Chat Verbosity Control

Control response length with the gpt-5 verbosity parameter in a finance report agent.

verbosity_control.py
"""
Openai Verbosity Control
========================

Cookbook example for `openai/chat/verbosity_control.py`.
"""

from agno.agent import Agent
from agno.models.openai import OpenAIChat
from agno.tools.yfinance import YFinanceTools

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

agent = Agent(
    model=OpenAIChat(id="gpt-5", verbosity="high"),
    tools=[YFinanceTools()],
    instructions="Use tables to display data.",
    markdown=True,
)
agent.print_response("Write a report comparing NVDA to TSLA", stream=True)

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------

if __name__ == "__main__":
    pass

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 yfinance

Export your OpenAI API key

export OPENAI_API_KEY="your_openai_api_key_here"

Run the example

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

python verbosity_control.py

Full source: cookbook/90_models/openai/chat/verbosity_control.py