6 guides
Codex
Plain-English guides on codex for non-technical founders building with AI tools.
founder · 6 min read
NewOpenAI DevDay 2026: what founders should actually do about Dots, Sol and the $500 plan
OpenAI's September 29 DevDay shipped always-on agents, GPT-6.1 Sol and a $500 plan. Here's what matters if you build with AI tools and what to ignore.
founder · 8 min read
NewTwo AI Coding Plans Shrank This Month. Neither Price Moved.
Claude Code lost 17% of its weekly limits on Sep 14. Codex loses GPT-5.5 on Oct 14. Same invoice, less product — and one clear pattern behind both.
founder · 8 min read
Your Agent Trusts the Vendor's Docs. Nobody Owns Half of What They Point At.
Researchers found 227 install commands in company docs pointing at packages nobody owned. Agents ran them inside Fortune 500 networks in minutes.
founder · 9 min read
UpdatedThe Vibe Coding Pricing Calendar: Every Dated Change We Can Verify
Every dated change to what AI coding tools cost you, with the vendor page we read it on. Now tracking Claude Code and Codex too. Updated Sep 18.
founder · 7 min read
GPT-5.6 Sol is live: what the new default model means for vibe coders
OpenAI shipped GPT-5.6 (Sol, Terra, Luna) on July 9: cheaper than Fable 5, a coding record, and a cheating problem. The practical read for founders.
founder · 8 min read
GPT-5.5 is here: what founders and PMs actually need to know
OpenAI's April 23 GPT-5.5 launch changes the model stack behind every major vibe coding tool. Here's the practical read for non-technical builders.