The Daily Index — Friday, May 23, 2025 · TLDR Index

Across today’s newsletters

Today’s Index

TLDR

WHAT SAM ALTMAN TOLD OPENAI ABOUT THE SECRET DEVICE HE'S MAKING WITH JONY IVE

OpenAI plans to ship 100 million AI 'companions' that will be capable of being fully aware of users' surroundings and lives. The company aims to create a third core device for people to use on a desk after a computer and mobile device. The device will be unobtrusive and be able to rest in one's pocket or desk. It won't be a phone - one of the design goals is to help wean users from screens.

links.tldrnewsletter.com · 5 min

TLDR AI

ANTHROPIC CLAUDE 4

Anthropic has launched Claude Opus 4 and Claude Sonnet 4, setting new standards for coding, advanced reasoning, and AI Agents. The new models are designed for complex, long-running tasks that can run for hours. Anthropic claims they are the most capable coding models yet.

anthropic.com · 5 min

TLDR Web Dev

LOADING PYDANTIC MODELS FROM JSON WITHOUT RUNNING OUT OF MEMORY

Memory usage can become a significant bottleneck when working with large JSON files and Pydantic. The default Pydantic JSON loading method can result in a 20x memory multiplier, making it impractical for large files. To reduce memory consumption, it's better to instead use ijson, an incremental JSON parser, to stream the JSON data instead of loading it all at once.

pythonspeed.com · 5 min

TLDR InfoSec

HACK OF CONTRACTOR WAS AT ROOT OF MASSIVE FEDERAL BREACH

Opexus, which provides software services for processing US government records, was compromised by two employees in an insider threat attack. The two brothers at the center of the breach had destroyed more than 330 databases and removed more than 1,800 files related to one government project. The FBI and other government agencies are investigating the incident.

insurancejournal.com · 5 min

TLDR Crypto

BITCOIN HITS NEW RECORD HIGH, SURGING TO $109.4K

Driven by a 46% rally since April's dip and $3.6 billion of net inflows into spot Bitcoin ETFs in May, Bitcoin surged to a new all-time high above $109,400, eclipsing the previous peak set on January 20. Major treasury firms, including Michael Saylor's Strategy and Twenty One Capital, further fueled demand, while favorable regulatory developments, such as a U.S. Senate stablecoin bill and state-level crypto legislation, lent legitimacy to digital assets. Analysts point to stablecoin flows, positive financial conditions, and reduced speculative frenzy as signs that this rally rests on stronger foundations than past highs.

coindesk.com · 6 min

TLDR

ANTHROPIC LAUNCHES CLAUDE 4, ITS MOST POWERFUL AI MODEL YET

Anthropic has launched Claude 4, a new group of artificial intelligence models. The company claims that Claude Opus 4 and Claude Sonnet 4 define a new standard when it comes to AI agents. The models can analyze thousands of data sources, execute long-running tasks, write human-quality content, and perform complex actions. Both models can search the web to complete tasks and alternate between reasoning and tool use.

cnbc.com · 4 min

TLDR

EXCLUSIVE LOOK AT THE CREATION OF HIGH NA, ASML'S NEW $400 MILLION CHIPMAKING COLOSSUS

High NA, which stands for high numerical aperture, is the world's most advanced and expensive chipmaking machine. Costing more than $400 million, the machine took ASML nearly a decade to develop. It is made up of four modules that are manufactured around the world and assembled in the Netherlands. Only five of the colossal machines have ever been shipped. This article takes a look at High NA, how ASML plans to deploy the technology, the benefits that High NA provides, how the technology works, the effects that China, tariffs, and US growth will have on the technology, and more. A link to a video showing High NA in action is available at the end of the article.

cnbc.com · 13 min

TLDR

WORLD'S TALLEST 3D-PRINTED BUILDING REACHES A HEIGHT OF 100 FEET

The Tor Alva, the world's tallest 3D-printed building, has been completed in Switzerland. The structure, which the creators liken to an 'ornate layered cake', sits at an impressive height of 30 meters. It is located in a village that's currently home to just 11 people. The building took around 900 hours of printing to complete using two construction robots: a 3D printer and a machine used to add steel reinforcement. Pictures of Tor Alva are available in the article.

newatlas.com · 3 min

TLDR

NEW CAPABILITIES FOR BUILDING AGENTS ON THE ANTHROPIC API

Anthropic has announced four new capabilities on its API that enable developers to build more powerful AI agents. The code execution tool, MCP connector, Files API, and ability to cache prompts for up to an hour will enable developers to build agents that execute code for advanced data analysis, connect to external systems through MCP servers, store and access files efficiently across sessions, and maintain context for up to 60 minutes without building custom infrastructure. All of the features are now available in public beta on the Anthropic API.

anthropic.com · 4 min