Privacy mode

To avoid storing potentially sensitive prompt and completion data, you can enable privacy mode. This excludes the $ai_input and $ai_output_choices properties from being captured.

SDK config

This can be done by setting the privacy_mode config option in the SDK like this:

from posthog import Posthog

posthog = Posthog(
    "<ph_project_api_key>",
    host="https://us.i.posthog.com",
    privacy_mode=True
)
const phClient = new PostHog(
  '<ph_project_api_key>',
  { 
    host: 'https://us.i.posthog.com',
    privacyMode: true
  }
)

Request parameter

It can also be set at the request level by setting the privacy_mode parameter to True in the request. The exact setup depends on the LLM platform you're using:

client.responses.create(
    model="gpt-4o-mini",
    input=[...],
    posthog_privacy_mode=True
)
const completion = await openai.responses.create({
    model: "gpt-4o-mini",
    input: [...],
    posthogPrivacyMode: true
});
response = client.messages.create(
    model="claude-3-opus-20240229",
    messages=[...],
    posthog_privacy_mode=True
)
response = client.models.generate_content(
    model="gemini-2.5-flash",
    contents=[...],
    posthog_privacy_mode=True
)
callback_handler = PosthogCallbackHandler(
    client,
    privacy_mode=True
)

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