GPT 4.1 WebSearch Over Api release?

API
1

When I try using any of the GPT 4.1 over API with websearch API, I get an error code 400:
Code snippet:

** const completion = await client.chat.completions.create({**
** model: “gpt-4.1”,**
** web_search_options: {**
** search_context_size: “low”,**
** },**
** messages: [{**
** “role”: “user”,**
** “content”: query,**
** }],**
** });**

Logs:
Sending request to OpenAI…
Error: 400 Web search options not supported with this model.

The image displays a pricing table for "Web search" showing different costs per 1,000 calls based on the model and search context size used. (Captioned by AI)
The image displays a pricing table for "Web search" showing different costs per 1,000 calls based on the model and search context size used. (Captioned by AI)892×431 30.4 KB

But clearly from OpenAI docs it shows 4.1 as a model that has web search, is the web search variant just not released yet?

2

You are using parameters wrong and have confabulation of methods so bad I’m not even sure what language you are attempting. Web search is a “tool”, only available on the Responses endpoint.

API reference, using node.js SDK

import OpenAI from "openai";

const openai = new OpenAI();

const response = await openai.responses.create({
    model: "gpt-4.1",
    tools: [{ type: "web_search_preview" }],
    input: "What was a positive news story from today?",
});

console.log(response);
3

yea that was the problem, I didnt realize it only worked over responses EndPoint, thank you!