Mustafa Sait Demirci is Co-Founder at Lucida AI, an AI-powered English speaking coach that has driven over 2 billion minutes of practice conversations. The platform uses proprietary speech-to-speech technology to help users achieve C1 English fluency in 3 months.

Mustafa studied at TED University in Ankara, Turkey, where he conducted research in human-computer interaction and virtual reality. He has a background in computer engineering and interactive computing technology.

Mustafa co-founded Lucida AI alongside Mustafa Girgin, building a platform that serves major organizations including Efor Group and educational institutions across Turkey and Colombia. The company secured partnerships with over 1,000-employee enterprises within its first year.

Lucida AI raised $500K in seed funding from Neo Portfoy in September 2024, with total funding reaching $1.25M from investors including Look AI Ventures and Next Tier Ventures. The platform achieved 22% organic revenue and reached top 10 charts in its category.

Lucida AI has processed over 2 billion minutes of spoken English practice and provides real-time feedback on pronunciation, grammar, vocabulary, and fluency. The platform serves corporate employees, educational institutions, and language learners across multiple countries with its touch-free, AI-powered coaching solution.