What is MAB and How Does It Work?
MAB stands for Multi-Armed Bandit, a testing method that dynamically adjusts traffic to higher-performing variants in real time. Instead of splitting traffic evenly across all variants, MAB shifts more traffic to those showing stronger early results.
Availability
Section titled “Availability”JustAI supports MAB-style testing, but it is not enabled by default. If you’d like to use this optimization method, contact us and we can turn it on for you. MAB is most effective in high-volume campaigns where early performance signals can reliably guide traffic allocation.
How It Works
Section titled “How It Works”Our system will use a MAB-like approach for variants that reach the minimum threshold for performance evaluation (typically 1,000 sends) and:
- Reduce traffic to underperforming variants
- Increase traffic to top performers
- Archive weak variants automatically (if that setting is enabled)
This helps optimize performance continuously, allowing you to maximize engagement while still learning what works.