Confirm this is a Node library issue and not an underlying OpenAI API issue

• This is an issue with the Node library

Describe the bug

version : 6.9.0

It seems that gpt-5.1-mini is not working properly.

I think it might have been mistakenly labeled as gpt-5.1-mini instead of gpt-5.1-codex-mini.

• https://github.com/openai/openai-node/blob/master/src/resources/shared.ts#L24
• https://platform.openai.com/docs/models/gpt-5.1-codex-mini

To Reproduce

import OpenAI from "openai";
const client = new OpenAI();

const response = await client.responses.create({
  model: "gpt-5.1-mini",
  input: "Write a short bedtime story about a unicorn.",
});

console.log(response.output_text);

Code snippets

OS

macOs

Node version

Node v20.19.3

Library version

openai v6.9.0