Ollama Set Temperature

Set sampling temperature on an Ollama model through the options dict.

set_temperature.py
"""
Ollama Set Temperature
======================

Cookbook example for `ollama/chat/set_temperature.py`.
"""

from agno.agent import Agent, RunOutput  # noqa
from agno.models.ollama import Ollama

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

agent = Agent(model=Ollama(id="llama3.2", options={"temperature": 0.5}), markdown=True)

# Get the response in a variable
# run: RunOutput = agent.run("Share a 2 sentence horror story")
# print(run.content)

# Print the response in the terminal
agent.print_response("Share a 2 sentence horror story")

# ---------------------------------------------------------------------------
# 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 ollama

Select the local Ollama server

In the shell used for the pull commands and Python example, clear a previous cloud key and point native clients and embeddings at your local server:

unset OLLAMA_API_KEY
export OLLAMA_HOST="http://localhost:11434"

Without this reset, OLLAMA_API_KEY makes Agno's default Ollama model route to https://ollama.com even when OLLAMA_HOST points locally. Keep a local Ollama server running for the following steps.

Prepare Ollama

Install and start Ollama, then pull the model used by this example:

ollama pull llama3.2

Run the example

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

python set_temperature.py

Full source: cookbook/90_models/ollama/chat/set_temperature.py