# Why Spotify Is Not Using Bayesian A/B Testing

DevFeed: [Why Spotify Is Not Using Bayesian A/B Testing](<https://devfeed.tech/articles/why-spotify-is-not-using-bayesian-a-b-testing-156.md>)

Original publisher: [Read original article](<https://engineering.atspotify.com/2026/9/why-spotify-is-not-using-bayesian-a-b-testing/>)

Author: Spotify Engineering

Published: 2026-09-08T13:18:44Z

Content type: article

Language: en

Sources: [Spotify Engineering](<https://devfeed.tech/sources/spotify-engineering.md>), [Spotify Engineering Blog](<https://devfeed.tech/sources/spotify-engineering-blog.md>)

Topics: [Data Science](<https://devfeed.tech/topics/data-science.md>), [Tooling](<https://devfeed.tech/topics/tooling.md>)

Tags: [a-b-testing](<https://devfeed.tech/tags/a-b-testing.md>), [data](<https://devfeed.tech/tags/data.md>), [data-science](<https://devfeed.tech/tags/data-science.md>), [experimentation](<https://devfeed.tech/tags/experimentation.md>), [inference](<https://devfeed.tech/tags/inference.md>), [statistics](<https://devfeed.tech/tags/statistics.md>), [testing](<https://devfeed.tech/tags/testing.md>), [tooling](<https://devfeed.tech/tags/tooling.md>)

## AI overview

Spotify argues that Bayesian A/B testing can be oversimplified and that its claimed advantages require careful configuration. The article compares Bayesian and frequentist approaches and explains why Spotify does not currently need Bayesian inference alongside its frequentist tooling.

## Source excerpt

Clearing the confusion about what Bayesian A/B testing is. The post Why Spotify Is Not Using Bayesian A/B Testing appeared first on Spotify Engineering.