OpenInference is a set of conventions and plugins that is complimentary to OpenTelemetry to enable tracing of AI applications. OpenInference is natively supported by arize-phoenix, but can be used with any OpenTelemetry-compatible backend as well.

Specification

The OpenInference specification is edited in markdown files found in the spec directory. It's designed to provide insight into the invocation of LLMs and the surrounding application context such as retrieval from vector stores and the usage of external tools such as search engines or APIs. The specification is transport and file-format agnostic, and is intended to be used in conjunction with other specifications such as JSON, ProtoBuf, and DataFrames.

Instrumentation

OpenInference provides a set of instrumentations for popular machine learning SDKs and frameworks in a variety of languages.

Python

Libraries

Package	Description	Version
openinference-semantic-conventions	Semantic conventions for tracing of LLM Apps.
openinference-instrumentation-openai	OpenInference Instrumentation for OpenAI SDK.
openinference-instrumentation-llama-index	OpenInference Instrumentation for LlamaIndex.
openinference-instrumentation-dspy	OpenInference Instrumentation for DSPy.
openinference-instrumentation-bedrock	OpenInference Instrumentation for AWS Bedrock.
openinference-instrumentation-langchain	OpenInference Instrumentation for LangChain.
openinference-instrumentation-mistralai	OpenInference Instrumentation for MistralAI.

Examples

Name	Description	Complexity Level
OpenAI SDK	OpenAI Python SDK, including chat completions and embeddings	Beginner
MistralAI SDK	MistraAI Python SDK	Beginner
LlamaIndex	LlamaIndex query engines	Beginner
DSPy	DSPy primitives and custom RAG modules	Beginner
Boto3 Bedrock Client	Boto3 Bedrock client	Beginner
LangChain	LangChain primitives and simple chains	Beginner
LlamaIndex + Next.js Chatbot	A fully functional chatbot using Next.js and a LlamaIndex FastAPI backend	Intermediate
LangServe	A LangChain application deployed with LangServe using custom metadata on a per-request basis	Intermediate
DSPy	A DSPy RAG application using FastAPI, Weaviate, and Cohere	Intermediate

JavaScript

Libraries

Package	Description	Version
@arizeai/openinference-semantic-conventions	Semantic conventions for tracing of LLM Apps.
@arizeai/openinference-instrumentation-openai	OpenInference Instrumentation for OpenAI SDK.
@arizeai/openinference-instrumentation/langchain	OpenInference Instrumentation for LangChain.js.

Examples

Name	Description	Complexity Level
OpenAI SDK	OpenAI Node.js client	Beginner
LlamaIndex Express App	A fully functional LlamaIndex chatbot with a Next.js frontend and a LlamaIndex Express backend, instrumented using openinference-instrumentation-openai	Intermediate
LangChain OpenAI	A simple script to call OpenAI via LangChain, instrumented using openinference-instrumentation-langchain	Beginner
LangChain RAG Express App	A fully functional LangChain chatbot that uses RAG to answer user questions. It has a Next.js frontend and a LangChain Express backend, instrumented using openinference-instrumentation-langchain	Intermediate

Supported Destinations

OpenInference supports the following destinations as span collectors.

• ✅ Arize-Phoenix
• ✅ Arize
• ✅ Any OTEL-compatible collector

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