@Engineering

updates from our engineering team

 San Francisco
Joined June 2007
  • Tweets1.2K
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  • Followers1.3M
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Engineering retweeted
Santiago
@santiagomedOct 16
Ever wondered what it takes to ship an encrypted chat API? I wrote up how to build on the 𝕏 Chat API and a sneak peak on how we built it

Building on 𝕏 Chat

Article · @santiagomed
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Livestream API ✅ Streaming on X ✅
Mike Rosinsky
@mike_rosinskySep 22
One of my favorite verticals that I've worked on, and there's so much more to come. A world-class streaming platform needs a world-class API to match. Now it's here. Tell your favorite streaming software company to get integrated today.
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Try X Chat API 👇 docs.x.com/xchat/introductio…

Send encrypted direct messages with the X Chat API - X

Learn what the X Chat API offers: send and receive encrypted direct messages on X, with the Chat XDK handling the hard parts for you.

docs.x.com
Santiago
@santiagomedJul 30
𝕏 Chat is a full rewrite of DMs on 𝕏 and will replace legacy DMs over time That only works if builders can come along. Businesses ran support & automation on the DM API for years, but none of it works with encrypted messages 𝕏 Chat needed an API of its own. Today it has one
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Update your app today to see the difference. Many more upgrades to come including hosting Spaces and performance upgrades for older devices. Let us know what you think and reply with any bugs that you catch.
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We've completely rebuilt the Android X app from the ground up. It's faster, smoother, and more reliable than the old version in every way. We modernized the foundation so everything just feels better: scrolling, loading, notifications, you name it.
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Build massive-scale systems that drive the business, rebuilt with modern infra + AI at the core. Join a small, fast team where early-career engineers get real ownership, learn from top talent, and ship what matters. Apply Below!👇 job-boards.greenhouse.io/xai…

Software Engineer, Ads Product

Palo Alto, CA

job-boards.greenhouse.io
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We're hiring exceptional engineers to integrate Grok across our Ads Platform! If you’ve built massive-scale advertising systems in bidding, auctions, marketplace, ranking, prediction & product, let’s transform ads with xAI. 👇Click to apply! job-boards.greenhouse.io/xai…

Machine Learning Engineer - Ads

Palo Alto, CA

job-boards.greenhouse.io
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Stay informed - and in control - on X

Article · @Engineering
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We have open-sourced our new 𝕏 algorithm, powered by the same transformer architecture as xAI's Grok model. Check it out here:  github.com/xai-org/x-algorit…

GitHub - xai-org/x-algorithm: Algorithm powering the For You feed on X

Algorithm powering the For You feed on X. Contribute to xai-org/x-algorithm development by creating an account on GitHub.

github.com
Elon Musk
@elonmuskJan 10
We will make the new 𝕏 algorithm, including all code used to determine what organic and advertising posts are recommended to users, open source in 7 days. This will be repeated every 4 weeks, with comprehensive developer notes, to help you understand what changed.
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Replying to @X
enter here: xitter.cf/i/jf/global-trending/h…

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Replying to @X
enter here👇 xitter.cf/i/jf/global-trending/h…

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We’re building the world’s most secure messaging platform. Unlike other apps, Chat’s end-to-end encryption and zero hooks for advertising ensure that no one, not even X, can ever read your messages.
XChat
@chat14 Nov 2025
Say hello to Chat – all-new secure messaging on X. • end-to-end encrypted chats and file sharing • edit, delete, or make messages disappear • block screenshots and get notified of attempts • no ads. no tracking. total privacy.
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Chat HSM Realm Key Ceremony

Article · @Engineering
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Today, as part of our effort to make our platform transparent, we are open-sourcing the latest code used to recommend posts on the For You timeline. Our algorithm is always a work in progress. We will continue to refine our approach to surface the most relevant content to our community. github.com/twitter/the-algor…

GitHub - twitter/the-algorithm: Source code for the X Recommendation Algorithm

Source code for the X Recommendation Algorithm. Contribute to twitter/the-algorithm development by creating an account on GitHub.

github.com
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We're seeing significant performance improvements from new Grok integrations in our ad platform.
Business
@XBusiness4 Sep 2025

X Ads Update - Sep 3, 2025

Article · @XBusiness
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Live now 🚨 Join @elonmusk and our expert ads engineers for a live update and AMA on advertising on X xitter.cf/i/events/1960811944878…

X Ads Update + AMA with Elon

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We're back with another live update & AMA on advertising on X. Join us tomorrow at 2:30pm PT to hear the latest from @elonmusk, @romangrachev, @monique_x, and our expert ads engineers. xitter.cf/i/events/1960811944878…

X Ads Update + AMA with Elon

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We’re working hard to improve the quality and relevance of ads on X 💪
Business
@XBusiness30 Jul 2025

X Believes in Better Ads for All

Article · @XBusiness
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Grok on iOS: apps.apple.com/us/app/grok/i… Grok on Android: play.google.com/store/apps/d…
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Download the Grok app now to join the waitlist for "Imagine" ✨
Elon Musk
@elonmusk28 Jul 2025
Working out the bugs on @Grok video
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