Oracle Cloud Infrastructure Generative AI¶

Oracle Cloud Infrastructure (OCI) Generative AI is a fully managed service that provides a set of state-of-the-art, customizable large language models (LLMs) that cover a wide range of use cases, and which is available through a single API. Using the OCI Generative AI service you can access ready-to-use pretrained models, or create and host your own fine-tuned custom models based on your own data on dedicated AI clusters. Detailed documentation of the service and API is available here and here.

This notebook explains how to use OCI's Genrative AI models with LlamaIndex.

Setup¶

If you're opening this Notebook on colab, you will probably need to install LlamaIndex 🦙.

In [ ]:

%pip install llama-index-llms-oci-genai

%pip install llama-index-llms-oci-genai

In [ ]:

!pip install llama-index

!pip install llama-index

You will also need to install the OCI sdk

In [ ]:

!pip install -U oci

!pip install -U oci

Basic Usage¶

Using LLMs offered by OCI Generative AI with LlamaIndex only requires you to initialize the OCIGenAI interface with your OCI endpoint, model ID, OCID, and authentication method.

Call complete with a prompt¶

In [ ]:

from llama_index.llms.oci_genai import OCIGenAI

llm = OCIGenAI(
    model="MY_MODEL",
    service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com",
    compartment_id="MY_OCID",
)

resp = llm.complete("Paul Graham is ")
print(resp)

from llama_index.llms.oci_genai import OCIGenAI llm = OCIGenAI( model="MY_MODEL", service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com", compartment_id="MY_OCID", ) resp = llm.complete("Paul Graham is ") print(resp)

Call chat with a list of messages¶

In [ ]:

from llama_index.llms.oci_genai import OCIGenAI
from llama_index.core.llms import ChatMessage

messages = [
    ChatMessage(
        role="system", content="You are a pirate with a colorful personality"
    ),
    ChatMessage(role="user", content="Tell me a story"),
]

llm = OCIGenAI(
    model="MY_MODEL",
    service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com",
    compartment_id="MY_OCID",
)

resp = llm.chat(messages)
print(resp)

from llama_index.llms.oci_genai import OCIGenAI from llama_index.core.llms import ChatMessage messages = [ ChatMessage( role="system", content="You are a pirate with a colorful personality" ), ChatMessage(role="user", content="Tell me a story"), ] llm = OCIGenAI( model="MY_MODEL", service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com", compartment_id="MY_OCID", ) resp = llm.chat(messages) print(resp)

Streaming¶

Using stream_complete endpoint

In [ ]:

from llama_index.llms.oci_genai import OCIGenAI

llm = OCIGenAI(
    model="MY_MODEL",
    service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com",
    compartment_id="MY_OCID",
)

resp = llm.stream_complete("Paul Graham is ")
for r in resp:
    print(r.delta, end="")

from llama_index.llms.oci_genai import OCIGenAI llm = OCIGenAI( model="MY_MODEL", service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com", compartment_id="MY_OCID", ) resp = llm.stream_complete("Paul Graham is ") for r in resp: print(r.delta, end="")

Using stream_chat endpoint

In [ ]:

from llama_index.llms.oci_genai import OCIGenAI
from llama_index.core.llms import ChatMessage

messages = [
    ChatMessage(
        role="system", content="You are a pirate with a colorful personality"
    ),
    ChatMessage(role="user", content="Tell me a story"),
]

llm = OCIGenAI(
    model="MY_MODEL",
    service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com",
    compartment_id="MY_OCID",
)

resp = llm.stream_chat(messages)
for r in resp:
    print(r.delta, end="")

from llama_index.llms.oci_genai import OCIGenAI from llama_index.core.llms import ChatMessage messages = [ ChatMessage( role="system", content="You are a pirate with a colorful personality" ), ChatMessage(role="user", content="Tell me a story"), ] llm = OCIGenAI( model="MY_MODEL", service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com", compartment_id="MY_OCID", ) resp = llm.stream_chat(messages) for r in resp: print(r.delta, end="")

Async¶

Native async currently not supported. Async calls will revert to synchronous

In [ ]:

from llama_index.llms.oci_genai import OCIGenAI
from llama_index.core.llms import ChatMessage

messages = [
    ChatMessage(
        role="system", content="You are a pirate with a colorful personality"
    ),
    ChatMessage(role="user", content="Tell me a story"),
]

llm = OCIGenAI(
    model="MY_MODEL",
    service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com",
    compartment_id="MY_OCID",
)

resp = llm.achat(messages)
print(resp)

resp = llm.astream_chat(messages)
for r in resp:
    print(r.delta, end="")

from llama_index.llms.oci_genai import OCIGenAI from llama_index.core.llms import ChatMessage messages = [ ChatMessage( role="system", content="You are a pirate with a colorful personality" ), ChatMessage(role="user", content="Tell me a story"), ] llm = OCIGenAI( model="MY_MODEL", service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com", compartment_id="MY_OCID", ) resp = llm.achat(messages) print(resp) resp = llm.astream_chat(messages) for r in resp: print(r.delta, end="")

Configure Model¶

In [ ]:

from llama_index.llms.oci_genai import OCIGenAI

llm = OCIGenAI(
    model="cohere.command",
    service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com",
    compartment_id="MY_OCID",
)

resp = llm.complete("Paul Graham is ")
print(resp)

from llama_index.llms.oci_genai import OCIGenAI llm = OCIGenAI( model="cohere.command", service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com", compartment_id="MY_OCID", ) resp = llm.complete("Paul Graham is ") print(resp)

Authentication¶

The authentication methods supported for LlamaIndex are equivalent to those used with other OCI services and follow the standard SDK authentication methods, specifically API Key, session token, instance principal, and resource principal.

API key is the default authentication method. The following example demonstrates how to use a different authentication method (session token)

In [ ]:

from llama_index.llms.oci_genai import OCIGenAI

llm = OCIGenAI(
    model="MY_MODEL",
    service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com",
    compartment_id="MY_OCID",
    auth_type="SECURITY_TOKEN",
    auth_profile="MY_PROFILE",  # replace with your profile name
)

resp = llm.complete("Paul Graham is ")
print(resp)

from llama_index.llms.oci_genai import OCIGenAI llm = OCIGenAI( model="MY_MODEL", service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com", compartment_id="MY_OCID", auth_type="SECURITY_TOKEN", auth_profile="MY_PROFILE", # replace with your profile name ) resp = llm.complete("Paul Graham is ") print(resp)

Dedicated AI Cluster¶

To access models hosted in a dedicated AI cluster create an endpoint whose assigned OCID (currently prefixed by ‘ocid1.generativeaiendpoint.oc1.us-chicago-1’) is used as your model ID.

When accessing models hosted in a dedicated AI cluster you will need to initialize the OCIGenAI interface with two extra required params ("provider" and "context_size").

In [ ]:

from llama_index.llms.oci_genai import OCIGenAI
from llama_index.core.llms import ChatMessage

llm = OCIGenAI(
    model="ocid1.generativeaiendpoint.oc1.us-chicago-1....",
    service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com",
    compartment_id="DEDICATED_COMPARTMENT_OCID",
    auth_profile="MY_PROFILE",  # replace with your profile name,
    provider="MODEL_PROVIDER",  # e.g., "cohere" or "meta"
    context_size="MODEL_CONTEXT_SIZE",  # e.g., 128000
)

messages = [
    ChatMessage(
        role="system", content="You are a pirate with a colorful personality"
    ),
    ChatMessage(role="user", content="Tell me a story"),
]

resp = llm.chat(messages)
print(resp)

from llama_index.llms.oci_genai import OCIGenAI from llama_index.core.llms import ChatMessage llm = OCIGenAI( model="ocid1.generativeaiendpoint.oc1.us-chicago-1....", service_endpoint="https://inference.generativeai.us-chicago-1.oci.oraclecloud.com", compartment_id="DEDICATED_COMPARTMENT_OCID", auth_profile="MY_PROFILE", # replace with your profile name, provider="MODEL_PROVIDER", # e.g., "cohere" or "meta" context_size="MODEL_CONTEXT_SIZE", # e.g., 128000 ) messages = [ ChatMessage( role="system", content="You are a pirate with a colorful personality" ), ChatMessage(role="user", content="Tell me a story"), ] resp = llm.chat(messages) print(resp)