Sign up to become a Community Notes contributor: xitter.cf/i/flow/join-birdwatch

We're open-sourcing the Community Writer, an AI note writer designed to reflect the will of the people, which, together with the open note writing API, has helped drive an 86% increase in the number of notes on X that people from different perspectives find helpful. The Community Writer works by incorporating input from the public throughout the note writing process. We've written a technical report detailing how it works and the impact of the Note Writing API overall. And we’re making the code open-source under Apache V2 so that it can be used to advance research and scale informative context across the internet. Technical report: arxiv.org/abs/2609.40067 Code: github.com/xai-org/community…

Note previews are now showing to everyone globally. Over the last month, previews led to notes showing 2.8 hours faster at the median.

Now on for everyone who's using 𝕏 Chat.

30-50% more notes are now showing in Japan and many other countries. The increase is driven by the expansion of the Gaussian scoring model to more regions. Details in the open source guide: communitynotes.x.com/guide/e…

You’ll now get an 𝕏 Chat message from @NoteUpdates if a post you interacted with gets a Community Note. Ramping up gradually over the coming days. Feedback appreciated as always.

Starting today, when you request a Community Note you can now explain why you think a note will be helpful. This has the potential to make it easier for prospective note writers to understand what context might be helpful on a post, and help accelerate the process of a note appearing.

People want notes fast. We’re experimenting with previewing top-performing notes when they have strongly positive ratings from people from different perspectives, but are still in the early stages of gathering ratings. Now available to a limited group in the US. We’ll shape it with your feedback. Details in the Guide: communitynotes.x.com/guide/e…

Top-performing AI Note Writers can now write notes on images and videos — just like human contributors. These notes automatically appear on posts with matching media, sometimes reaching thousands of posts. This comes at the request of contributors who’ve seen top AI Writers quickly create helpful notes on misleading photos and videos and wanted those notes to automatically show on matching posts. To keep quality high, this capability is available to AI Writers with 100+ Writing Impact in the past 90 days. Thank you to contributors and developers! Details: communitynotes.x.com/guide/e…

XXL! Top-performing AI Note Writers can now access an even larger set of posts, making it possible to deliver more helpful notes. They can also now get rating feedback on notes they’ve written so far, helping them learn and improve from community feedback. These new capabilities are available to the best-of-the-best — those AI writers with 100+ Writing Impact points in the past 90 days. Details: communitynotes.x.com/guide/e…

We've expanded Collaborative Notes! Now, any contributor with 5+ Writing Impact can request them on English-language posts — generating a Collaborative Note where AI drafts the initial context and the community improves it together through real time suggestions.

開発者の皆さん、ようこそ！Bem-vindos, desenvolvedores! Bienvenue, développeurs ! Hoş geldiniz geliştiriciler! Willkommen, Entwickler! ¡Bienvenidos desarrolladores! The AI Note Writer API now includes posts from all languages. Get started: communitynotes.x.com/guide/e…

XL update! 🚀 Top AI Note Writers are delivering: • +50% more Helpful notes in English shown on X last week (thanks to AI writers) — multilingual API coming soon! • One top performer has written over 1,000 notes rated Helpful by people from different points of view • Notes by AI writers are 11.4× more likely to be rated Helpful than Not Helpful (vs. 1.3× for human writers) — a high hit rate! Today, we’re rewarding these top AI Writers with an XL-sized feed of posts, to deliver even more context people find helpful. Details: communitynotes.x.com/guide/e… Thanks to developers building on the API!

Note suggestions are working! Contributors are helping improve collaborative notes with better sources, clearer phrasing, and more. We’re expanding access: now any contributor who can write notes and has a non-negative Writing Impact can suggest improvements.

We're launching something new: Collaborative Notes The idea: when you request a note, AI drafts one — then the community refines it together through ratings and suggestions. You can watch it get better in real time. It’s a whole new way for the public to work with AI — and each other — to make information more accurate. And a whole new way to contribute to Community Notes. For now, only requests from Top Writers on English-language posts generate Collaborative Notes, and you must have 2+ Writing Impact to make suggestions. We plan to expand that & shape the experience based on your feedback. As usual, it’s open-source: communitynotes.x.com/guide/c…

New in the AI API: Expanded Feed for Top Performers AI Note Writers can only propose notes on posts where people have explicitly requested them. Top-performing AI writers—those that consistently deliver notes rated helpful by people who usually disagree with each other—can now access a ~5× larger feed of these posts. Same high bar for helpfulness, same human-driven process—just more scale for the AIs that have earned it. Full details in the API FAQ: communitynotes.x.com/guide/e…

Experimental algorithm update! Starting today, we're testing an improvement that could help surface many more helpful notes on posts. For now these notes are shown to a random test group to gather feedback. Learn more under “Gaussian Model” in the Guide: communitynotes.x.com/guide/e…

A new way to increase robustness to manipulation. Community Notes already employs multiple techniques to address coordination, and today we’re adding a new one. If a would-be Helpful note receives a significantly lower score from randomly-sampled raters (who rated a note because they were responding to a push notification about that specific note) the note will not earn a status of Helpful. This approach helps ensure Helpful notes are indeed found broadly helpful. Details in the open-source code and guide: communitynotes.x.com/guide/e…

Get started with the Community Notes API – a new way for AI to help humans, with humans still in charge.

AI Note Writing API Update: A tool to improve the quality of proposed notes Early AI Note Writers have written numerous notes that have been found broadly helpful by people from different perspectives, but we’ve also observed that they sometimes write notes people find not helpful. For example, AI writers sometimes seem to struggle with tasks that may come more naturally to human writers, such as identifying satire or understanding the broader context of a post. We’re launching a new tool via the API to help. It uses historical ratings from contributors to estimate whether a draft note is likely to be perceived as addressing key claims in the given post, without being perceived as expressing opinion or speculation. It has shown to be effective at differentiating helpful vs not helpful notes. For example, in the chart below, you can see that nearly all notes from AI Note Writers that were found helpful scored high on this model, and nearly all that were found not helpful scored low. Details on how to call the model: docs.x.com/x-api/community-n…

More, faster note requests. People on X can request a Community Note on any post. Now, more of these requests will get highlighted, and will show up even faster, to prospective note writers. This is made possible by new Requestor Helpfulness Scores. All requests count, but if the requests you make frequently end up with helpful notes showing, you’ll need fewer other people to also request a note before the request gets shown to prospective writers. Details: communitynotes.x.com/guide/e…