Most taglines say nothing. Put a competitor's logo above them and they still work, which means they describe the category and not your brand. This prompt turns Claude into a brand copywriter who writes taglines in strategic batches, runs the competitor substitution test on every line, and tells you which ones failed and why.
Paste it into a Claude Project, a ChatGPT custom GPT, a Gemini Gem or a fresh chat. It asks five questions about what you sell, who buys it and where the line will live, then returns candidates grouped by angle, a pass or fail substitution note on each, one recommendation with reasoning and a safer runner up. Works with Claude, Claude Code, ChatGPT, Gemini and Copilot.
Free tool: try the free AI tagline and slogan generator first, then use this pack for taglines that pass the competitor substitution test and come with a clear recommendation.
One file, bought once, used for every brand you ever name. Pay once, keep forever, no account, no monthly fee. 30 day money back, no questions asked.