I've spent the last few quarters testing both ChatGPT and Claude for native ad funnels. Most people I know swear by Claude for advertorial copy and landing pages, but I've been running parallel tests with GPT-4.
What I'm really trying to understand is whether GPT can match the conversational flow of native advertorials - those long-form pieces that need to feel natural, not salesy. Compliance has been a pain with both tools; sometimes GPT triggers safety filters on perfectly harmless phrases, while Claude can be more flexible but less consistent with brand voice.
Tone matching is where it gets interesting. Claude seems to have a knack for the 'friendly expert' voice that converts well, but with the right prompt engineering, GPT can get close. I've been using a prompt that frames the client as a trusted advisor, and the output quality improved significantly.
Would appreciate hearing from others who've run A/B tests on conversions - my sample sizes are still small, but the early data suggests Claude edges ahead on click-through, while GPT holds its own on page engagement.
