Using a Project

Using projects is required to call the OCI OpenAI-compatible API.

In the Projects list page, select project that you want to use. If you need help finding the list page, see Listing a project.
Select the How to use tab.

If you're going to access the models using Generative AI API Key auth, then copy the code for option one.

Example code:

from openai import OpenAI

client = OpenAI(
    base_url="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com/openai/v1",
    api_key="sk-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", # replace with your Generative AI API Key
    project="ocid1.generativeaiproject.oc1.us-chicago-1.xxx"

response = client.responses.create(
    model="xai.grok-4-1-fast-reasoning",
    input="What is 2x2?"
)

print(response.output_text) # should output a string like "2 x 2 = **4**."

If you're going to access the models using IAM auth, then copy the code for option two.

Example code:

from openai import OpenAI
from oci_openai import OciSessionAuth
import httpx

client = OpenAI(
    base_url="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com/openai/v1",
    api_key="not-used",
    project="ocid1.generativeaiproject.oc1.us-chicago-1.xxx",
    http_client=httpx.Client(auth=OciSessionAuth(profile_name="DEFAULT")), # change "DEFAULT" to your profile name
)

response = client.responses.create(
    model="xai.grok-4-1-fast-reasoning",
    input="What is 2x2?"
)

print(response.output_text)

Oracle Cloud Infrastructure Documentation

Using a Project