LETS GOOOO! Excited to introduce GPT-5.5 Thinking & Pro in ChatGPT and Codex It's our smartest model *yet* for real work: stronger agentic coding, computer use, knowledge work, long-context reasoning, and scientific research It can plan, use tools, check its work, recover
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AI Model Creates and Deploys Flipper Zero Apps via USB
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In this example, it created apps for my Flipper Zero through a USB connection and pushed them successfully to the device.
— Pietro Schirano (@skirano) 23 avril 2026
Just an idea, a cable, and a model that could actually make it real. pic.twitter.com/uWCsr0ydElIn this example, it created apps for my Flipper Zero through a USB connection and pushed them successfully to the device. Just an idea, a cable, and a model that could actually make it real.
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GPT-5.5 Unlocks Vibe Hardware Era for AI Workflows
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GPT-5.5 is the highest leverage tool I have ever touched.
— Pietro Schirano (@skirano) 23 avril 2026
For the first time, I don’t feel limited by what a model can do. I feel limited only by what I can imagine.
Training workflows. Impossible optimizations. Hardware experiments over USB.
The vibe hardware era begins. https://t.co/0mUw3YoWySGPT-5.5 is the highest leverage tool I have ever touched. For the first time, I don’t feel limited by what a model can do. I feel limited only by what I can imagine. Training workflows. Impossible optimizations. Hardware experiments over USB. The vibe hardware era begins.
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GPT-5.5 Resolves Complex Code Conflicts in AGI Moment
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One day while testing GPT-5.5, I had my first taste of AGI.
We had a branch with hundreds of visual and front-end changes, plus complex refactors.
At the same time, main had changed a lot too.
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GPT-5.5 Completes Branch Integration Task in One Shot
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I asked GPT-5.5 to compare both branches, create a new branch off main, and make sure everything from the other branch was integrated correctly.
It did it in one shot.
I was in disbelief.
It took about 20 minutes. -

GPT-5.5 Codex generates visual assets and web UI code
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🚨 I got early access to GPT-5.5 in Codex and tried it on complex web UI and game generation.
— CHOI (@arrakis_ai) 23 avril 2026
The biggest difference I noticed was its insane ability to directly generate and implement visual assets in a single shot.
It handled complete design integrations better than my… pic.twitter.com/4DujdCi7EEI got early access to GPT-5.5 in Codex and tried it on complex web UI and game generation. The biggest difference I noticed was its insane ability to directly generate and implement visual assets in a single shot.
It handled complete design integrations better than my -
Usage tracking improvements for plugins skills and custom agents
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Run /usage to see what's eating up your limits. Improving this over the coming days to give you more visibility into plugins, skills, and custom agents
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GPT-5.5: Faster and Smarter Than GPT-5.4
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GPT-5.5 delivers this step up in intelligence without compromising on speed. GPT-5.5 matches GPT-5.4 per-token latency in real-world serving, while performing better across nearly every evaluation we measured. It also uses significantly fewer tokens to complete the same Codex
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GPT-5.5: New AI for Work and Agents
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Introducing GPT-5.5
— OpenAI (@OpenAI) 23 avril 2026
A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done.
Now available in ChatGPT and Codex. pic.twitter.com/rPLTk99ZH5Introducing GPT-5.5 A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done. Now available in ChatGPT and Codex.
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GPT-5.5 Advances in Coding and Knowledge Work
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GPT-5.5 excels at writing and debugging code, researching online, analyzing data, creating documents and spreadsheets, operating software, and moving across tools until a task is finished. The gains are especially clear in agentic coding, computer use, knowledge work, and early
