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16 trending tweets • January 21, 2026 • Archived daily snapshot
Top Tech Twitter posts from January 21, 2026, ranked by engagement.
We’re launching full-length, on demand practice exams for standardized tests in @GeminiApp, starting with the SAT, available now at no cost....
We’re publishing a new constitution for Claude. The constitution is a detailed description of our vision for Claude’s behavior and values. ...
Neynar is acquiring Farcaster. Over the next few weeks, we’ll transfer ownership of the protocol contracts and code repositories, the Farca...
compound-engineering v2.27.0 is out! Big shoutout to our community contributors: → tmchow - interactive Q&A for plans + incremental commits...
Introducing Image to Video for Gen-4.5, the world's best video model. Built for longer stories. Precise camera control. Coherent narratives...
I'm late in knowing this.. If you're a Claude Max user, you can give a free week of cc to friends Spread the love
Stoked to announce the @a16z New Media Fellows! Some people have nicknamed this “the Thiel Fellowship for the terminally online.” True to ...
The sweet spot for present-day AI seems to be projects that were constrained by the rate at which humans could produce text. That's why it w...
The hardest part used to be writing code. Now it’s getting noticed. Distribution is the new skill.
Today @tinylaunch hit 100,000 unique visitors (all-time) Started in December 2024, it's been a bumpy ride. But I feel so great about the fu...
What are you marketing???? Reply with your brand and I'll make you a free meme for you to use in your ads or socials: (Proof you can make ...
Look at these top replies — @usemonologue, which has raised $0 and is run by ONE PERSON (@naveennaidu_m) inside of @every is recommended ove...
Instagram see individual follower engagement metrics
Will AI take creative jobs? A lead designer at Cisco weighs in
YouTube TV’s multiview is getting a huge upgrade, letting viewers mix and match channels
v0 Studio opens next Thursday at Verjus in San Francisco. Join us for a full day of building with the new v0 alongside the @Vercel team. I...
Twitter trends by date use UTC day boundaries. This archive highlights the top Tech Twitter posts from January 21, 2026, ranked by weighted engagement across likes, reposts, replies, and bookmarks.