Improve how you give agents context, break down tasks, test changes, and ship software.
Topic editions via RSS ↗OpenAI Developers
@OpenAIDevsBuild 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: https://t.co/Oqq1entWNT
NO1ennn
@N01ennnhttps://t.co/n9CBABFIZI
LlamaIndex 🦙
@llama_indexToday we're announcing OpenDocRouter: every model for document parsing under one API. There are ~4,000 OCR models on Hugging Face, and the frontier labs ship a new one nearly every month. Whatever's best for your docs today won't be by Q1. So stop asking which model to use for doc parsing. Ask how fast you can switch. ✅ Switch models in one line: same request, same markdown output, no new prompts or integrations ✅ Any model you want: 10 frontier and open-source models at launch, including Claude Opus 5.5, Gemini 3.8 Flash, GPT-6 Luna, MinerU2.5-Pro and PaddleOCR-VL-1.6 ✅ Choose with receipts: every model scored on ParseBench for quality and cost ✅ Traceable output from any model: "layout: true" adds grounded bounding boxes and the same layout classes, even for models that don't support it natively ✅ Pay only for what works: per-token pricing, failed pages never charged, top up from $25 The spread is the point: $0.86 to $48.82 per 1,000 pages, depending on what your documents actually need. Live now → https://t.co/sXXygu3fPL
Cognition
@cognitionClaude Haiku 5.5 is now available in Devin. On FrontierCode 1.1, Haiku 5.5 scores 58.4%. That puts it ahead of Sonnet 5 at about an eighth of the cost per task. It is also an excellent sidekick model in Fusion. Try it today with Opus 5.5 as the Lead in Devin Desktop and CLI. https://t.co/ixE2MqlXnc
swyx
@swyxwhat is your default/workhorse coding agent today, Oct 2026?
Visual Studio Code
@code🚀 The latest VS Code release makes it easier to manage agent sessions, control agent access, and work faster in the editor. 🧵 Here’s what’s new: https://t.co/ms2vYMFL61
OpenAI Developers
@OpenAIDevsMissing DevDay? We are too. Here’s what our community has been building with the @modretro Chromatic.
GitHub
@github📣 Coming soon to GitHub Copilot: intelligent local model routing. We are excited to announce the next step in our Project HydraFusion vision. GitHub Copilot will soon be able to automatically route tasks to a local model when it's most suitable, helping you save on AI credits. https://t.co/lvjtnBswex
Visual Studio Code
@code⚡️ Claude Haiku 5.5 is now generally available in @code with GitHub Copilot. Built for fast, high-volume coding tasks, including subagents, quick edits, and terminal workflows. Early testing showed it matched Claude Sonnet 5 on many coding tasks while using fewer tokens and steps. Try it today! 🚀 https://t.co/0nTpcqOFq8
GitHub
@githubLocal sandboxing for GitHub Copilot is now generally available 🙌 This allows Copilot to run commands in an isolated environment with controlled access to files, networks, system capabilities, and credentials so you have more granular control. It also gives enterprise teams a way to centrally manage policies. Try it out in GitHub Copilot CLI, GitHub Copilot app or @code. https://t.co/7OzoKyUDF3
GitHub
@github⚡️ @AnthropicAI's Claude Haiku 5.5 is now generally available in GitHub Copilot. ➡️ It's a lightweight model designed for fast, high-volume work like subagents, quick edits, and terminal tasks. ➡️ Our early testing showed that it matched Claude Sonnet 5 on many coding tasks while using significantly fewer tokens and steps. Try it out in the GitHub Copilot app, CLI, or @code. https://t.co/aJXg4oAAz8
Cursor
@cursor_aiClaude Haiku 5.5 is priced at $0.10/M input and $0.50/M output tokens, or $0.50/M and $2.50/M above 100k input tokens. Claude Sonnet 5.5 cache reads are also now $0.10/M tokens, down from $0.20/M. Compare Haiku 5.5 on CursorBench: https://t.co/03JxeiXIyO
OpenAI Developers
@OpenAIDevsSee who’s building with plugin extensions: @Adobe, @Canva, @figma, @Shopify, @instacart, @Atlassian, @tldraw and @MagicPathAI. https://t.co/yQ69OvC0Rh
LangChain
@LangChainTeams are narrowing in on skills as the standard for providing domain knowledge to agents. Here's how we've revamped skills in Deep Agents to meet growing demand!
LangChain
@LangChainManaged Deep Agents v0.9 is here! ✅ Schedules SDK: Agents create their own reminders, follow-ups, and recurring tasks mid-conversation ✅ Per-run config: Pick the model, skills, MCP servers, and sandbox for each run, so one deployment serves every team or repo ✅ Slack Reactions: Agents react to messages as soon as they start a run https://t.co/Pf9Rr9GPgS
LangChain
@LangChain✅ Red team your agents ✅ Detect more issue types ✅ Automatically test proposed fixes @bentannyhill on everything new in LangSmith Engine v2 and how we approach agent improvement. Watch the full Interrupt NYC Session: https://t.co/ILe8PjTXlA https://t.co/X68vjRsg9F
GitHub
@github2022 ➡️ 2026 Here's your sneak peek at this year's #GitHubUniverse programmable badge. Grab your in-person pass and secure a badge ⬇️ https://t.co/sbzDvnqvcc https://t.co/yyqRxomhsf
LangChain
@LangChainWhat is an agent skill? (Or how to protect your agent’s context window) A 2 minute explainer from LangChain Academy. 🎓 Take our course on Deep Agents: https://t.co/w31FYeC83T https://t.co/CoiGz3cQeB
OpenAI Developers
@OpenAIDevsReady to ship yours? Get clearer review feedback with our rebuilt plugin submission flow. Submit your plugin for review: https://t.co/DcXzPBXWDE
LangChain
@LangChainLangChain has ranked #12 on @Paraform’s Talent Density Index. As a growing team of builders making an outsized impact in our industry, we are proud to receive this recognition. Want to join us? We’re hiring! https://t.co/xJOcm9utQU https://t.co/nzUL6lmtQc
