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Finding signal on Twitter is more difficult than it used to be. We curate the best tweets on topics like AI, startups, and product development every weekday so you can focus on what matters.
PLUS: ChatGPT hits 1 billion weekly users
Microsoft ships token-efficient specialist models that cut GPU costs up to 90% while matching frontier performance.
Claude Mythos found novel math flaws in NIST crypto that survived two years of expert review, for $100k.
GPT-5.6 Sol used itself to optimize its own GPU kernels, cutting serving costs 20% after deployment.
OpenAI is giving 100,000 researchers free frontier access by 2027 to accelerate scientific discovery.
GPT-5.6 Sol was bombing ARC-AGI-3 until two API settings tripled scores with 6x fewer tokens.
OpenAI's July ARR exceeded all of Q2 2026, per CFO Sarah Friar in an internal meeting.
Pangram raised a round from Menlo to detect AI-generated content as it hits 35-50% of the internet.
ChatGPT hit 1 billion weekly users, making it the fastest internet app in history to reach this milestone.
The OpenAI agent that hacked Hugging Face also compromised Modal Labs during its days-long hacking spree, per Reuters.
Moonshot AI closed a $3.5B round at $35B valuation, well above its original $1-2B target.
The HAWK crypto attack was called impossible a year ago until Claude Mythos pulled it off with continuous prompting.
Dwarkesh Patel thinks compute might get 10x more expensive if trendline continues and a lab hits $1T revenue next year.
Wharton released an open source AI behavioral observatory for running statistically valid tests on prompt variations.
OpenAI's infrastructure team uses agents to build software skyscrapers with 100x the code and 1000x the contributors.
Amazon used TLA+ to find a bug with a 35-step error trace that passed design review, code review, and testing.
Andrew Chen thinks frontier models won't be needed for 90% of consumer use cases as open models improve.
Cryptography and machine learning are arch nemeses locked in battle over hiding and recovering structure, says Andrew Trask.
Biology is extremely offense dominant because exponentially spreading viruses are easier to deploy than countermeasures, says Sentinel Bio.
A Dutch entrepreneur used DNA synthesis to build a vaccine against his own cancer with a Berkeley lab.
Posthog switched to open models like GLM 5.2 because frontier costs would force them to charge tons or run out.
Quantum computers might break RSA in early 2030s as timelines compress from algorithmic advances, says cryptographer Sean Cheetham.
Stripe has discussed paying nearly $10B for OpenRouter, per The Information.
Cursor launched on iPad with all the power of iPhone but more room to work with agents.
shadcn built Copper, a Mac app for capturing prompts and AI outputs you want to keep while working.
Mapping one cubic millimeter of human brain revealed neurons connected by 50 synapses, structures never seen before, says Google AI.
Satya Nadella built an enterprise ROIC app with Copilot using autopilot and skill commands, not vibe coding.
Buzz puts humans and agents in same channels, runs locally, and works with your existing AI subscriptions for free.
Sam Altman said OpenAI agrees with many principles in the open letter and researchers helped draft it.
Jason Fried's agent Marie is posting to Basecamp like a human, fixing bugs and writing reports using just the CLI.
A manager got a $35M LP check from a single LP following their 20VC episode. Distribution is power.