Extended Thinking

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

Code

thinking.py

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

1. Set up your virtual environment

   Mac

   uv venv --python 3.12
   source .venv/bin/activate
   

   uv venv --python 3.12
   .venv\Scripts\activate
   
2. Set your environment variables

   Mac

   export ANTHROPIC_FOUNDRY_API_KEY=xxx
   export ANTHROPIC_FOUNDRY_RESOURCE=xxx
   

   setx ANTHROPIC_FOUNDRY_API_KEY xxx
   setx ANTHROPIC_FOUNDRY_RESOURCE xxx
   
3. Install dependencies

   uv pip install -U anthropic agno
   
4. Run Agent

   Save the code above as thinking.py, then run:

   python thinking.py