Update… It seems like Cursor added o3 to custom-key!
I noticed o3 was available even in BYOK mode:
But when I tried it says I can’t stream o3 without being a Verified Organization.
So I went to OpenAI Organization Settings to get my organization verified:
(It’s a relatively easy verification)
Then o3 streamed fine using BYOK in Cursor. Good enough for me to burn my API credits. o3 + MAX will do nicely, as my OpenAI API key expires soon. Thank you!