Install LLM analytics with PostHog

Last updated: Aug 25, 2025

Choose your platform below to get started with LLM analytics installation.

OpenAI
Anthropic
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OpenAI LLM analytics installation

Setting up analytics starts with installing the PostHog SDK for your language. LLM analytics works best with our Python and Node SDKs. Install the OpenAI SDK: Initialize PostHog with your project API key and host from your project settings , then pass it to our OpenAI wrapper. Note: This also works with the AsyncOpenAI client. Now, when you use the OpenAI SDK to call LLMs, PostHog automatically captures an $ai_generation event. You can enrich the event with additional data such as the…