vllm/examples/pooling/embed/openai_embedding_client.py

# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
"""Example Python client for embedding API using vLLM API server
NOTE:
    start a supported embeddings model server with `vllm serve`, e.g.
    vllm serve intfloat/e5-small
"""

from openai import OpenAI

# Modify OpenAI's API key and API base to use vLLM's API server.
openai_api_key = "EMPTY"
openai_api_base = "http://localhost:8000/v1"


def main():
    client = OpenAI(
        # defaults to os.environ.get("OPENAI_API_KEY")
        api_key=openai_api_key,
        base_url=openai_api_base,
    )

    models = client.models.list()
    model = models.data[0].id

    responses = client.embeddings.create(
        # ruff: noqa: E501
        input=[
            "Hello my name is",
            "The best thing about vLLM is that it supports many different models",
        ],
        model=model,
    )

    for data in responses.data:
        print(data.embedding)  # List of float of len 4096


if __name__ == "__main__":
    main()