…ent-config

Add assistant version to client config

Add gpt4o

Add `ToolChoice` to run parameters

Add new openai models

Add o1 models

Add new max tokens field

…-tokens

Add new max tokens field

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Issue: #XXXX

A similar PR may already be submitted!
Please search among the [Pull request](https://github.com/gradientlabs-ai/go-openai/pulls) before creating one.

If your changes introduce breaking changes, please prefix the title of your pull request with "[BREAKING_CHANGES]". This allows for clear identification of such changes in the 'What's Changed' section on the release page, making it developer-friendly.

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**Describe the change**
Please provide a clear and concise description of the changes you're proposing. Explain what problem it solves or what feature it adds.

**Provide OpenAI documentation link**
Provide a relevant API doc from https://platform.openai.com/docs/api-reference

**Describe your solution**
Describe how your changes address the problem or how they add the feature. This should include a brief description of your approach and any new libraries or dependencies you're using.

**Tests**
Briefly describe how you have tested these changes. If possible — please add integration tests.

**Additional context**
Add any other context or screenshots or logs about your pull request here. If the pull request relates to an open issue, please link to it.

Issue: #XXXX

Add latest `o1` model

Add developer chat role

Add reasoning effort and o3 minis

…-completion

Add reasoning effort to chat completion

Add gpt4.5

Adding file data support

Following the python docs here: https://platform.openai.com/docs/guides/images?api-mode=chat&format=base64-encoded

Forgot to add the omitempty tags for marshalling

Add latest openai models