OpenAI DevDay wasn't a launch... It was power move
OpenAI’s DevDay 2025 just changed the AI landscape forever. Sam Altman unveiled the ChatGPT Apps SDK, AgentKit, GPT-5 Pro, and Sora 2 — transforming ChatGPT from a chatbot into a full-blown operating system for intelligence. From in-chat apps to autonomous AI agents and instant commerce, OpenAI is redefining how we build, work, and create. This isn’t an update — it’s the start of the Agent Era.
OpenAI DevDay 2025 marked a pivotal moment, as Sam Altman unveiled transformative features like the ChatGPT Apps SDK and AgentKit, shifting ChatGPT from a chatbot to an intelligent operating system. The new capabilities allow seamless integration of apps, real-time actions, and commerce, positioning OpenAI as a key player in the AI economy and transforming workflows for developers and businesses.
Written by Krishna Krishna
I love tech
🚀 OpenAI DevDay 2025: How Sam Altman Just Turned ChatGPT into the New iPhone Moment
🔥 The AI World Just Shifted — and OpenAI Is Now Playing a Different Game
If you watched Sam Altman’s keynote at OpenAI DevDay 2025, you know something major just happened.
If you didn’t — buckle up.
This wasn’t just another “AI update.”
It was a paradigm shift.
The moment when ChatGPT stopped being a chatbot…
and became an operating system for intelligence.
💥 The Biggest Announcements from OpenAI DevDay 2025
Let’s break down what’s new — and why it matters.
🧩 1. ChatGPT Apps SDK
OpenAI just launched a full App SDK, allowing developers to build apps inside ChatGPT.
Imagine using Canva, Notion, or Spotify — without leaving the chat window.
This turns ChatGPT into an ecosystem, not just a tool.
🤖 2. AgentKit
The star of the show.
AgentKit lets you build AI agents that don’t just reply — they act.
These agents can browse, code, book, purchase, and execute workflows across platforms.
No prompts. No clicks. Just:
“Do this.”
And it’s done.
This is where automation turns into orchestration.
💻 3. Codex 2.0
OpenAI brought back Codex — but upgraded it to write, debug, and deploy code directly inside ChatGPT.
Developers can now go from idea → product without leaving the interface.
🧠 4. New Models for New Eras
OpenAI revealed three new models under the GPT-5 ecosystem:
That’s text → voice → video → action, all in one ecosystem.
💳 5. Agentic Commerce Protocol
You’ll soon be able to shop, book, and pay directly inside ChatGPT.
No redirects. No checkout pages.
Example:
“Book a Bali trip for next weekend.”
→ Flights, hotel, confirmation, receipt.
All inside one chat.
OpenAI is turning conversation into commerce.
🧠 Sam Altman’s Hidden Message
“ChatGPT isn’t a chatbot anymore — it’s a platform.”
That one sentence changed everything.
Apple built the App Store.
Google built Search.
OpenAI just built the Agent Store.
This isn’t about replacing humans — it’s about embedding intelligence into every workflow, every business, and every product.
💡 What This Means for Builders (and for Misty)
At Misty, we’ve been using ChatGPT to ideate, script, and automate our content workflows.
But with AgentKit + GPT-5 Pro, we’ve gone from creation to execution.
Here’s what our new AI stack can now do:
No humans. No prompts. Just results.
We call this system: Misty AgentFlow.
And it’s powered by OpenAI’s new era of intelligent agents.
🚀 The Future: From Prompt Engineers to Agent Engineers
We’re leaving behind the “prompt engineer” generation.
Now it’s all about Agent Engineers — people who design systems that think, act, and optimize in real time.
This shift will define the next wave of startups.
And if you’re not adapting — you’ll be watching from the sidelines.
⚙️ The Bottom Line
OpenAI isn’t building chatbots anymore.
They’re building the OS for the AI economy — and every founder, creator, and developer will live on it.
Sam Altman didn’t just launch features.
He launched the next computing platform.
💬 Final Thoughts
We’re entering an era where your digital assistant can:
→ Code your product
→ Build your brand
→ Manage your team
→ Run your business
And it all starts with Agents.
🔥 Want to see the Misty AgentFlow system in action?
Drop your email or comment below — I’ll send you a behind-the-scenes look at how we’re automating viral content using GPT-5 and AgentKit.
