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OpenAI Developers

@OpenAIDevs
Official updates for developers building with Codex & the OpenAI Platform • Service status: https://t.co/kZwnwdYYEq
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GPT-6.1 Terra is also coming to the API and Codex. Use Terra to build apps and agents that interpret images, navigate software, and take action. You get fast computer use at a lower cost, ideal for high-volume workflows.
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We serve data in milliseconds to more than 1.2 billion users across 40 geographic regions. To reach that scale, we worked closely with @AzureCosmosDB on our storage architecture, achieving a 12x improvement in global median read latency.
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Add near real-time decisions to your workflow with the Decisions API, now generally available. Build faster, more cost-efficient apps and agents that can classify text and images, evaluate inputs, and determine what happens next without generating a full model response.
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You can now choose 12-hour prompt caching in the API. Persistent agents, like dots, reuse context throughout the day. You can keep shared instructions, tools, and context cached longer and pay the lower cached-input rate, even when requests are hours apart.
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Cool projects our community is cooking with Codex:
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Here’s how our engineers use Codex at OpenAI to dig through our codebase, find what needs attention, and chip away at the maintenance backlog:
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Put your dot on call. Ali, an engineer at OpenAI, used his dot to triage an on-call incident at 3am. His dot investigated the issue and started a Codex thread, so he could steer the work from his phone in the ChatGPT app.
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You can just build things with Codex We built a site for you to explore hardware projects from the community and share your own.
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Annotations paired with WebMCP give your agents more context to act on. Check out how @kagigz uses custom annotation controls and suggested prompts to help users edit scenes and update expenses in ChatGPT’s browser.
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Now in beta: composer predictions in Codex for Pro users. Codex can now suggest your next message based on your conversation and how you talk to it. One of the most loved new features we've ever tested internally.
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Ultrafast is rolling out today for GPT-6.1 Sol in the API, Codex, and ChatGPT Work. Near-Astra intelligence at up to 8x faster speeds than Sol Standard, so you can build as fast as the ideas come.
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Build richer, more interactive plugins for ChatGPT. With plugin extensions, you can launch plugins from the sidebar, support @ mentions, and add file viewers. See how in this walkthrough with @coreyching:
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Let your app choose the right model, tool, or action in near real-time with Decisions API, now available to all developers in public beta. The Decisions API makes decisions up to 10x faster than GPT-6 Luna through the Responses API.
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Code faster, review changes, and keep parallel work moving. 🧵 Here's a roundup of all the developer updates from OpenAI DevDay:
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Ultrafast is our fastest way to build with Astra yet: in Codex, it runs up to 8x faster than Astra Standard and 4x faster than Astra Fast. Bring your ideas to life as fast as you can type them.
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GPT-6 Sol and Luna just landed in Astra’s orbit. Both launch today with API prices 50% lower than GPT-5.6. Build with Sol. Scale with Luna. To production and beyond.
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Appshots 🤝 Windows Give ChatGPT context from the apps you’re working in and spend less time getting it up to speed. Debug an issue, grab a UI you want to recreate, pull in data from another app, and more. A lot less copying and pasting.
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GPT-6 Astra helps @cognition’s Devin back up “it works” with tests before the team ships.
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GPT-Live-1 is now available in the API. Bring ChatGPT’s natural back-and-forth to your app, with voice agents that listen while they speak and work with the models and harness you choose.
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