Custom GPT: “Content failed to load” when switching models

@BradWyatt, yeah I get why it looks like a model support issue, especially with what you’re seeing in the UI and console. The confusing part is it’s not really about “older vs newer models” being required. What’s actually happening is: * Actions aren’t supported in Pro mode right now * When you add Actions, your GPT is limited to Instant + Thinking models * So the model list changes, and during that switch/reload the Action runtime gets rebuilt If the Action spec or auth config has any issues, that rebuild step can fail, which is why the UI feels like it’s breaking when switching models. So it’s kind of two things overlapping: 1. model availability changes when Actions are enabled 2. your Action setup likely has something fragile that crashes during reinit That’s also why it works fine with Actions off. If you want to double check, quick test: * replace your Action with a tiny one-endpoint spec (no auth) * switch models again If that works cleanly, then it confirms it’s the spec/auth causing the break, not the model restriction itself. This one’s definitely not obvious from the UI, you’re not alone in hitting it. -Mark G.