You know that feeling when you open your phone after a big tech event and realize the entire internet’s having a meltdown?

Yeah — that’s exactly what happened after OpenAI’s Dev Day 2025.

Because this year’s event wasn’t just “new features and shiny demos.”  It was the day ChatGPT stopped being “just a chatbot” and started becoming a full-on digital ecosystem.

Let’s unpack everything they just dropped:

First up — ChatGPT can now use apps.

And not random, niche stuff — I’m talking Spotify, Canva, Zillow, Coursera — the apps you actually use in real life.

You can literally say:

…and boom — it just does it without leaving the chat.

It’s seamless, it’s fast, and honestly, it’s brilliant. Because instead of building a bunch of new tools from scratch and asking us to learn them, OpenAI did the clever thing — it brought the world we already use into ChatGPT.

If you ask me, it's the tech equivalent of turning your favorite café into your new office — comfortable, familiar, and now 10x more useful.

Nick Turley, OpenAI’s Head of ChatGPT, said they’re evolving the product “from a really useful app into something that feels more like an operating system.” And he’s right — ChatGPT’s not just answering questions anymore; it’s becoming the place where you actually do things.

Soon, developers will even be able to build their own apps that live inside ChatGPT, powered by OpenAI’s new SDK.

And don’t worry — safety’s on the checklist too.

There’s a roadmap for “mature” (18+) apps once proper verification kicks in. Meaning, the ChatGPT of the future might look totally different for everyone — from students to CEOs to your mom trying to figure out how to use Sora.

OpenAI also unveiled AgentKit, a new toolkit that lets developers build their own AI agents. Think of it like a no-stress design studio for bots — you can drag, drop, customize, test, embed — everything — all in one place.

And of course, Sam Altman couldn’t resist dropping this little bomb:

“Almost all new code written at OpenAI today is written by Codex users.”

That’s because Codex, now powered by GPT-5-level tech, is officially out of research preview — and it even integrates directly into Slack. So you can literally code with your AI buddy without switching tabs. 

Developers can now bring Sora 2’s AI video generation into their own apps.  So if you’re building a storytelling platform or an e-commerce site — you can plug Sora right in and generate custom videos instantly.

And speaking of Sora — OpenAI’s AI video generator (aka “TikTok for deepfakes”) — it’s not just generating pretty videos anymore. It now gives you full control over your AI self.

You decide how your likeness appears, where it shows up, and how it’s used. 

And After weeks of meme-worthy AI chaos, they’re tightening moderation, improving stability, and doubling down on creator control and consent.

But the fun part? Fictional character cameos.

Yep — OpenAI’s working on official collaborations that’ll let you legally bring fictional characters into your AI videos.

So no more unauthorized horrors like meth-cooking, Nazi SpongeBobs, or criminal Pokémon running loose in AI land. Instead, you’ll soon have proper, licensed cameos.

OpenAI didn’t just show off fancy demos — they made ChatGPT central to everything.

And that’s what makes this Dev Day different from every one before it.

They connected the dots, giving us:

AI we can talk to. Apps we already use. Tools we can build with. Media we can star in.

So yeah — OpenAI Dev Day 2025 was massive.

And if this is how 2025 ends, just imagine what 2026 might look like.

Maybe next year, ChatGPT will be booking our flights, editing our videos, and—who knows—making us breakfast.

Honestly? At this point, I wouldn’t bet against it. 😏

So tell me – which update blew your mind the most?

Drop it in the comments, or go explore more about it.