2026/10/21 - 6 updated api methods
Changes Added support for the new voices - Kenneth (en-US), Nate (en-US), Tina (de-DE), Carlos (es-US), Carolina (pt-BR), Leo (pt-BR), Curtis (en-AU), Kiara (en-IN), Arjun (en-IN) and Hyunduk (ko-KR). They are available as a Generative voices only.
2026/03/25 - 5 updated api methods
Changes Add support for Mu-law and A-law codecs for output format
2026/03/19 - 1 new api methods
Changes Added bi-directional streaming functionality through a new API, StartSpeechSynthesisStream. This API allows streaming input text through inbound events and receiving audio as part of an output stream simultaneously.
2026/03/11 - 5 updated api methods
Changes Added support for the new voices - Ambre (fr-FR), Beatrice (it-IT), Florian (fr-FR), Lennart (de-DE), Lorenzo (it-IT) and Tiffany (en-US). They are available as a Generative voices only.
2025/08/19 - 4 updated api methods
Changes Added support for new output format - Opus.
2025/03/26 - 5 updated api methods
Changes Added support for the new voice - Jihye (ko-KR). Jihye is available as a Neural voice only.
2025/02/12 - 7 updated api methods
Changes Added support for the new voice - Jasmine (en-SG). Jasmine is available as a Neural voice only.