Oracle Cloud Infrastructure (OCI) | liteLLM (original) (raw)

LiteLLM supports the following models for OCI on-demand GenAI API.

Check the OCI Models List to see if the model is available for your region.

Supported Models​

For model lifecycle, retirement dates, and recommended replacements, see OCI's on-demand model retirement page — Oracle is the authoritative source.

Chat / Text Generation​

Meta Llama Models​

xAI Grok Models​

Cohere Models​

Google Gemini Models (via OCI)​

OpenAI Open-Source Models (via OCI)​

Embedding Models​

Authentication​

LiteLLM supports two authentication methods for OCI:

Method 1: Manual Credentials​

Provide individual OCI credentials directly to LiteLLM. Follow the official Oracle tutorial to create a signing key and obtain the following parameters:

This is the default method for LiteLLM AI Gateway (LLM Proxy) access to OCI GenAI models.

Environment Variables

Instead of passing credentials in code, you can set the following environment variables — LiteLLM will read them automatically:

export OCI_REGION="us-chicago-1"
export OCI_USER="ocid1.user.oc1.."
export OCI_FINGERPRINT="xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx"
export OCI_TENANCY="ocid1.tenancy.oc1.."
export OCI_COMPARTMENT_ID="ocid1.compartment.oc1.."
# Provide either the private key content OR the path to the key file:
export OCI_KEY_FILE="/path/to/oci_api_key.pem"
# export OCI_KEY="-----BEGIN PRIVATE KEY-----\n..."

Method 2: OCI SDK Signer​

Use an OCI SDK Signer object for authentication. This method:

To use this method, install the OCI SDK:

This method is an alternative when using the LiteLLM SDK on Oracle Cloud Infrastructure (instances or Oracle Kubernetes Engine).

Usage​

Input the parameters obtained from the OCI signing key creation process into the completion function:

from litellm import completion

messages = [{"role": "user", "content": "Hey! how's it going?"}]
response = completion(
    model="oci/xai.grok-4",
    messages=messages,
    oci_region=<your_oci_region>,
    oci_user=<your_oci_user>,
    oci_fingerprint=<your_oci_fingerprint>,
    oci_tenancy=<your_oci_tenancy>,
    oci_serving_mode="ON_DEMAND",  # Optional, default is "ON_DEMAND". Other option is "DEDICATED"
    # Provide either the private key string OR the path to the key file:
    # Option 1: pass the private key as a string
    oci_key=<string_with_content_of_oci_key>,
    # Option 2: pass the private key file path
    # oci_key_file="<path/to/oci_key.pem>",
    oci_compartment_id=<oci_compartment_id>,
)
print(response)

LiteLLM Proxy Usage​

Here's how to call OCI GenAI through the LiteLLM Proxy Server.

1. Setup config.yaml​

model_list:
  - model_name: oci-grok-4
    litellm_params:
      model: oci/xai.grok-4
      oci_region: os.environ/OCI_REGION
      oci_user: os.environ/OCI_USER
      oci_fingerprint: os.environ/OCI_FINGERPRINT
      oci_tenancy: os.environ/OCI_TENANCY
      oci_key_file: os.environ/OCI_KEY_FILE
      oci_compartment_id: os.environ/OCI_COMPARTMENT_ID

  - model_name: oci-cohere-command
    litellm_params:
      model: oci/cohere.command-latest
      oci_region: os.environ/OCI_REGION
      oci_user: os.environ/OCI_USER
      oci_fingerprint: os.environ/OCI_FINGERPRINT
      oci_tenancy: os.environ/OCI_TENANCY
      oci_key_file: os.environ/OCI_KEY_FILE
      oci_compartment_id: os.environ/OCI_COMPARTMENT_ID

All possible auth params:

oci_region: Optional[str],
oci_user: Optional[str],
oci_fingerprint: Optional[str],
oci_tenancy: Optional[str],
oci_key: Optional[str],          # private key content as string
oci_key_file: Optional[str],     # path to .pem file
oci_compartment_id: Optional[str],
oci_serving_mode: Optional[str], # "ON_DEMAND" (default) or "DEDICATED"
oci_endpoint_id: Optional[str],  # only used with DEDICATED

2. Start the proxy​

litellm --config /path/to/config.yaml

3. Test it​

curl --location 'http://0.0.0.0:4000/chat/completions' \
--header 'Content-Type: application/json' \
--data '{
  "model": "oci-grok-4",
  "messages": [
    {"role": "user", "content": "what llm are you"}
  ]
}'

Usage - Streaming​

Just set stream=True when calling completion.

from litellm import completion

messages = [{"role": "user", "content": "Hey! how's it going?"}]
response = completion(
    model="oci/xai.grok-4",
    messages=messages,
    stream=True,
    oci_region=<your_oci_region>,
    oci_user=<your_oci_user>,
    oci_fingerprint=<your_oci_fingerprint>,
    oci_tenancy=<your_oci_tenancy>,
    oci_serving_mode="ON_DEMAND",  # Optional, default is "ON_DEMAND". Other option is "DEDICATED"
    # Provide either the private key string OR the path to the key file:
    # Option 1: pass the private key as a string
    oci_key=<string_with_content_of_oci_key>,
    # Option 2: pass the private key file path
    # oci_key_file="<path/to/oci_key.pem>",
    oci_compartment_id=<oci_compartment_id>,
)
for chunk in response:
    print(chunk["choices"][0]["delta"]["content"])  # same as openai format

Usage Examples by Model Type​

Using Cohere Models​

from litellm import completion

messages = [{"role": "user", "content": "Explain quantum computing"}]
response = completion(
    model="oci/cohere.command-latest",
    messages=messages,
    oci_region="us-chicago-1",
    oci_user=<your_oci_user>,
    oci_fingerprint=<your_oci_fingerprint>,
    oci_tenancy=<your_oci_tenancy>,
    oci_key=<string_with_content_of_oci_key>,
    oci_compartment_id=<oci_compartment_id>,
)
print(response)

Using Dedicated Endpoints​

OCI supports dedicated endpoints for hosting models. Use the oci_serving_mode="DEDICATED" parameter along with oci_endpoint_id to specify the endpoint ID.

from litellm import completion

messages = [{"role": "user", "content": "Hey! how's it going?"}]
response = completion(
    model="oci/xai.grok-4",  # Must match the model type hosted on the endpoint
    messages=messages,
    oci_region=<your_oci_region>,
    oci_user=<your_oci_user>,
    oci_fingerprint=<your_oci_fingerprint>,
    oci_tenancy=<your_oci_tenancy>,
    oci_serving_mode="DEDICATED",
    oci_endpoint_id="ocid1.generativeaiendpoint.oc1...",  # Your dedicated endpoint OCID
    oci_key=<string_with_content_of_oci_key>,
    oci_compartment_id=<oci_compartment_id>,
)
print(response)

Important: When using oci_serving_mode="DEDICATED":

Example with Cohere Dedicated Endpoint:

# For a dedicated endpoint hosting a Cohere model
response = completion(
    model="oci/cohere.command-latest",  # Use Cohere model name to get Cohere API format
    messages=messages,
    oci_region="us-chicago-1",
    oci_user=<your_oci_user>,
    oci_fingerprint=<your_oci_fingerprint>,
    oci_tenancy=<your_oci_tenancy>,
    oci_serving_mode="DEDICATED",
    oci_endpoint_id="ocid1.generativeaiendpoint.oc1...",  # Your Cohere endpoint OCID
    oci_key=<string_with_content_of_oci_key>,
    oci_compartment_id=<oci_compartment_id>,
)

OCI GenAI supports OpenAI-compatible function calling. LiteLLM normalizes the request and response shape so the same code that targets OpenAI works with OCI Cohere and Generic (xAI Grok, Meta Llama, Google Gemini) models.

from litellm import completion

tools = [
    {
        "type": "function",
        "function": {
            "name": "get_current_weather",
            "description": "Get the current weather in a given location",
            "parameters": {
                "type": "object",
                "properties": {
                    "location": {
                        "type": "string",
                        "description": "The city and state, e.g. San Francisco, CA",
                    },
                    "unit": {"type": "string", "enum": ["celsius", "fahrenheit"]},
                },
                "required": ["location"],
            },
        },
    }
]

response = completion(
    model="oci/xai.grok-4",
    messages=[{"role": "user", "content": "What's the weather in Boston today?"}],
    tools=tools,
    tool_choice="auto",
    oci_region="us-chicago-1",
    oci_user="<your_oci_user>",
    oci_fingerprint="<your_oci_fingerprint>",
    oci_tenancy="<your_oci_tenancy>",
    oci_key_file="<path/to/oci_key.pem>",
    oci_compartment_id="<oci_compartment_id>",
)

# Inspect the tool call
print(response.choices[0].message.tool_calls)

Tool calling works with both Cohere (cohere.command-*) and Generic (xai.grok-*, meta.llama-*, google.gemini-*) model families — LiteLLM adapts the OpenAI tool schema to each vendor's native format internally.

Usage - Vision / Multimodal​

OCI GenAI exposes vision-capable models that accept images alongside text. Pass images using the standard OpenAI image_url content block.

from litellm import completion

response = completion(
    model="oci/meta.llama-4-maverick-17b-128e-instruct-fp8",
    messages=[
        {
            "role": "user",
            "content": [
                {"type": "text", "text": "What is in this image?"},
                {
                    "type": "image_url",
                    "image_url": {
                        "url": "https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg"
                    },
                },
            ],
        }
    ],
    oci_region="us-chicago-1",
    oci_user="<your_oci_user>",
    oci_fingerprint="<your_oci_fingerprint>",
    oci_tenancy="<your_oci_tenancy>",
    oci_key_file="<path/to/oci_key.pem>",
    oci_compartment_id="<oci_compartment_id>",
)
print(response.choices[0].message.content)

Vision-capable models on OCI include:

Both URL and base64-encoded data URIs are supported.

Usage - Reasoning / Thinking​

OCI Generic-vendor models (xAI Grok reasoning variants, Google Gemini, etc.) support a reasoning step. LiteLLM exposes this via the OpenAI-compatible reasoning_effort parameter — accepted values are "low", "medium", "high", and "disable" (mapped to OCI's NONE).

Returned reasoning tokens are surfaced on usage.completion_tokens_details.reasoning_tokens, matching the OpenAI shape.

from litellm import completion

response = completion(
    model="oci/xai.grok-3-mini",
    messages=[{"role": "user", "content": "If 3x + 7 = 22, what is x? Show your reasoning."}],
    reasoning_effort="high",  # "low" | "medium" | "high" | "disable"
    oci_region="us-chicago-1",
    oci_user="<your_oci_user>",
    oci_fingerprint="<your_oci_fingerprint>",
    oci_tenancy="<your_oci_tenancy>",
    oci_key_file="<path/to/oci_key.pem>",
    oci_compartment_id="<oci_compartment_id>",
)

print(response.choices[0].message.content)
print("Reasoning tokens:", response.usage.completion_tokens_details.reasoning_tokens)

note

reasoning_effort is only honored on Generic-vendor reasoning models (e.g., xai.grok-3-mini, xai.grok-4, google.gemini-2.5-pro). It is silently ignored for OCI Cohere models, which are not reasoning models.

Optional Parameters​

Parameter Type Default Environment Variable Description
oci_region string us-ashburn-1 OCI_REGION OCI region where the GenAI service is deployed
oci_serving_mode string ON_DEMAND – Service mode: ON_DEMAND for managed models or DEDICATED for dedicated endpoints
oci_endpoint_id string Same as model – (For DEDICATED mode) The OCID of your dedicated endpoint
oci_compartment_id string Required OCI_COMPARTMENT_ID The OCID of the OCI compartment containing your resources
oci_user string – OCI_USER (Manual auth) The OCID of the OCI user
oci_fingerprint string – OCI_FINGERPRINT (Manual auth) The fingerprint of the API signing key
oci_tenancy string – OCI_TENANCY (Manual auth) The OCID of your OCI tenancy
oci_key string – OCI_KEY (Manual auth) The private key content as a string
oci_key_file string – OCI_KEY_FILE (Manual auth) Path to the private key file
oci_signer object – – (SDK auth) OCI SDK Signer object for authentication
reasoning_effort string – – Reasoning level for Generic-vendor reasoning models: low, medium, high, disable

Embeddings​

LiteLLM supports OCI Generative AI embedding models. These models use the same authentication methods described above.

from litellm import embedding

response = embedding(
    model="oci/cohere.embed-english-v3.0",
    input=["Hello world", "Goodbye world"],
    oci_region="us-ashburn-1",
    oci_user=<your_oci_user>,
    oci_fingerprint=<your_oci_fingerprint>,
    oci_tenancy=<your_oci_tenancy>,
    oci_key=<string_with_content_of_oci_key>,
    oci_compartment_id=<oci_compartment_id>,
)
print(response)

Embedding Optional Parameters​

Parameter Type Default Description
input_type string - The type of input: search_document, search_query, classification, clustering
truncate string END Truncation strategy when input exceeds max tokens: END or START

Using Dedicated Embedding Endpoints​

response = embedding(
    model="oci/cohere.embed-english-v3.0",
    input=["Hello world"],
    oci_serving_mode="DEDICATED",
    oci_endpoint_id="ocid1.generativeaiendpoint.oc1...",
    oci_region="us-ashburn-1",
    oci_compartment_id="<oci_compartment_id>",
    # ... auth params
)