"Unsupported data type" when calling embedding API for o3-mini

API
1

I’m trying to use the embeddings API via Azure AI Foundry. It’s returning the following error:

Traceback (most recent call last):
  File "/usr/lib/python3.10/runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/lib/python3.10/runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File ".../__main__.py", line 14, in <module>
    result = azure.embeddings.create(
  File ".../.venv/lib/python3.10/site-packages/openai/resources/embeddings.py", line 128, in create
    return self._post(
  File ".../.venv/lib/python3.10/site-packages/openai/_base_client.py", line 1239, in post
    return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
  File ".../.venv/lib/python3.10/site-packages/openai/_base_client.py", line 1034, in request
    raise self._make_status_error_from_response(err.response) from None
openai.BadRequestError: Unsupported data type

To Reproduce

from openai import AzureOpenAI

LLM_ENDPOINT = "https://xxx.openai.azure.com/openai/deployments/o3-mini/chat/completions?api-version=2025-02-01-preview"
LLM_API_VERSION = "2025-02-01-preview"
LLM_API_KEY = "..."

azure = AzureOpenAI(
    azure_endpoint=LLM_ENDPOINT,
    api_key=LLM_API_KEY,
    api_version=LLM_API_VERSION,
)

result = azure.embeddings.create(
    model="o3-mini",
    input="test",
    encoding_format="float",
)

OS

pop_os 22.04

Python version

Python v3.10

Library version

openai v1.76.2

2

I think you are using the wrong model. o3-mini is not an embedding model. The embedding models can be viewed at https://platform.openai.com/docs/guides/embeddings

text-embedding-3-small and text-embedding-3-large , our newest and most performant embedding models, are now available. They feature lower costs, higher multilingual performance, and new parameters to control the overall size.`

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