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    Guide explains how OpenAI’s Agents API fits alongside ChatGPT and Codex

    The guide describes the Agents API as a way to build with an agent OpenAI operates, while distinguishing developer tools from apps people use directly.

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    TLDR

    The guide says OpenAI introduced the Agents API on September 10, 2026, and that it was in public beta when the guide was shared the next day. It separates using ChatGPT or the Codex app from building OpenAI-powered features into other products, where developers can connect models and agents to their own interfaces, data and tools. It also distinguishes the OpenAI SDK, which helps developers call APIs, from the Agents SDK, which provides an agent framework—not extra apps everyone needs to install.

    Combined views

    444.2K

    5 Sources, first seen 19d ago

    Combined views

    444.2K

    5 Sources, first seen 19d ago

    2.4K likes
    19d ago
    first seen 19d ago
    2.4K likes
    213 comments
    3.6K saves
    218 reposts

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    213 comments
    3.6K saves
    218 reposts

    Sentiment

    Positive——Negative

    Summary

    Not enough discussion yet.

    No sentiment analysis available yet.

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    5 Sources

    @gregisenbergThis is the AWS moment for agents. OpenAI just shipped the Agents API, and everything that made agents hard to build is now something you rent instead of build. Keeping one running for days, remembering what it's doing, using tools, recovering when a step fails. Now it's an API call. Before AWS, you had to buy and run your own servers, so only well funded teams could build real/scalable products. AWS made the hard part rentable, and all the value moved up to whoever had the best idea for what to build on top. Same thing is happening here. I'll be honest, my first reaction was that this is bad news for a lot of people I know. If your whole company is an agent platform, the thing you spent the last year building is now included for the price of tokens. But the more I sat with it, the more I think it's really good news if you're building for one specific industry. Basically, vertical software type stuff. If the hardest engineering just became a line item, then the only thing left that's actually hard is knowing the job. Like what counts as a done claim, what makes a filing get rejected, where the money leaks. So the wedge now is owning one painful workflow with your own tools, data, approvals, and a clear ROI. Freight exceptions, insurance reviews, security triage, revenue leakage, healthcare admin, compliance ops. I see a lot of doomers on X saying software is over (and sometimes I feel the same way), you'll just use Claude or ChatGPT for everything. BUT, if that were true, OpenAI wouldn't be shipping infrastructure for other people to build agents on. They're telling you exactly what they think: the general model is theirs, the 10,000+ specific jobs it needs to be pointed at are yours. I think software is just evolving. It's becoming an agent internet, and every layer of it, the tools, the workflows, the boring jobs, gets rebuilt for a user that doesn't have eyes or hands. That's a lot of companies waiting to be built.
    @derrickcchoiWhat does the new Agents API mean for the apps you use, and how does it fit alongside OpenAI’s other products? Wrote up a quick guide with easy to understand examples. https://x.com/i/article/2098327954283704320
    @reach_vbRT @derrickcchoi: What does the new Agents API mean for the apps you use, and how does it fit alongside OpenAI’s other products? Wrote up a…
    @kevinwhinneryThe era of the dumb token pipe is ending. Agent harness APIs will be the new integration point for AI applications. https://x.com/i/article/2098420737270775809
    @OpenAIDevsRT @derrickcchoi: What does the new Agents API mean for the apps you use, and how does it fit alongside OpenAI’s other products? Wrote up a…

    5 Sources

    @gregisenbergThis is the AWS moment for agents. OpenAI just shipped the Agents API, and everything that made agents hard to build is now something you rent instead of build. Keeping one running for days, remembering what it's doing, using tools, recovering when a step fails. Now it's an API call. Before AWS, you had to buy and run your own servers, so only well funded teams could build real/scalable products. AWS made the hard part rentable, and all the value moved up to whoever had the best idea for what to build on top. Same thing is happening here. I'll be honest, my first reaction was that this is bad news for a lot of people I know. If your whole company is an agent platform, the thing you spent the last year building is now included for the price of tokens. But the more I sat with it, the more I think it's really good news if you're building for one specific industry. Basically, vertical software type stuff. If the hardest engineering just became a line item, then the only thing left that's actually hard is knowing the job. Like what counts as a done claim, what makes a filing get rejected, where the money leaks. So the wedge now is owning one painful workflow with your own tools, data, approvals, and a clear ROI. Freight exceptions, insurance reviews, security triage, revenue leakage, healthcare admin, compliance ops. I see a lot of doomers on X saying software is over (and sometimes I feel the same way), you'll just use Claude or ChatGPT for everything. BUT, if that were true, OpenAI wouldn't be shipping infrastructure for other people to build agents on. They're telling you exactly what they think: the general model is theirs, the 10,000+ specific jobs it needs to be pointed at are yours. I think software is just evolving. It's becoming an agent internet, and every layer of it, the tools, the workflows, the boring jobs, gets rebuilt for a user that doesn't have eyes or hands. That's a lot of companies waiting to be built.
    @derrickcchoiWhat does the new Agents API mean for the apps you use, and how does it fit alongside OpenAI’s other products? Wrote up a quick guide with easy to understand examples. https://x.com/i/article/2098327954283704320
    @reach_vbRT @derrickcchoi: What does the new Agents API mean for the apps you use, and how does it fit alongside OpenAI’s other products? Wrote up a…
    @kevinwhinneryThe era of the dumb token pipe is ending. Agent harness APIs will be the new integration point for AI applications. https://x.com/i/article/2098420737270775809
    @OpenAIDevsRT @derrickcchoi: What does the new Agents API mean for the apps you use, and how does it fit alongside OpenAI’s other products? Wrote up a…