Stripe's OpenRouter talks 💰, ChatGPT Health ⚕️, why software factories fail 👨‍💻

Stripe is in talks to acquire OpenRouter, a startup that helps developers choose between AI models. The talks are still ongoing and could fall apart ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ 

Sign Up |Advertise|View Online TLDR TLDR 2026-07-24 📱 Big Tech & Startups Stripe in Talks to Buy Buzzy AI-Model Marketplace OpenRouter (3 minute read) Stripe is in talks to acquire OpenRouter, a startup that helps developers choose between AI models. The talks are still ongoing and could fall apart. Industry experts estimate that the business could fetch about $10 billion in a sale. Stripe is separately pursuing a deal for PayPal. OpenAI makes ChatGPT Health available to all US users (2 minute read) ChatGPT Health is now available to all US-based users over 18. The feature helps users with health-related queries. Users can let the feature access data from apps and integrate medical records from hospital systems. While several studies have found that AI bots are not reliable for medical advice, this has not deterred AI companies from launching health-related features. 🚀 Science & Futuristic Technology The Robots Cometh (20 minute read) Unitree's GD01 is a transformable mecha robot. It can transport a pilot in its torso-mounted cockpit, walk on either two legs or four, and wield fists powerful enough to knock down walls. Standing 9 ft tall and weighing half a ton, it has heavy-duty mechanical hinges that connect titanium-alloy limbs to a protective carbon fiber casing. Pictures of the robot are available in the article. SpaceX Is Turning Away Falcon Customers in Major Bet on Starship (2 minute read) SpaceX has started to turn away satellite operators seeking dedicated rides on its Falcon 9 rocket beyond 2028. The company has also stopped building some non-reusable components for the Falcon family. SpaceX has publicly stated that it intends to offramp its Falcon 9 rocket for Starship, but has not disclosed a timeline. The company is likely to still use the Falcon 9 for launches for the Department of Defense and NASA. 💻 Programming, Design & Data Science Engineer away the slop (2 minute read) The field of formal verification and deterministic system testing is about to cross a chasm. There are not enough skilled practitioners in the field. Bug-catching tools, when used in conjunction with adversarial code reviews by an LLM and with language analyzers driven by pre-commit hooks, will be a key component in software factories. They will enable people/agents to deliver reliable software without the burden of having to learn this specialized knowledge. Why Software Factories Fail (40 minute read) No amount of harness engineering or loopsmaxxing can solve what is fundamentally a model-training issue. Engineers are still stuck reading code. Companies can move 10x-100x faster by convincing themselves that the code doesn't matter anymore, but they could also embrace their constraints and just move 2x-3x faster, safely. 🎁 Miscellaneous TLDR is hiring a curator for TLDR Hardware! (TLDR Curator, ~3 hrs/week) 500,000 people have already signed up for TLDR Hardware, our new twice-weekly newsletter covering chips, robotics, energy, and devices. If you work in hardware and want to help curate it, send your LinkedIn or resume to hardware@tldr.tech! Frontier Diffusion & Control (3 minute read) Optimizing the cost-to-outcome frontier in real world context means using the right model for each task, and optimizing the context, skills, tools, and agent harness around it. It's possible to take saturated frontier capabilities and deliver them at scale and at lower cost through models optimized for high-usage products, while continuing to use frontier models for frontier needs. The model is only one part of the hill-climbing system. Harness, memory, context, tools, skills, and user interactions all shape the evals and performance of these agentic systems. Inside China's All-Out Push to Catch Up With American AI Chips (17 minute read) Huawei is leading the way in reducing China's dependence on foreign AI chips. The company claims it has figured out workarounds for making near state-of-the-art silicon without leading-edge machinery. Huawei's deputy chairman attributes the company's progress to the restrictions the US has imposed on hardware exports. China still lags far behind the US, and chip-production capacity problems are preventing Chinese companies from deploying AI as quickly as they would like. ⚡ Quick Links Google Study Says AI Is Helping Workers, Not Replacing Them (4 minute read) Google's research points to a future where the demand for highly skilled workers is accentuated rather than diminished. Canvas UI (GitHub Repo) Canvas UI is an open source library of creative, framework-agnostic components drawn on canvas. Frontier (3 minute read) The 'frontier' moniker justifies capital spending to investors, who believe that the spending is the moat. Everyone Should Know SIMD (14 minute read) SIMD is just about as easy as a for loop. How to become a 10x ramble-coder (9 minute read) Download a dictation app and start talking. Forgot your Google password? Now you can log in with a selfie (3 minute read) Google has added a new video selfie option for account recovery. Love TLDR? Tell your friends and get rewards! Share your referral link below with friends to get free TLDR swag! https://refer.tldr.tech/7c97ce4b/ Track your referrals here. Want to advertise in TLDR? 📰 If your company is interested in reaching an audience of tech executives, decision-makers and engineers, you may want to advertise with us. Want to work at TLDR? 💼 Apply here, create your own role or send a friend's resume to jobs@tldr.tech and get $1k if we hire them! TLDR is one of Inc.'s Best Bootstrapped businesses of 2025. If you have any comments or feedback, just respond to this email! Thanks for reading, Dan Ni & Stephen Flanders Manage your subscriptions to our other newsletters on tech, startups, and programming. Or if TLDR isn't for you, please unsubscribe.

Crude airline earnings

US airlines had an amazing quarter with sky-high demand. Then their fuel bill wiped it out.

(Stephan Zirwes/Getty Images) Hey Snackers, We here like to spend the weekend blowing off steam with our friends after a week of hard work at our desks. Turns out we’re not alone in that; a new study found multiple instances of groups of orcas getting together to ram into sunfish so hard that they explode. Yes, there is video. One orca holds the sunfish while another swims into it at high speed, causing the unfortunate 10-foot-long, 4,400-pound fish to explode. The orcas may be pulverizing the sunfish to quickly break it into bite sized pieces, but researchers also think that they might just be doing it for fun.  Brent crude futures closed over $100 for the first since late May as threats between the US, Iran, and Yemen’s Houthis escalated and stocks fell as megacap shares dropped in the wake of Alphabet and Tesla’s earnings announcements. The S&P 500 closed down 1.3% and the Nasdaq 100 slumped just under 1.2%.  FARES WELL? US airlines had an amazing quarter with sky-high demand. Then their fuel bill wiped it out. Flying this summer is expensive. Running an airline might be worse. American Airlines, Alaska Air, and Southwest all reported earnings this week and results show that they are paying a lot more to get those travelers off the ground. The war-driven spike in jet-fuel prices is swallowing much of the airlines’ profit driven by higher travel demand and ticket prices, turning what would otherwise have been strong quarters into shrinking profits, guidance cuts, and, in Alaska’s case, a $76 million loss.  American Airlines cut its full-year earnings outlook again on Thursday as higher fuel costs outweighed much of the benefit from stronger fares. The carrier posted a record $16.7 billion in quarterly revenue, up 16.3% from the same time last year, as its international and domestic demand remain strong.  American Airlines' fuel expense surged 83%, or more than $2.2 billion. The airline now expects full-year adjusted results somewhere between a loss of $0.65 cents a share and a profit of $0.65, cutting its previous range of a $0.40 loss to a $1.10 profit.  They’re not alone. Alaska Air grew revenue 10% to $4.1 billion, while premium, cargo, and corporate revenue all posted double-digit gains. But its fuel price soared 85% to $4.43 a gallon, adding $600 million in costs and helping swing the company from a $172 million profit last year to a $76 million loss. Southwest increased revenue by more than 16%. Still, its fuel bill rose by $889 million, knocking $1.17 off adjusted earnings per share and prompting the airline to lower its full-year profit forecast. Volatile fuel markets have been complicating ‌earnings forecasts for airlines, as renewed US-Iran tension clouds the outlook for oil and jet fuel costs. Brent crude, the key global benchmark, closed over $100 a barrel Thursday for the first time since late May after Yemen’s Houthis said they struck two Saudi oil tankers in the Red Sea, the Associated Press reported, widening concerns about disruptions to two major shipping routes. US crude climbed more than 5% to above $91 a barrel. THE TAKEAWAY Fuel is airlines’ biggest expense after labor, and this earnings season shows how quickly it can eat through the benefits of strong demand and higher fares. Major carriers are counting on some relief in the third quarter. But with Brent back over $100 in the wake of fresh attacks on oil tankers, those forecasts remain vulnerable to a conflict airlines have little control over. — Helena Cheng Snacks Shots 🏛️ 2026 Midterms: With just a few months to go until the midterm elections, markets are currently pricing in an 80% chance that Democrats retake the House of Representatives and just a 56% chance that Republicans maintain control of the Senate. 🎮 Gaming: Right now the game to beat for Game of the Year is the (hopefully launching 2026) “Grand Theft Auto VI” with a 65% chance of victory, but February’s “Resident Evil Requiem” and the buzzy September release “Control Resonant” have been rising steadily from a combined chance of 5% back in February up to a 21% combined chance now.  *Event contracts are offered through Robinhood Derivatives, LLC — probabilities referenced or sourced from KalshiEx LLC or ForecastEx LLC. What else we're Snackin' The Failure Gap: A 2026 research paper dives into how people regularly underestimate the probability of failure, including the rate of restaurant closures, TSA screening misses, and even the rate that sports teams lose.  What just happened to TheNumbers.com should worry us all: how AI scraping is killing independent websites. Wall Street is worried about Netflix's new shows. Its old ones are its secret weapon. Tesla falls 15%, Alphabet sinks 7% as AI spending concerns spook investors. Snack Fact of the Day At the height of the state’s homeowner insurance crisis, Florida was at one point responsible for 80% of homeowner lawsuits against insurance companies nationwide. Friday  American Express, NextEra Energy, Verizon earnings (before the bell) Craving more insights in your inbox? Subscribe to EntryPoint  and Scoreboard for quality reads. Sherwood Media, LLC produces fresh and unique perspectives on topical financial news and is a fully owned subsidiary of Robinhood Markets, Inc., and any views expressed here do not necessarily reflect the views of any other Robinhood affiliate... See more Sherwood Terms and Conditions Our Editorial Standards Contact Us Advertise With Us Unsubscribe Privacy Policy SHERWOOD MEDIA, LLC, 85 Willow Road, Menlo Park, CA 94025