May 12, 2026
- We've shipped an updated version of Blizzard 2.0 to further improve speaker similarity & pronunciation edge cases.
May 9, 2026
- We've released API 1.1, which cleans up legacy options from our earliest models, overhauls the speech sessions protocol,
adds a structured error envelope for all errors, and adds a
request-idheader on every response. - We've improved speech sessions reset latency, which helps when handling user interrupts.
- We've shipped updated Python and TypeScript SDKs that support API 1.1.
May 7, 2026
- We've released Blizzard 2.0, which supports 7 new languages (Assamese, Bengali, Danish, Malayalam, Marathi, Tamil, and Telugu), improves latency, and improves pronunciation on edge cases.
May 4, 2026
- We've overhauled our docs with improved guides, clarity, and walkthroughs.
December 10, 2025
- We've improved speech generation time-to-first-byte globally.
November 25, 2025
- We've released Blizzard 1.4, which improves audio quality and fixes edge cases where certain voices could start unprompted screaming.
November 6, 2025
- We've reduced latency when requesting word timestamps.
September 24, 2025
- We've improved voice clone background noise handling.
September 15, 2025
- We've improved voice clone creation latency.
September 12, 2025
- We've released Blizzard 1.3, with new support for Czech, Finnish, and Slovak.
July 21, 2025
- We've released Blizzard 1.2, with new support for Arabic.
July 17, 2025
- We've released v2 of our Python SDK.
June 27, 2025
- We've added .webm & .opus output to speech generation and speech sessions.
June 17, 2025
- We've added support for Urdu.
May 28, 2025
- We've retired professional voice clones. Instant voice clone quality now meets our quality bar to replace professional clones.
- We've added .ogg format support for voice cloning.
May 22, 2025
- We've made Blizzard our default model.
May 14, 2025
- We've released Blizzard 1.1.
May 1, 2025
- We've improved word timestamp accuracy.
April 16, 2025
- We've added support for Indonesian, Dutch, Polish, Swedish, Thai, Ukrainian, and Vietnamese.
February 7, 2025
- We've released Blizzard 1.0 with support for English, Spanish, Portuguese, French, German, Chinese, Korean, Hindi, Japanese, Russian, Italian, and Turkish.
January 17, 2025
- We've released version v2.1 of our TypeScript SDK, with speech session support.
January 13, 2025
- We've released v2 of our TypeScript SDK.
December 12, 2024
- We've released our upcoming model Blizzard for early English-only preview in the Playground and in the API.