I sat down with James, the Boring Marketer, to stress-test Claude 4.5 Opus against Gemini 3 Pro for real-world coding and design work. Together we live-build and compare landing pages and clickable prototypes for an “EstateClear” probate-family dashboard, then zoom out into conversion copywriting frameworks, “elevated direct response” brand voice, and ad creative workflows. The episode is a practical walkthrough of how non-technical builders can go from idea → landing page → prototype → ads using modern AI tools without vibe-coded, low-converting sites. Timestamps 00:00 – Intro 02:00 – Startup Idea: EstateClear 03:17 – Claude Opus 4.5 04:47 – Gemini 3.0 Pro 09:02 – Reviewing Opus’ landing page 11:16 – Reviewing Gemini’s version 12:17 – Comparing the two 17:29 – Reprompting Opus 4.5 and Gemini 19:02 – Google’s vertically integrated stack (AI Studio, Anti-Gravity, TPUs, Workspace) 21:50 – Nano Banana Pro and ad creative experiments 27:35 – Opus 4.5 builds a clickable EstateClear prototype 31:38 – Gemini’s prototype and comparing product depth 36:40 – Anti-Gravity + Nano Banana workflow for mockups and code 44:41 – Claude Skills Workflow and Best Practices 56:41 – Final Thoughts Key Points Claude 4.5 Opus can act like a senior engineer for non-technical builders when paired with a tight skill and tools setup. Conversion wins come more from “elevated direct response” copy and clear page architecture than from fancy visuals alone. Claude’s front-end design skill meaningfully reduces “AI-looking” gradients and vibe-coded layouts, producing cleaner, production-grade UIs. Live tests show Opus 4.5 generates more refined layouts and deeper product thinking, while Gemini often injects clever AI product features. Google’s integration of Anti-Gravity, Nano Banana, and AI Studio points to a powerful end-to-end environment for shipping and promoting products. The #1 tool to find startup ideas/trends - https://www.ideabrowser.com LCA helps Fortune 500s and fast-growing startups build their future - from Warner Music to Fortnite to Dropbox. We turn 'what if' into reality with AI, apps, and next-gen products https://latecheckout.agency/ The Vibe Marketer - Resources for people into vibe marketing/marketing with AI: thevibemarketer.com Startup Empire - get your free builders toolkit to build cashflowing business - https://startup-ideas-pod.link/startup-empire-toolkit Become a member - https://startup-ideas-pod.link/startup-empire FIND ME ON SOCIAL X/Twitter: https://twitter.com/gregisenberg Instagram: https://instagram.com/gregisenberg/ LinkedIn: https://www.linkedin.com/in/gisenberg/ FIND JAMES ON SOCIAL X/Twitter: https://x.com/boringmarketer LinkedIn: https://www.linkedin.com/in/jadickerson/