# clm_966BA9DB0107

subject: OpenAI (/record/openai.md)  
predicate: launched  
value: text-to-speech API  
valid_from: 2023-11-06  
valid_to: null  
published: 2023-11-06  
recorded: 2026-11-11  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-11  
cite: AsOf. "OpenAI launched: text-to-speech API", as of 2023-11-06. Claim clm_966BA9DB0107, https://asof.is/claim/clm_966BA9DB0107, accessed 2026-11-11. Source: https://developers.openai.com/api/docs/changelog#2023-11-06.  
checked: 2026-11-11 · its source page states the value and the date  

> Nov 6 Update Released GPT-4 Turbo Preview , updated GPT-3.5 Turbo , GPT-4 Turbo with Vision , Assistants API , DALL·E 3 in the API , and text-to-speech API

What https://developers.openai.com/api/docs/changelog#2023-11-06 says, word for word.

## Sources

- https://developers.openai.com/api/docs/changelog#2023-11-06 (primary, OpenAI (API changelog), published 2023-11-06)

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.