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

# Extended Thinking

> Enable extended thinking for a Claude agent through Azure AI Foundry.

## Code

```python thinking.py theme={null}
from agno.agent import Agent
from agno.models.azure.claude import Claude

agent = Agent(
    model=Claude(
        id="claude-sonnet-4-6",
        max_tokens=2048,
        thinking={"type": "enabled", "budget_tokens": 1024},
    ),
    markdown=True,
)

agent.print_response("Share a very scary 2 sentence horror story")
```

## Usage

<Steps>
  <Snippet file="create-venv-step.mdx" />

  <Step title="Set your environment variables">
    <CodeGroup>
      ```bash Mac theme={null}
      export ANTHROPIC_FOUNDRY_API_KEY=xxx
      export ANTHROPIC_FOUNDRY_RESOURCE=xxx
      ```

      ```bash Windows theme={null}
      setx ANTHROPIC_FOUNDRY_API_KEY xxx
      setx ANTHROPIC_FOUNDRY_RESOURCE xxx
      ```
    </CodeGroup>
  </Step>

  <Step title="Install dependencies">
    ```bash theme={null}
    uv pip install -U anthropic agno
    ```
  </Step>

  <Step title="Run Agent">
    Save the code above as `thinking.py`, then run:

    ```bash theme={null}
    python thinking.py
    ```
  </Step>
</Steps>