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The openai SDK ships no first-party OTel: use OpenInference’s auto-instrumentation. Pick your language in the code blocks below; the choice persists across the page.

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1. Install

Already have OpenInference + an OTLP exporter wired up? Skip. No setup yet? 
pip install openai openinference-instrumentation-openai \
            opentelemetry-sdk opentelemetry-exporter-otlp-proto-http

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2. Wire OpenInference + OTLP exporter pointing at Agnost

Already have OpenInference (or any OTel TracerProvider) running? Append Agnost as an additional span processor on the existing provider: 
from opentelemetry import trace
from opentelemetry.sdk.trace.export import BatchSpanProcessor
from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter

trace.get_tracer_provider().add_span_processor(
    BatchSpanProcessor(
        OTLPSpanExporter(
            endpoint="https://otel.agnost.ai/v1/traces",
            headers={"X-Agnost-Org-ID": os.environ["AGNOST_ORG_ID"]},
        )
    )
)
No OTel yet? Full setup: 
import os
from opentelemetry import trace
from opentelemetry.sdk.trace import TracerProvider
from opentelemetry.sdk.trace.export import BatchSpanProcessor
from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
from opentelemetry.sdk.resources import Resource
from openinference.instrumentation.openai import OpenAIInstrumentor

provider = TracerProvider(resource=Resource.create({"service.name": "openai-py"}))
provider.add_span_processor(
    BatchSpanProcessor(
        OTLPSpanExporter(
            endpoint="https://otel.agnost.ai/v1/traces",
            headers={"X-Agnost-Org-ID": os.environ["AGNOST_ORG_ID"]},
        )
    )
)
trace.set_tracer_provider(provider)

OpenAIInstrumentor().instrument(tracer_provider=provider)

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3. Pass userId / sessionId per call

from openinference.instrumentation import using_attributes

with using_attributes(user_id="user-42", session_id="conv-abc123"):
    client.chat.completions.create(
        model="gpt-4o",
        messages=[{"role": "user", "content": "Hello"}],
    )
using_attributes (Python) and setUser / setSession (TS) propagate via OTel context, landing as user.id / session.id on every span the OpenAI SDK emits inside the block.

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TypeScript version compatibility

Pin matching majors: version mismatches throw does not provide an export named 'APIPromise' at import time:
openai@arizeai/openinference-instrumentation-openai
^6.7.0^4.0.0
^4.95.0 – ^5.x~2.3.1

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References