TLDR 2026-06-19

The hidden cost of banking* isn't fees. It's navigating all your tabs and dashboards. (Sponsor)

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*Mercury is a fintech company, not an FDIC-insured bank. Banking services provided through Choice Financial Group and Column N.A., Members FDIC.

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Big Tech & Startups

AI Startup Midjourney Pivots to Health With Ultrasound Machine (2 minute read)

AI startup Midjourney has announced a hardware project in the personal health and medical sector. Its full-body ultrasound machine, the Midjourney Scanner, requires users to be partially submerged in water. The company plans to build a fleet of 50,000 scanners, with the first to debut in a 'Midjourney Spa' location in San Francisco. The scanners don't use any AI. Midjourney is currently working on four hardware and four software initiatives and plans to ship at least two of those hardware efforts in the near term.

Amazon hopes to challenge Nvidia more directly by selling its AI chips (2 minute read)

AWS is in talks to sell its Trainium AI chips to other companies for use in data centers. The company has so far resisted selling its chips as compute capacity for the current chips in its data centers is already sold out. Selling its chips to other companies may mean current customers will be left waiting, unless AWS has figured out how to manufacture more chips, which is unlikely.

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Science & Futuristic Technology

NASA picks Eric Schmidt's rocket company for Mars mission, setting up a race with SpaceX (3 minute read)

NASA has hired Relativity Space to build a spacecraft to house a suite of scientific instruments, launch it into space, and fly it to Mars. The Aeolus mission will contain four instruments to measure and image Mars from orbit. It will provide the space agency with its first daily global view of dust, winds, and temperatures in Mars' atmosphere. The data will make it safer for landers and astronauts to visit the surface of the planet. The mission is set to launch in 2028.

How Meter Pricing Is Testing the Economics of AI (11 minute read)

A growing number of tech firms have started introducing usage-based pricing options for AI services rather than charging a flat subscription fee. The shift to this pricing model may lead to more selective use of the technology. It has forced businesses to confront their spending on AI and take stock of the return on that investment.

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Programming, Design & Data Science

Agents breaking on real websites? See how Browserbase runs 35M+ sessions a month (Sponsor)

Sites block, change, and CAPTCHA your agent until it stalls. Browserbase puts a real browser behind it so it can log in, navigate, and act on any site. It's self-healing when pages change and scales to thousands of concurrent sessions. Used by 10K+ teams, including Ramp, Lovable, and Deepmind. Get an API key now or talk to an engineer.

The Agent Loop Architecture (18 minute read)

Durability is a property of the entire execution layer underneath a loop. Durable orchestration is fundamental to building an agent loop architecture. This article breaks down the agent loop architecture. It explains where loops commonly break, what happens when things break, how to build an agent that builds its own skills, and more.

Clear (Website)

Clear is a programming language where the specification and implementation are in the same file. There's no translation step or drift between docs and behavior as they are the same artifact. Clear is built for agents to read and execute while being readable by everyone on the team. It compiles to any target without any change in the spec.

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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 !

Intel Shares Surge After Trump Announces Apple Partnership (3 minute read)

Intel shares jumped after President Donald Trump and Apple announced an agreement to work with the company to design and build chips in the US. Intel was underperforming for years until Lip-Bu Tan became CEO in March 2025. Trump initially raised concerns about Tan's potential close ties to China, but Tan's charm won him over. Intel has since received a lot of help from the Trump administration.

America Is Headed Toward the Infinite Workweek (4 minute read)

Coding agents, in theory, should free up time, allowing for larger blocks of deep work and rest. However, some developers are having the opposite experience. Agents can do more work, but they still need human oversight. Left unsupervised, they could potentially make a huge mess. Having an army of agents running simultaneously means there's no time for breaks.

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Quick Links

Get up to $1500 of Inference on Opus and GPT with Pioneer (Sponsor)

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The value of employee equity depends a lot on volatility (2 minute read)

Standard vesting gives employees an embedded call option on startup equity that's worth multiple times more than what investors are willing to pay for.

Meta executive leading internal AI overhaul departs after two months (4 minute read)

Emily Dalton Smith will continue to stay on to work with Andrew Bosworth until the handover to a replacement is complete.

A bold satellite rescue mission came together in record time, but will it work? (13 minute read)

Katalyst's spacecraft will attach to the Swift satellite, latch onto it, then boost its orbit back to a safe operating altitude.

Reach 7 million engaged tech professionals (Sponsor)

Ads get ignored on social media but not in TLDR! Reach developers, PMs, marketers, founders and other tech leaders where they actually pay attention. Learn more about sponsorship opportunities.

Why the Human Genome's Tangled Physicality May Confound AI (21 minute read)

The human genome might not submit to the kind of straightforward input-output approach that such AI models ultimately assume because the genome isn't a blueprint or algorithm.

Gemma 4 in your browser (Website)

Gemma 4 E2B (QAT Mobile) runs fully on-device with WebGPU.

Open Source vs the Invisible Hand (6 minute read)

The economics of open source don't add up.

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Dan Ni & Stephen Flanders

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Midjourney Scanner 🏥, AWS vs Nvidia ⚡, agent loop architecture 👨‍💻