Error code: 404 - {'error': {'code': '404', 'message': 'Resource not found'}} encountered when running langchain program with Azure AI

Question

I encountered below NotFoundError when running langchain tutorial program (code: model.invoke(messages). Please help and advise, thanks.

NotFoundError: Error code: 404 - {'error': {'code': '404', 'message': 'Resource not found'}

LangChain tutorial program:

import os
os.environ["AZURE_OPENAI_API_KEY"] = "d957dxxxxxxxxxxxxxxxxxxxxxxxxx18438ba99f4b7"
os.environ["AZURE_OPENAI_ENDPOINT"] = "https://xxxxxxxxxx.cognitiveservices.azure.com/"
os.environ["AZURE_OPENAI_DEPLOYMENT"] = "Microsoft.CognitiveServicesAllInOne-20240775798778"
os.environ["AZURE_OPENAI_API_VERSION"] = "2021-04-30"

from langchain_openai import AzureChatOpenAI

model = AzureChatOpenAI(
    azure_endpoint=os.environ["AZURE_OPENAI_ENDPOINT"],
    azure_deployment=os.environ["AZURE_OPENAI_DEPLOYMENT"],
    openai_api_version=os.environ["AZURE_OPENAI_API_VERSION"]
)

from langchain_core.messages import HumanMessage, SystemMessage
messages = [
    SystemMessage(content="Translate the following from English into Italian"),
    HumanMessage(content="hi!"),
]
model.invoke(messages)

Answer 1

Hi @Peter,

Thank you for reaching out to Microsoft Q&A forum!

I tried to repro the issue with the given code below and able to run the program:

import os
from langchain_openai import AzureChatOpenAI
from langchain_core.messages import HumanMessage, SystemMessage

# Set your Azure OpenAI credentials in environment variables
os.environ["AZURE_OPENAI_API_KEY"] = "<KEY>"
os.environ["AZURE_OPENAI_ENDPOINT"] = "https://<ENDPOINT>.openai.azure.com/" # Ensure this is correct
os.environ["AZURE_OPENAI_DEPLOYMENT"] = "gpt-4o-mini" # Use your actual deployment name
os.environ["AZURE_OPENAI_API_VERSION"] = "2023-05-15" # Check if this version is supported

# Initialize the AzureChatOpenAI model
model = AzureChatOpenAI(
    azure_endpoint=os.environ["AZURE_OPENAI_ENDPOINT"],
    azure_deployment=os.environ["AZURE_OPENAI_DEPLOYMENT"],
    openai_api_version=os.environ["AZURE_OPENAI_API_VERSION"]
)

# Create system and human messages
messages = [
    SystemMessage(content="Translate the following from English into Italian"),
    HumanMessage(content="hi!")
]
response = model.invoke(messages)

# Print the translation
print("Translation:", response)

Output:

Hope this helps. Do let us know if you any further queries.

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