'response_format' field in OpenAI image creation request does not match OpenAI API spec about localai

[mudler]

I can confirm that the current implementation of response_format is overlapping with the ChatCompletion one, which differs from the image endpoint - it needs to be extended to support the image endpoint response_format as well and be slightly more generic.

[localai-bot]

Thank you for reporting this issue, Ephex2. I can confirm that the current implementation of the response_format field in the OpenAI request does cause compatibility issues with the OpenAI API specification for image generation.

To address this, we will need to update the openai.go file in the LocalAI repository to align with the OpenAI API specification for image creation requests. Specifically, we should update the OpenAIRequest struct to support the response_format field as a string, with the omitempty tag added to the field as you suggested.

Once this update is made, the issue should be resolved, and the LocalAI API models should work as expected with the OpenAI API when making image creation calls.

I'll create a pull request to address this issue and mention this discussion in the PR description for reference.

Thanks again for bringing this to our attention! If you have any further questions or concerns, please don't hesitate to reach out.