Is Deepseek-R1 API accessed through openai library compatible with Langchain and Langgraph methods?

[leockl]

Looking at Deepseek-R1's API documentation (https://api-docs.deepseek.com/), based on the script below, Deepseek-R1 can been accessed through openai library:

from openai import OpenAI

client = OpenAI(api_key="<DeepSeek API Key>", base_url="https://api.deepseek.com")

response = client.chat.completions.create(
    model="deepseek-chat",
    messages=[
        {"role": "system", "content": "You are a helpful assistant"},
        {"role": "user", "content": "Hello"},
    ],
    stream=False
)

print(response.choices[0].message.content)

Does that mean Deepseek-R1 API (accessed through openai library) as shown above is compatible with Langchain and Langgraph methods (such as those in from langchain_openai import ChatOpenAI and from langgraph.prebuilt import create_react_agent)?

[PClmnt]

Curious about this as well.