GPT-4o-mini-tts

Kakao's Kanana-o model now accepts plain-language voice instructions such as 'read it in a sad voice' or 'read it in a Gyeongsang dialect', reflecting them in speed, volume, pitch, emotion, intonation…

Kakao detailed improvements to its Kanana-o speech model on August 4, 2026, enabling users to control speaking speed, volume, pitch, emotion, intonation, and dialect via natural-language prompts. In K…