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120 trending tweets • April 21, 2026 • Archived daily snapshot
Top Tech Twitter posts from April 21, 2026, ranked by engagement.
Codex hit 4M active users, less than two weeks after hitting 3M. We will reset rate limits today!
Ladies and gentlemen, today we're launching one of our biggest changes to 𝕏 Introducing Custom Timelines This feature allows you to pin a...
> Took 3 days off to go to best friend’s wedding > App is on fire Lesson learned: Never have friends
What makes ChatGPT Images 2.0 a state-of-the-art image generation model? Researchers behind the model explain. A thread: Thinking & Intell...
It feels pretty obvious at this point that someone’s going to make billions building a social app that’s just for friends, no AI slop, no br...
Deep Research and Deep Research Max are our latest autonomous research agents powered by Gemini 3.1 Pro. They can safely navigate both the ...
What does it take to run 3, 5, or even 10 concurrent instances of Gemma 4 locally? We've open-sourced a demo letting you run multiple model...
Demis Hassabis and Sebastian Mallaby were on stage in SF today and here are the 9 best things they said: 1. "There is a 50% chance that Ope...
We're partnering with SpaceX to improve Composer. http://cursor.com/blog/spacex-model-training
Introducing our biggest upgrades to the Deep Research API yet... including Deep Research Max (our SOTA system), MCP support, Native charts &...
I spent a lot of time bugging many companies about my keyboard problems. Framework listened. They built my dream keyboard. I am so excited...
Confirmed that Anthropic - as of now - has removed Claude Code from new Pro signups. This is what the pricing page looks like. Feels like A...
GPT-Image-2 is absolutely fucking insane. I added it as a tool that Agent-S can use, and it's now generating slide decks + apps that look l...
Claude Design surprised me. It's actually quite good. I hit some rough edges but I still think it is worth trying and thinking deeply about....
We've reduced memory crashes in the Cursor desktop application by 80% since February. Here's how we detect, debug, and prevent OOMs at scal...
This is so confusing. Did Anthropic really just drop Claude Code from their $20/month plan? Why would they do that through a pricing page u...
Overheard in Silicon Valley: “I am bullish AI capability so the consumer surplus is going to be insane. The power of gods given away below c...
Congrats to @FrameworkPuter for shipping the new F13 Pro with Panther Lake! I've had a unit for a while, and made sure that Omarchy works gr...
In collaboration with @github, @Microsoft, @npmjs, and @SocketSecurity, our security team has confirmed that no npm packages published by Ve...
Created a Codex Skill which pulls any asset from the internet using Serp API + Firecrawl API. Can one shot these moodboards that extracts ...
my waymo is stuck going round and round the roundabout
What 'advanced' AI coding techniques are you using? I.e. what do you feel like you've discovered that no-one else knows about yet?
Did you want a GBrain but didn't want to set up your own OpenClaw Clawputer is here to help you! https://opencomputer.dev/clawputer
two basic organizational architectures for agents: 1. everyone has their own agent—this means agents are specialized for the specific tasks...
You can now scale depth as well as width with subagents! Just uncapped Hermes Agents' sub-agent spawn width, and enabled spawn depth so sub...
AI is sycophantic by nature. If you assert something, it will tend to agree. "...there aren't a lot of parallels. Am I right?" AI will say...
I have been using GPT ImageGen-2 for the past weeks I didn't think that better image-generators would be a big deal but it turns out that t...
anthropic comes for figma. openai comes for canva.
If you’re not already using Gems to optimize your workflow in Gemini, it’s time to start. Gems allow you to quickly reuse a prompt and add...
Claude design is cool but nobody is talking about how Gemini 3.1 Pro is a beast at motion design Only one prompt to turn an HTML into motio...
gpt-image-2 is now available in the Canvas view in T3 Chat. Still by far my favorite way to do image gen, I use it every day. Excited to hav...
The battle for the SuperApp: > SpaceX + Cursor > Meta + Manus > OpenAI Codex > Claude Desktop > Google Something...
If you've never coded in your life you can download Claude Code right now and by the end of the night have a full revenue generating app 99...
Congrats to @boltohq on their $12M Series A! They're building the first AI-native HR platform that brings full-cycle recruiting, payroll, ...
something ppl forget when they’re speaking publicly whether in interviews, podcasts, anything broadcast is to slow down. you basically need ...
You can now selectively apply a preset. Say someone shares a preset with you and you already have your own components, but you like the th...
This Omacon keynote celebrates computers as more than just tools, but as beautiful, bespoke, and malleable objects. We have such a rich heri...
I hear gpt 5.5 is going to drop today. Lets see. Hermes will be ready for intake 🤗
Looks like the $20/mo plan no longer include Claude Code. Smallest plan is now $100/mo
Replit for Startups is live. Up to $25K in credits to build your product, ship fast, and scale. If you're building on Replit, this is for y...
Do vibe coding tools (v0, Lovable, Replit) have any use for real engineers? Definitely - fast-iterating prototypes ALWAYS have a place in t...
Bloomberg's @markgurman, who got the scoop on John Ternus's new gig as Apple CEO, explains why he thinks Ternus will do "a hell of a job" in...
I came up with a somewhat foolish new benchmark for testing image generation models, to exercise the new ChatGPT Images 2.0: "Do a where's ...
5 people have joined the Cursor team through our community programs (so far!) Underrated way to get your foot in the door.
the fact that Kimi K2.6 (Chinese model) writes better english than Gemini and ChatGPT should be a wake-up call
Grok's new Speech to Text model is SO CHEAP and SO ACCURATE 50¢ to transcribe our last 150 videos. We said AI 1,053 times
Claude Opus 4.7 with adaptive thinking via the API... am I missing something or is it not possible any more to force it to think? (Prompt h...
Can we appreciate how incredible it is to see the dev tools market fully disrupted so rapidly Pre-2022, the leading players were Microsoft...
25 world-class AI products, free for a full year I've partnered with @Cursor_ai, @GoogleAI, @NotionHQ, @Fin_ai, @Supabase, and @Gumloop to ...
the next email client won't market itself as email. the next calendar won't market itself as a calendar. the next messenger won't ask you to...
I have interviewed 1,000 CEOs of the largest companies over the last 10 years. Adam Foroughi is top 5 I have ever met. Easily. AppLovin ...
Tomorrow on The Pragmatic Engineer Podcast: Designing Data Intensive Applications with Martin Kleppmann
OpenClaw 2026.4.20 🦞 🧠 Kimi K2.6 support + provider-aware /think 💬 BlueBubbles iMessage sends + tapbacks fixed ⏰ Cron state/delivery cle...
BREAKING: @tkkong & @philhchen emerge from stealth with personalized AI coworkers
Apple just named its next CEO. He doesn’t have a LinkedIn profile picture. Because he’s never job searched. John Ternus joined Apple in Jul...
The next release of Paperclip will try harder to complete the work I've had an agent running for 12+ hours now grinding on a difficult task...
“Farza drives a type of FOMO that makes you feel like he’s going to be successful with or without you, so you might as well join him for the...
My next guest Ryan (VP @mercury) 2x'd his productivity by building a second brain in Claude Code trained on 5 years of work history. It run...
Hearing stories from inside several tech companies that token spend is MUCH higher than forecasted, and 📈 If you're in this situation, wha...
Have you ever felt like you have more agents/AI tools than you have work for them to do
i'm not even hyped by new models anymore... because yeah, benchmarks will get crushed and video generation will be insane, but the real evo...
ai collapses switching & building costs for ~single player comprehension bound software to effectively zero. if there is a publicly traded ...
ecommerce is one of the best niches to sell AI and if you've done dropshipping or any ecom in the past, you literally cannot fail think abo...
Bloomberg's @markgurman says he's aware of an ongoing internal humanoid project at Apple. "They're exploring humanoids. They're not working...
Crazy how costly flaky tests are now They went from 'survivable but annoying' to 'FIX NOW AT ALL COSTS'
The Pentagon's Departmental Autonomous Warfighting Group (DAWG) was formed late last year with a $225 million budget. For 2027 they are requ...
As agentic workloads expand, the best orchestration hybridizes centralized servers and CPUs for the ultimate continuity. Especially when you...
Your company should not be using LLM’s. It should be using a proprietary small language models purpose built for your org. “own your intell...
Opening 100 more alpha spots for http://agent-s.app. First come, first serve. This agent is just insanely powerful. And so damn easy to use...
With so many amazing Agents Week announcements, we needed an automated way to generate promo videos for each one. Here’s how we did it w...
Kimi 2.6 Thinking seems very good for an open weights model, but many rough edges compared to closed SoTA. The Lem Test resulted in a 74 pa...
We’re building a new course with @CopilotKit! It focuses on turning agents into real applications, so instead of plain text, they can retur...
Matforge (@matforge_) is building AI scientists to discover new materials for the semiconductor industry. The semiconductor industry needs...
I wrote my friend @chrysb a quick note on how to implement GBrain style migrations for people who upgrade to new GBrain versions and want th...
IMO, it’s smart for Apple to make their hardware chief the next CEO Post-AI, Apple’s advantage is their devices (phone, watch, laptop, AirP...
I feel like Codex's gap in frontend design skills can be easily made up if you use an AI design tool. My favorite is @tomkrcha's Pencil
We are back with the second installment of our AI evaluations guide → https://goo.gle/4tOVshb Today, Maud Nalpas guides you through transit...
Spent 3 nights in a row running my agents this shit is a drug.
The best early-stage startup investment isn't actually the startup. It's the founder. When @joshua_sirota came through the @launch accelera...
The only thing more fun than coding with agents is designing with agents
Publish an app in one click 💻
We're honored to be named Google Cloud's 2026 AI Tooling Partner of the Year. This recognition reflects what 50 million builders have made ...
two of my favorite tech analysts coming to fairly different conclusions on tim cook's reign. Ben Thompson: basically, Cook is an operation...
American manufacturers waste billions on staff keying orders, building quotes, and chasing invoices. @Arzana_AI's agents plug into your em...
Thanks to our friends at @intel for squeezing everything out of the custom kernel we're shipping for Panther Lake systems in Omarchy. I jus...
This is now the #1 trending fine-tune of Qwen 3.6 35B on Hugging Face. 🔥 It's fine-tuned on Claude Opus 4.6 distilled reasoning traces to c...
We just sent our largest distribution to Weekend Fund LPs to date. Fund I is now 5x DPI and 14x TVPI. Credit to the founders and team tha...
Me: Why do you want to leave [FAANG] to work at Memelord? Engineer: There's so much red tape. Like it takes 30 people to launch something. ...
Airtable's @howietl says that over 70% of Airtable's enterprise accounts, including ones that are $5M+ in revenue, originated from teams wit...
🚨 Do you understand what’s happening?! > Lovable just got valued at $6.6 billion and a guy with a free account read another user's source ...
this clip of @ShaanVP convinced me to get my own yacht the concept: before you commit to a new relationship (business or personal) you typi...
Nano Banana brought 10M new users to Gemini and powered 200M edits in weeks. The 3D figurine craze ran on it. That single image model became...
Airtable's @howietl says that basically everyone will need to graduate from being ICs to ICs that manage teams of 20-30 agents: "The best d...
20+ announcements. One week. Cloudflare's first Agents Week. Email, artifacts, agent memory, sandboxes, and more — and why agents need diffe...
Rakuten ships biweekly now. Used to be quarterly. They did it with one Claude Managed Agent per department. Full PM playbook for all 3 of ...
This is wild. SpaceX now has the right to BUY Cursor for $60B. Or pay them $10 billion to walk away. To put it in perspective, Cursor was w...
Interrupt is 3 weeks away really excited for our 2nd agent conference. great lineup including @AndrewYNg, @Cisco, @box, @clay, @MongoDB, + ...
anyone have a better mobile wifi setup than iphone hotspot? should i just carry around @Starlink with me.. need fast upload/download for b...
Google built SynthID to invisibly watermark every image Gemini produces. One engineer cracked it with 200 black images and a Fourier transfo...
For decades, drug discovery has shifted away from nature and toward biology-first approaches. @viswacolluru believes that shift was a catast...
Twitter trends by date use UTC day boundaries. This archive highlights the top Tech Twitter posts from April 21, 2026, ranked by weighted engagement across likes, reposts, replies, and bookmarks.