vLLM Basic

basic.py

"""
Vllm Basic
==========

Cookbook example for `vllm/basic.py`.
"""

import asyncio

from agno.agent import Agent
from agno.models.vllm import VLLM

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

agent = Agent(
    model=VLLM(id="Qwen/Qwen2.5-7B-Instruct", top_k=20, enable_thinking=False),
    markdown=True,
)

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    # --- Sync ---
    agent.print_response("Share a 2 sentence horror story")

    # --- Sync + Streaming ---
    agent.print_response("Share a 2 sentence horror story", stream=True)

    # --- Async ---
    asyncio.run(agent.aprint_response("Share a 2 sentence horror story"))

    # --- Async + Streaming ---
    asyncio.run(agent.aprint_response("Share a 2 sentence horror story", stream=True))

Run the Example

Set up your virtual environment

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

uv venv --python 3.12
.venv\Scripts\activate

Install dependencies

uv pip install -U agno openai

Export your vLLM API key

export VLLM_API_KEY="your_vllm_api_key_here"

$Env:VLLM_API_KEY="your_vllm_api_key_here"

Install vLLM

Install vLLM in the environment that will serve the model:

uv pip install -U vllm

Start vLLM

Serve the model used by this example:

vllm serve Qwen/Qwen2.5-7B-Instruct

Run the example

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

python basic.py

Full source: cookbook/90_models/vllm/basic.py

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