GPT-Realtime-2.1-mini is now available in the API (1 minute read)

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Summary

OpenAI has made GPT-Realtime-2.1-mini available via its API, providing a cost-efficient option for real-time applications.

GPT-Realtime-2.1-mini brings reasoning and tool use to OpenAI's Realtime mini lineup at the same cost as GPT-Realtime-mini.
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Cached at: 07/09/26, 07:39 AM

# Thread by @OpenAIDevs on Thread Reader App Source: [https://threadreaderapp.com/thread/2074255408013955466.html](https://threadreaderapp.com/thread/2074255408013955466.html) ## More from @OpenAIDevs [![OpenAI Developers Profile picture](https://pbs.twimg.com/profile_images/2022002720971096064/l3Kyt4qt_bigger.jpg)](https://threadreaderapp.com/user/OpenAIDevs) May 16 We’re having way too much fun working through your feedback\. \(Please, keep it coming\.\) Keyboard shortcuts are now customizable\. Set Codex up around how you actually work, then tweak shortcuts from settings instead of adapting to our defaults\. ![Video Poster](https://pbs.twimg.com/media/HIdjX0DaYAALhYp.jpg) Git actions are easier to reach\. We moved key git controls back into the review flow, so common actions like commit, push, branch, PR creation, and PR status are closer to where you’re already working\. ![Video Poster](https://pbs.twimg.com/media/HIdjbwZagAAB9Yv.jpg) Improved thread panel\. Related context and controls now load and behave more cleanly from the thread header: summaries, local state, Git context, sources, and more\. ![Video Poster](https://pbs.twimg.com/media/HIdjg81bgAAYP6a.jpg) Read 5 tweets [![OpenAI Developers Profile picture](https://pbs.twimg.com/profile_images/2022002720971096064/l3Kyt4qt_bigger.jpg)](https://threadreaderapp.com/user/OpenAIDevs) Jan 15 Today we’re announcing Open Responses: an open\-source spec for building multi\-provider, interoperable LLM interfaces built on top of the original OpenAI Responses API\. ✅ Multi\-provider by default ✅ Useful for real\-world workflows ✅ Extensible without fragmentation Build agentic systems without rewriting your stack for every model:[openresponses\.org](http://openresponses.org/) ![Video Poster](https://pbs.twimg.com/amplify_video_thumb/2011862892585623552/img/hctjghclCKQ8KAxt.jpg) Read 4 tweets [![OpenAI Developers Profile picture](https://pbs.twimg.com/profile_images/2022002720971096064/l3Kyt4qt_bigger.jpg)](https://threadreaderapp.com/user/OpenAIDevs) Dec 19, 2025 🆕 Codex now officially supports skills Skills are reusable bundles of instructions, scripts, and resources that help Codex complete specific tasks\. You can call a skill directly with $\.skill\-name, or let Codex choose the right one based on your prompt\. Following the[agentskills\.io](http://agentskills.io/)standard, a skill is just a folder:[SKILL\.md](http://skill.md/)for instructions \+ metadata, with optional scripts, references, and assets\. We’re looking forward to collaborating on the standard so it’s easy to share and use skill across different tools\.[![Screenshot of a folder tree layout for a skill](https://threadreaderapp.com/images/1px.png)](https://pbs.twimg.com/media/G8jULsYWUAAM6JA.jpg) You can install scripts for just yourself in \(~/\.codex/skills\), or for everyone working on a project in \(repo\_path/\.codex/skills\)\. We’ve also bundled a few handy system skills with Codex, such as plan, skill\-creator, and skill\-installer\. [developers\.openai\.com/codex/skills](https://developers.openai.com/codex/skills)[![Screenshot of the Codex CLI with the skill selector open](https://threadreaderapp.com/images/1px.png)](https://pbs.twimg.com/media/G8jUh_kWAAA89U9.jpg) Read 7 tweets [![OpenAI Developers Profile picture](https://pbs.twimg.com/profile_images/2022002720971096064/l3Kyt4qt_bigger.jpg)](https://threadreaderapp.com/user/OpenAIDevs) Nov 7, 2025 You can now get more Codex usage from your plan and credits with three updates today: 1️⃣ GPT\-5\-Codex\-Mini — a more compact and cost\-efficient version of GPT\-5\-Codex 2️⃣ 50% higher rate limits for ChatGPT Plus, Business, and Edu 3️⃣ Priority processing for ChatGPT Pro and Enterprise GPT\-5\-Codex\-Mini allows roughly 4x more usage than GPT\-5\-Codex, at a slight capability tradeoff due to the more compact model\. Available in the CLI and IDE extension when you sign in with ChatGPT, with API support coming soon\.[![Image](https://threadreaderapp.com/images/1px.png)](https://pbs.twimg.com/media/G5K8HGWWgAAKhQy.jpg) Select GPT\-5\-Codex\-Mini for easier tasks or to extend usage when you’re close to hitting rate limits\. Codex will also suggest switching to it when you reach 90% of your limits, so you can work longer without interruptions\.[![Image](https://threadreaderapp.com/images/1px.png)](https://pbs.twimg.com/media/G5K8eEqWMAAevck.jpg) Read 4 tweets [![OpenAI Developers Profile picture](https://pbs.twimg.com/profile_images/2022002720971096064/l3Kyt4qt_bigger.jpg)](https://threadreaderapp.com/user/OpenAIDevs) Aug 21, 2025 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: Build rich experiences with connectors to: \- Read emails \- Fetch calendar events \- Search files and chats Gmail, Google Calendar, Drive, Dropbox, Teams, Outlook Calendar \+ Email, and SharePoint are available now\. They work with deep research, too\! [platform\.openai\.com/docs/guides/to…](https://platform.openai.com/docs/guides/tools-connectors-mcp)[![Image](https://threadreaderapp.com/images/1px.png)](https://pbs.twimg.com/media/Gy6PFWMboAACULv.jpg) Here’s a demo app that shows how you can connect your app to Google Calendar and fetch upcoming events:[github\.com/openai/openai\-…](https://github.com/openai/openai-responses-starter-app) Read 4 tweets

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