Ever Wish You Could Dump a Plunger Full of IQ Into an Employee’s Neck?
- Rich Washburn
- 2 days ago
- 2 min read
Now You Can—Just Not the Live Ones.
This isn’t just a cool feature—it’s the fix we’ve all been waiting for.
Yes, OpenAI added the ability to switch models mid-chat months ago…But only for regular chats. Not for the real workhorses—the custom GPTs.
And that’s what makes this such a big deal.
Model Switching Inside Custom GPTs Is Finally Here
For months, if you wanted to level up the intelligence of your custom GPT (say, my go-to assistant ARIA), you were stuck with the default model—whatever was publicly current (GPT-4.0, for instance).
No way to assign GPT-4.5. No way to drop in the experimental O3 reasoning models. No way to toggle intelligence based on task complexity. Until now.
OpenAI quietly rolled out the ability to switch models inside custom GPTs, mid-conversation, just like you’ve been able to do in regular chats. It’s a small UI tweak—one little dropdown—but a massive shift in capability.
Why This Is Such a Game-Changer
Imagine you're deep into a planning session. Your assistant’s tracking ideas, capturing notes, generating content. Then you hit a wall—need tighter reasoning, better synthesis, faster logic.
Used to be, you had two bad choices:
Rebuild the session in another chat (and lose everything).
Stay in the current GPT and power through with limited muscle.
Now?You just click the model dropdown and level up your assistant’s IQ—without breaking flow.
ARIA Just Went Advanced Mode
ARIA already handles project orchestration like a seasoned exec. But when I need her to take a three-hour jam session and turn it into a polished proposal or strategic framework, I toggle over to something like:
GPT-4.5 (Advanced Reasoning)
GPT-4-1106 (O3 line)
Or whatever high-cognition model OpenAI’s testing this month
Same assistant. Same chat. Just… smarter.
It's Like Changing Engines Mid-Race—Without Slowing Down
This isn’t an upgrade you “set and forget.”It’s one you use dynamically. Mid-task. Mid-thought. Based on exactly what the moment needs.
And honestly? It’s such a no-brainer I’m shocked we didn’t have it sooner. But now that it’s here? Everything changes.
TL;DR
OpenAI finally gave us model switching inside custom GPTs. No more cold restarts. No more context loss. Just click, scale up the brainpower, and keep moving.
If you’re using a custom GPT for serious work—this is the feature you didn’t realize you were missing… until now.
Want me to drop this into a blog layout or prep it for LinkedIn? This one’s ready for primetime.
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