Can Public Make You a Better Investor?

Built This Week

Episode 8: Can Public Make You a Better Investor?

This week, Jordan Metzner and Sam Nadler go deep on Public.com, the modern investing platform opening its trading infrastructure to developers. They demo a new tool built live on Public’s API, explore the real potential of programmable investing, and sit down with Emily Kurtz (Head of Product at Public) and Jake Trefethen (Director of AI) to unpack what’s coming next. Plus, in the news: Shopify now wants PMs who code, GPT-5 Pro hints at research-grade intelligence, and OpenAI’s model picker is back, and messier than ever.

—
Show Notes:
(0:00) Intro + guests from Public
(1:30) What is Public.com and how does the API work?
(3:30) Demo: Jordan’s trading bot built on Public’s API
(13:00) Comparing LLMs for financial reasoning
(17:30) Public’s broader vision + AI research features
(20:30) Generated assets and AI-assisted portfolio tools
(22:55) GPT-5 Pro release: early impressions
(24:30) The return of model picker + emotional attachment to AI UX
(26:30) Shopify now requires PMs to vibe-code
(29:00) What “vibe-coding” means and where it fits in product hiring
(31:00) Wrap-up and thanks to the Public.com team

—
Platforms / Tools Mentioned:
• Public – https://www.public.com
• Ryz Labs – https://www.ryzlabs.com
• ChatGPT – https://chat.openai.com
• Shopify – https://www.shopify.com

—
Listen on Your Favorite Platform:
• Spotify – https://open.spotify.com/show/0ahiOCzYxhhkEgbtz9kkeC
• Apple Podcasts – https://podcasts.apple.com/us/podcast/built-this-week/id1823270832
• Amazon Music – https://music.amazon.com/podcasts/1017d387-fbb0-4bbf-9488-817cee38e058
• Deezer – https://www.deezer.com/us/show/1001995001

—
Follow the Hosts:

Jordan Metzner
• LinkedIn – https://www.linkedin.com/in/jordanmetzner/
• Instagram – https://www.instagram.com/mrjmetz/
• X – https://x.com/mrjmetz?lang=bn

Sam Nadler
• LinkedIn – https://www.linkedin.com/in/sam-nadler-1881b75/
• X – http://x.com/Gravino05