GPT 5.5 in SDK

[LoGic142]

Is GPT 5.5 available in the SDK?

[tamish-max]

The SDK is usually model-name agnostic. In practice, if a model is available to your account/API, you can call it by passing the model string directly; the Python package normally does not need a special release just to recognize a new model name.

So the rule of thumb is:

• if client.responses.create(model="gpt-5.5", ...) (or the matching endpoint) works, the SDK is already fine;
• if you get model_not_found / 404 / access errors, the blocker is model rollout or account access, not the SDK itself.

client.models.list() can help you see what your org can access, but the most reliable check is a tiny test request against the endpoint you plan to use.

[LoGic142]

Yes Tamish, figured this out, after doing this same test.

Thanks a lot for your reply :)

[aasimansari1]

GPT-5.5 is not currently available in the API or SDK. Available models include gpt-4o, gpt-4o-mini, gpt-4-turbo, o1, o3, o4-mini.

Check available models:

from openai import OpenAI
client = OpenAI()
for model in client.models.list().data:
    print(model.id)

When new models are released, OpenAI announces them at platform.openai.com/docs/models — no SDK update needed, just pass the new model name string.

[LoGic142]

Beg to differ, 5.5 is available in the API.