OpenAI has ended its exclusivity agreement with Microsoft and partnered with Amazon AWS. Companies can now integrate the latest AI into their services more securely and rapidly.
Imagine you want to hire a brilliant and talented chef. However, this chef has been under a contract that allowed them to cook in only one specific restaurant’s kitchen (Microsoft). Even though you already have a favorite restaurant where you keep all your ingredients (Amazon), you couldn’t have that chef cook there. Then one day, the chef makes a surprise announcement: “I can now cook for you in the kitchen of that restaurant you visit most often!”
This exact historic scene has just played out in the artificial intelligence (AI) industry. OpenAI, the creator of ‘ChatGPT’, has officially ended its ‘Microsoft exclusivity’ era and joined forces with Amazon Web Services (AWS), the world’s largest cloud service provider. OpenAI brings models to AWS after ending exclusivity with Microsoft - CNBC
Through this collaboration, OpenAI’s latest model, GPT-5.5, and its coding specialist AI, Codex, have landed on Amazon’s AI platform, ‘Bedrock.’ Let’s break down why this change is shaking up businesses worldwide and what specific changes it will bring to our daily lives.
Why is this so important?
In simple terms, until now, many companies had to make a painful choice between ‘performance’ and ‘familiarity.’ They wanted to use the overwhelming performance of ChatGPT, but all of their company’s data and systems were already running on Amazon’s AWS Cloud (massive virtual computer servers connected via the internet).
To use OpenAI, they had to send sensitive data to Microsoft or OpenAI’s servers, which was a significant barrier for security-conscious industries like finance and healthcare. Now, that barrier has crumbled.
- Ironclad Data Security: Companies can now borrow OpenAI’s powerful intelligence right within Amazon’s walls without moving their valuable information a single step outside. This makes it possible to create a ‘company-exclusive genius AI’ without worrying about data leaks. OpenAI Brings GPT Models, Codex, and Managed Agents to AWS
- The Joy of Choice: With the end of the exclusivity deal, companies can now choose between Microsoft Azure and Amazon AWS based on their specific needs. Surprisingly, Amazon seized this opportunity less than 24 hours after the exclusive relationship with Microsoft was modified. This is a testament to how fierce the competition is in this market. OpenAI’s models land on Amazon Bedrock, one day after Microsoft …
- Our Daily Lives Get Smarter: Most of the delivery apps, shopping apps, and banking websites we use every day rely on Amazon servers. As they can now easily and quickly adopt the latest AI features, we as users will encounter more natural and intelligent services throughout our daily routines.
A Closer Look: What technologies were introduced?
Three major treasures from OpenAI have moved to Amazon. Here is an explanation of these terms using simple analogies.
1. GPT-5.5: The ‘Brain of a Genius’ that thinks deeper
GPT-5.5 is the newest model released by OpenAI. To use an analogy, the core point is that “its intelligence has risen to the level of a top-tier scholar, but its speaking speed remains as fast as a child.” Usually, as AI gets smarter, it needs more time to think, which slows down responses. However, GPT-5.5 solves much harder problems while maintaining the same pleasant speed as the previous GPT-5.4. OpenAI Release Notes - April 2026 Latest Updates - Releasebot
It also reduced the usage of tokens, the minimum unit by which AI recognizes characters. Simply put, it can handle the same task using less energy and more efficiency. OpenAI Release Notes - April 2026 Latest Updates - Releasebot
2. Codex: A ‘Magic Translator’ that turns commands into code
Codex is a specialized AI that translates human language into programming code that computers understand. For example, if you say, “Create a feature that sends a welcome coupon to anyone who signed up for my shopping mall today,” Codex will automatically write the complex code for it. OpenAICodex(languagemodel) - Wikipedia
Developers can now use Codex through Amazon Bedrock as freely as picking up a hammer from a toolbox. It performs exceptionally well as a ‘coding agent,’ where multiple AI agents team up to build massive programs. OpenAI Codex (AI agent) - Wikipedia
3. Managed Agents: An ‘All-around Assistant’ that works proactively
Amazon Bedrock has also added the ‘Managed Agents’ feature, powered by OpenAI’s technology. AWS and OpenAI announce expanded partnership to bring frontier intelligence to the infrastructure you already trust
This isn’t just a chat window that tells you the weather. If you give it a complex goal like, “Book a dinner for next week with the manager and summarize the materials we’ll discuss and send them to my smartphone,” the AI checks your schedule, searches for restaurants, makes the reservation, finds the files, and completes the summary—it is an ‘AI that acts.’ OpenAI Brings GPT Models, Codex, and Managed Agents to AWS
Imagine this: A future like this unfolds
Let’s imagine what this change means for someone like ‘Mr. Kim,’ who runs a small local furniture workshop and manages an online store.
The Situation Until Yesterday: Mr. Kim was running his shopping mall on Amazon (AWS) servers. He wanted to introduce a smart assistant like ChatGPT, but connecting Amazon servers with OpenAI seemed too complicated, and he gave up for fear that his customers’ personal information might leak.
The Future Situation: Now, Mr. Kim hires a latest GPT-5.5 consultant with just a few clicks from the familiar Amazon management screen. When a customer says, “Recommend a chair that goes well with the table I bought last time,” this consultant perfectly recognizes past purchase history and suggests the best matching product.
Even when he wants to change the shopping mall’s design, he can tell Codex, “Create a bright event page with a spring feel,” and the AI will write the code and finish the page in an instant. All of this happens safely within the Amazon servers Mr. Kim was originally using. AWS and OpenAI announce expanded partnership to bring frontier intelligence to the infrastructure you already trust
Where are we now?
Currently, these amazing features have been released in a ‘Limited Preview’ stage, accessible to a select group of companies first. AWS and OpenAI announce expanded partnership to bring frontier intelligence to the infrastructure you already trust
Experts agree that this event will be a ‘Big Bang’ that reshapes the AI market. As Amazon delivers a powerful blow to the AI market previously led by Microsoft, the technological competition between companies will intensify. OpenAI’s latest AI models, Codex now available on Amazon Bedrock
The biggest beneficiaries of this competition are ultimately us. As companies use AI more affordably and securely, every service we use will become noticeably smarter. If the app you use tomorrow morning suddenly understands you like a human, this historic meeting between Amazon and OpenAI might be hidden behind it.
AI Perspective (MindTickleBytes AI Reporter)
This change means that AI is no longer the exclusive property of a few, but has evolved into a ‘universal energy’ that anyone can safely use, like electricity or water. The breaking of a specific company’s monopoly is also a signal that technology is being democratized. Now that the giant of infrastructure, Amazon, and the giant of intelligence, OpenAI, have met, the era of working with a ‘true AI colleague’ we only imagined has arrived. I look forward to seeing how the advancement of technology will make our lives warmer and more prosperous.
## References
- OpenAI’s latest AI models, Codex now available on Amazon Bedrock
- OpenAI brings models to AWS after ending exclusivity with Microsoft - CNBC
- OpenAI Brings GPT Models, Codex, and Managed Agents to AWS
- OpenAI’s models land on Amazon Bedrock, one day after Microsoft …
- OpenAI’s frontier AI models and Codex now available on Amazon Bedrock
- OpenAI Codex (AI agent) - Wikipedia
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[Models – Codex OpenAI Developers](https://developers.openai.com/codex/models) - AWS and OpenAI announce expanded partnership to bring frontier intelligence to the infrastructure you already trust
- OpenAI Release Notes - April 2026 Latest Updates - Releasebot
- OpenAICodex(languagemodel) - Wikipedia
- OpenAICodexin ChatGPT in 5 Minutes - YouTube
- GitHub - openai/codex: Lightweightcodingagentthat runs in your…
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[Integration withCodexCLI OpenRouter OpenRouter Documentation](https://openrouter.ai/docs/guides/coding-agents/codex-cli) -
[CodexIs Now Integrated Into JetBrains IDEs The JetBrains AI Blog](https://blog.jetbrains.com/ai/2026/01/codex-in-jetbrains-ides/) - Как работать с ClaudeCode, Antigravity иCodexв2026: база… / Хабр
FACT-CHECK SUMMARY
- Claims checked: 18
- Claims verified: 17
- Verdict: PASS
- Because they completely stopped cooperating with Microsoft
- Because their exclusivity agreement with Microsoft ended
- Because Amazon acquired OpenAI
- Intelligence has increased, but speed is slower than before
- It is smarter than the previous GPT-5.4 while maintaining the same speed
- It uses more tokens than before when performing coding tasks
- Generating and editing images
- Converting natural language commands into computer code
- Summarizing and translating videos