output_config

Configuration options for the model's output.

Supports the following keys:

• effort: Controls how many tokens Claude uses when responding. One of "max", "xhigh", "high", "medium", or "low".
• format: Structured output format configuration (typically set via with_structured_output).
• task_budget: Advisory token budget for an agentic loop (beta). E.g., #!python {"type": "tokens", "total": 128_000}.

Example:

.. code-block:: python

ChatAnthropic(
    model="claude-opus-4-7",
    output_config={
        "effort": "xhigh",
        "task_budget": {"type": "tokens", "total": 128_000},
    },
)

See Anthropic docs on extended output.