Xiaomi MiMo Structured Output

Request JSON and validate a MovieScript with Pydantic through MiMo.

Both agents below request JSON Object mode (response_format={"type": "json_object"}) and validate against MovieScript locally. With this MiMo adapter, use_json_mode=True is redundant when output_schema is set: the second agent also takes the JSON-mode path. The pinned adapter does not request native JSON Schema; this does not describe every MiMo API. See MiMo's documented Chat JSON mode.

structured_output.py
"""
Xiaomi MiMo Structured Output
=============================

Get a typed Pydantic object back instead of free text. MiMo supports JSON mode
(`response_format={"type": "json_object"}`) but not native json_schema structured
outputs, so pass `use_json_mode=True` alongside `output_schema`.
"""

from typing import List

from agno.agent import Agent
from agno.models.xiaomi import MiMo
from pydantic import BaseModel, Field

# ---------------------------------------------------------------------------
# Define the output schema
# ---------------------------------------------------------------------------


class MovieScript(BaseModel):
    setting: str = Field(
        ..., description="Provide a nice setting for a blockbuster movie."
    )
    ending: str = Field(
        ...,
        description="Ending of the movie. If not available, provide a happy ending.",
    )
    genre: str = Field(
        ...,
        description="Genre of the movie. If not available, select action, thriller or romantic comedy.",
    )
    name: str = Field(..., description="Give a name to this movie")
    characters: List[str] = Field(..., description="Name of characters for this movie.")
    storyline: str = Field(
        ..., description="3 sentence storyline for the movie. Make it exciting!"
    )


# ---------------------------------------------------------------------------
# Create Agent
# ---------------------------------------------------------------------------

# MiMo does not support native json_schema structured outputs, so use JSON mode.
jsonagent = Agent(
    model=MiMo(id="mimo-v2.5-pro"),
    description="You help people write movie scripts.",
    output_schema=MovieScript,
    use_json_mode=True,
)
structureagent = Agent(
    model=MiMo(id="mimo-v2.5-pro"),
    description="You help people write movie scripts.",
    output_schema=MovieScript,
)

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    jsonagent.print_response("New York")
    structureagent.print_response("New York")

output_schema describes the expected type. If parsing or validation fails, result.content can remain a string. Before accessing schema fields in a run result, use isinstance(result.content, YourSchema), replacing YourSchema with the class you passed as output_schema.

Run the Example

Set up your virtual environment

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

Install dependencies

uv pip install -U agno openai

Export your Xiaomi MiMo API key

export MIMO_API_KEY="your_mimo_api_key_here"

Run the example

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

python structured_output.py

Full source: cookbook/90_models/xiaomi/structured_output.py