---
title: "How does AI determine optimal A/B test duration?"
url: https://fibr.ai/faq/how-does-ai-determine-optimal-a-b-test-duration
description: "AI tracks A/B tests in real-time and stops them at the right moment, saving time and ensuring accurate, trusted results."
last_updated: 2026-05-05T11:50:04.198215+00:00
---
AI determines the optimal A/B test duration by continuously monitoring data and checking when the test has reached statistically significant results. Unlike traditional methods that might run tests for a set time, AI looks for patterns and stops the test once it has enough information. This helps prevent tests from running too long and wasting resources, while also ensuring you don’t cut the test short before reaching reliable results.