the rest of the globe. Whisper’s human-level accuracy for language learners of every level unlocks true open-ended conversational practice and highly accurate feedback.

Speak raised funding from the OpenAI Startup Fund.