> ## 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

> 基于生产环境实测，使用 GPT、Claude、Gemini 最新主力模型进行联网搜索

> 更新日期：2026-06-06

# Web Search

本文档只收录 **已在 Crazyrouter 生产环境实际请求验证成功** 的 Web Search 用法。

验证时间：

* `2026-03-22`

已验证模型：

* `gpt-5.5`
* `claude-opus-4-8`
* `gemini-3.1-pro`

***

## 已验证能力矩阵

| 模型                | 协议                     | 端点                                            | 成功标志                           |
| ----------------- | ---------------------- | --------------------------------------------- | ------------------------------ |
| `gpt-5.5`         | OpenAI Responses       | `POST /v1/responses`                          | `output` 中出现 `web_search_call` |
| `claude-opus-4-8` | OpenAI-compatible Chat | `POST /v1/chat/completions`                   | 返回 `remote_web_search` 工具调用    |
| `gemini-3.1-pro`  | Gemini Native          | `POST /v1beta/models/{model}:generateContent` | 返回 `groundingMetadata`         |

***

## GPT-5.4

```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 headline from a major technology news site published recently.",
    "tools": [
      {
        "type": "web_search_preview"
      }
    ]
  }'
```

生产验证返回的关键 `output.type`：

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

***

## Claude Sonnet 4.6

```bash cURL theme={null}
curl https://api.crazyrouter.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "claude-opus-4-8",
    "messages": [
      {
        "role": "user",
        "content": "Find one recent technology headline. Use web search and do not answer from memory."
      }
    ],
    "web_search_options": {
      "search_context_size": "medium",
      "user_location": {
        "approximate": {
          "timezone": "Asia/Shanghai",
          "country": "CN"
        }
      }
    },
    "max_tokens": 200
  }'
```

生产验证返回的关键字段：

```json theme={null}
{
  "tool_calls": [
    {
      "type": "function",
      "function": {
        "name": "remote_web_search"
      }
    }
  ],
  "finish_reason": "tool_calls"
}
```

这说明在 Crazyrouter 的 OpenAI-compatible 路由下，Claude 4.6 的联网搜索会以工具调用形式暴露出来。

首轮联调建议：

* 提示词里明确写出 `Use web search`
* 同时补一句 `do not answer from memory`
* 如果提示词过弱，模型可能直接给出文本回答，不一定显式触发 `remote_web_search`

***

## Gemini 3 Pro

```bash cURL theme={null}
curl "https://api.crazyrouter.com/v1beta/models/gemini-3.1-pro:generateContent?key=YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "contents": [
      {
        "role": "user",
        "parts": [
          {
            "text": "Use Google Search to find one recent headline from a major technology news site."
          }
        ]
      }
    ],
    "tools": [
      {
        "googleSearch": {}
      }
    ]
  }'
```

生产验证返回了以下关键字段：

* `groundingMetadata.webSearchQueries`
* `groundingMetadata.groundingChunks`
* `groundingMetadata.groundingSupports`

***

## 相关文档

* [Responses Web 搜索](/chat/responses/web-search)
* [OpenAI Web 搜索](/chat/openai/web-search)
* [Gemini 工具调用](/chat/gemini/tools)