> ## Documentation Index
> Fetch the complete documentation index at: https://docs.crazyrouter.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Web Search

> Production-revalidated OpenAI-style web search on Crazyrouter

> Last updated: 2026-06-06

# Web Search

This page only documents OpenAI-style web search behavior that was revalidated against Crazyrouter production on `2026-03-22`.

The current primary path is:

* `gpt-5.5`
* `POST /v1/responses`
* `tools: [{ "type": "web_search_preview" }]`

## Current conclusion

In today's production recheck:

* `gpt-5.5` via the Responses API reliably returned `web_search_call`
* the older Chat Completions probe using `tools: [{ "type": "web_search" }]` returned `200`, but did not provide a stable, verifiable search trigger signal, so it is not used as the primary documented pattern

***

## Verified request

```bash cURL theme={null}
curl https://api.crazyrouter.com/v1/responses \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "gpt-5.5",
    "input": "Use web search to find one current technology headline published recently.",
    "tools": [
      {
        "type": "web_search_preview"
      }
    ]
  }'
```

Verified `output.type` values:

```json theme={null}
["web_search_call", "message"]
```

This shows that the search step and the final answer are returned separately.

***

## Python example

```python Python theme={null}
from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://api.crazyrouter.com/v1"
)

response = client.responses.create(
    model="gpt-5.5",
    input="Use web search to find one current technology headline published recently.",
    tools=[
        {"type": "web_search_preview"}
    ]
)

print(response.output_text)
```

***

## How to confirm search actually ran

Inspect `response.output` directly:

```python Python theme={null}
for item in response.output:
    print(item.type)
```

If you see:

```text theme={null}
web_search_call
message
```

then the model searched first and answered second.

***

## Older pattern not recommended as primary

This production recheck also probed the older Chat Completions shape:

```json theme={null}
{
  "tools": [
    {
      "type": "web_search"
    }
  ]
}
```

Result:

* the request returned `200`
* but no stable, verifiable search trigger marker was observed

So for Crazyrouter docs, OpenAI-style web search should currently be documented through the Responses API first.

Related pages:

* [Responses Web Search](/en/chat/responses/web-search)
* [Feature Hub: Web Search](/en/features/web-search)