“we built a custom GPT where we've analyzed what's all the top performing meta and Google copy and what's all our bottom performing meta and Google copy so we normally take what's our like brand X post and then we pass it through this custom GPT which will then iterate on it into like the high performing meta and Google copy”

Build a custom GPT trained on your best and worst ad copy

The ElevenLabs growth team built an internal GPT trained on their historic ad performance data — best and worst copy tagged. A launch post enters the GPT and exits as high-performing ad variants. The system makes institutional knowledge about what converts explicit and reusable, instead of locked in one person's head. Any team running paid ads can build this for a few hours of prompt engineering.