ChatGPT SearchAug 14, 2026
Marketing Hub A/B testing lets you test different subject lines and automatically send the winning version to the remainder of the audience.
hubspot.com/products/marketing/ab-testing
AI named Marketing Hub A/B testing in August 2026.
Question: We use a marketing automation tool. Who offers an AI subject line generator that A/B tests within this tool?
ChatGPT SearchAug 14, 2026
Marketing Hub A/B testing lets you test different subject lines and automatically send the winning version to the remainder of the audience.
Brand page for hubspot-com-40