PostHog / PostHog/posthog

A/B test or Multi-armed bandit test message format + copy with MaxAI generation

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feature/messaging
Dominant language
Python
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Description

Feature request

Is your feature request related to a problem?

multiple customers have asked for the ability to run ab tests for email or soon push. customers can do this today with a workaround using the cohort step, but we should allow people to have an experiment branch which splits and rejoins based on some winning condition

Other context

OfferFit (recently acquired by Braze) describes their "AI decisioning" approach to A/B testing: https://www.offerfit.ai/content/blog-post/why-you-should-forget-about-a-b-testing

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the existing cohort step workaround described in the issue and how email delivery is currently handled. Define how an experiment branch would split and rejoin, how a winning condition is represented, and how the approach could extend to push messages and MaxAI-generated copy.

Written by the indexing model from the issue text.

Assessment

Domain
analytics
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
30/100

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