GPT-3.5 Turbo, DALL·E and Whisper APIs are also generally available, and we are releasing a deprecation plan for older models of the Completions API, which will retire at the beginning of 2024.
I don't think so. But GPT-4 API was on waitlist (I was stuck on it for a long time) and every paying user now got access to it. It is still billed per token and GPT-4 tokens are more expensive (30x) than GPT-3.5 turbo