It's still not available in the API despite them announcing the availability.

They even linked to their Image Playground where it's also not available..

I updated my local playground to support it and I'm just handling the 404 on the model gracefully

https://github.com/alasano/gpt-image-1-playground

Yeah I just tried it and got a 500 server error with no details as to why:

  POST "https://api.openai.com/v1/responses": 500 Internal Server Error {
    "message": "An error occurred while processing your request. You can retry your request, or contact us through our help center at help.openai.com if the error persists. Please include the request ID req_******************* in your message.",
    "type": "server_error",
    "param": null,
    "code": "server_error"
  }

  POST "https://api.openai.com/v1/responses": 400 Bad Request {
    "message": "Invalid value: 'blah'. Supported values are: 'gpt-image-1' and 'gpt-image-1-mini'.",
    "type": "invalid_request_error",
    "param": "tools[0].model",
    "code": "invalid_value"
  }

My Enterprise account got an email 1.5 hours ago that it is available in API but my other accounts haven't gotten any email yet

It's a staggered rollout but I am not seeing it on the backend either.