![Bird Journeys update: A/B testing for message optimization](https://framerusercontent.com/images/kbmlODthj6n5u2tlfogA4SdfYo.png)

Our latest update introduces A/B testing capabilities within Journeys, enabling you to test message variations and automatically deliver the best-performing content to your audience.

The system uses AI-powered optimization to shift traffic toward winning variations in real time.

[Read the full A/B testing article](https://docs.bird.com/applications/journeys/journeys/concepts/a-b-testing).

## New features

- Multiple message variations: Create up to 8 variations (A, B, C, etc.) within a Send Message step to test different subject lines, content, or CTAs
- AI-powered optimization: Automatically shifts traffic to better-performing variations in real time based on your chosen winning metric
- Customizable winning metrics: Choose from open rate, click rate, or conversion rate as your winning metric, with automatic winner determination when statistical significance is reached
- Manual controls: End tests early, manually select a winner, or set custom time duration limits (default: 365 days)
- Detailed reporting: View performance metrics, traffic distribution changes over time, and winner determination in the A/B Test tab on the Journey Report page