​
Code

cookbook/models/openai/responses/agent_flex_tier.py
from agno.agent import Agent
from agno.models.openai import OpenAIResponses

agent = Agent(
    model=OpenAIResponses(id="o4-mini", service_tier="flex"),
    markdown=True,
)

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

​
Usage

1

Create a virtual environment

Open the Terminal and create a python virtual environment.
python3 -m venv .venv
source .venv/bin/activate
2

Set your API key

export OPENAI_API_KEY=xxx
3

Install libraries

pip install -U openai agno
4

Run Agent

python cookbook/models/openai/responses/agent_flex_tier.py