OpenAI Developers (@OpenAIDevs)

August kept us all busy with new surfaces, workflows, API improvements, plugins, and more....

Build long-running agents with more control over agent execution. New capabilities in the Agents SDK: • Run agents in controlled sandboxes • Inspect and customize the open-source harness • Control when memories are created and where they’re stored ...

We're rolling out plugins in Codex. Codex now works seamlessly out of the box with the most important tools builders already use, like @SlackHQ, @Figma, @NotionHQ, @gmail, and more. <a target="_blank" href="http://developers.openai.com/codex/plugins" color="blue">developers.openai.com/codex/plugin...

We’re releasing new Codex features to make it a more effective coding collaborator: - A new IDE extension - Easily move tasks between the cloud and your local environment - Code reviews in GitHub - Revamped Codex CLI Powered by GPT-5 and available through your ChatGPT plan....

Two big updates to the Responses API today.

🖇️ Connectors — Pull context from Gmail, Google Calendar, Dropbox, and more in a single API call.

💬 Conversations — Persist chat threads for your users, without running your own database.

More below:...

We’re rolling out a few updates to Codex today: 1. Codex is rolling out to ChatGPT Plus users today. It includes generous usage limits for a limited time, but during periods of high demand, we might set rate limits for Plus users so that Codex remains widely available....

Remember reinforcement fine-tuning? We’ve been working away at it since last December, and it’s available today with OpenAI o4-mini! RFT uses chain-of-thought reasoning and task-specific grading to improve model performance—especially useful for complex domains. Take @AccordanceAI, which used RFT to...

GPT-4.5 with @flavioAd’s prompt. Then we asked to make it more creative. <span class="quote-card" data-quote-index="0"></span>...

We're launching new tools to help developers build reliable and powerful AI agents. 🤖🔧 Timestamps: 01:54 Web search 02:41 File search 03:22 Computer use 04:07 Responses API 10:17 Agents SDK ...