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OpenAI’s new Ultra Fast mode runs Codex up to 8x faster, and on the same day they cut the usage on the $200 plan in half. The launch that matters most for AI builders isn’t the speed though, it’s sign in with ChatGPT, which turns OpenAI into the electricity bill and every app into an appliance.
I sat down with Hamel Husain at his home to break down OpenAI Dev Day 2026 and what it actually changes for people building with AI. We upgraded to the new $500 Pro plan live, compared what you really get from Codex vs Claude Code, walked through Hamel’s vibe-coded apps for teaching his kids, and ran a live demo of Codex reverse engineering LinkedIn’s API.
If you’re an AI builder or a tech exec trying to work out which Dev Day launches change how you build and price your product, you need to watch this.
- hamel.dev hamel.dev
Hosted by Robert Ta and Jonathan McCoy, co-founders of Clarity, reporting from the front lines of building an AI company.