Tools

Tools & Function Calling

Enable AI models to call functions, search the web, and execute code in a sandboxed environment.

Function Calling

Define tools using the standard OpenAI function calling format. The AI decides when to call each function based on context.

JSON

{
  "model": "gpt-5.5",
  "tools": [{
    "type": "function",
    "function": {
      "name": "get_weather",
      "description": "Get current weather for a city",
      "parameters": {
        "type": "object",
        "properties": {"city": {"type": "string"}},
        "required": ["city"]
      }
    }
  }]
}

Web Search

Enable models to search the web for real-time, up-to-date information.

JSON

{
  "tools": [{
    "type": "web_search",
    "web_search": {"enabled": true}
  }]
}

Bash Execution

Run shell commands in a sandboxed Linux environment (Claude models).

JSON

{
  "tools": [{
    "type": "bash",
    "bash": {"enabled": true}
  }]
}

⚠️ Model Availability

Tool types vary by model. Check Models & Pricing for per-model capability details.