James Altucher:

Anthropic Is Releasing a Public Version of Its Mythos AI Model As Claude Fable 5

Anthropic launched Claude Fable 5 on Tuesday, a publicly available version of its Mythos-class AI model that the company has been restricting to a small group of cybersecurity partners since April.

Rather than a separate architecture, Fable 5 runs on the same foundation as Mythos 5, with added classifiers that intercept and block outputs touching high-risk domains – cybersecurity, biology and chemistry, and prompts Anthropic identifies as attempts to extract model capabilities for use in rival AI systems.

Queries that trip those classifiers are handed off to Claude Opus 4.8, a lower-capability model, rather than answered by Fable 5 directly. According to Anthropic, the handoff to Opus 4.8 is uncommon, with the vast majority of Fable 5 sessions – more than 95%, by early data – handled entirely by Fable 5 itself.

Separately, Anthropic made Claude Mythos 5 available Tuesday to the set of organizations that had previously cleared its approval process for Mythos access. It is the same model as Fable 5 but with cybersecurity safeguards lifted in some areas. Mythos 5 will initially be deployed through Project Glasswing, in collaboration with the U.S. government, as an upgrade to Claude Mythos Preview.

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Ray Blanco:

China Turns on the World’s First Underwater Data Center

We’ve already managed to cause ocean temperatures to rise by burning fossil fuels. Now we’ve figured out a more direct way to do it: dipping our heat-generating data centers directly in the water. China officially turned on the world’s first underwater data center this week.

The project is the work of HiCloud Technology and China Communications Construction and is located about six miles off the coast of Shanghai’s Lin-gang Special Area, a region that has been designated for high-tech projects and manufacturing.

The data center, which cost about $226 million to build, sits about 30 feet below the surface of the ocean. It’s also really more of a proof-of-concept project than a meaningful addition to the country’s capacity, as its capacity maxes out at 24 megawatts – significantly smaller than the gigawatt facilities that are being built elsewhere to support the growing demands of artificial intelligence.

According to the Chinese government, the data center will reduce power consumption by about one-fifth compared to data centers on land. That’s because it is pulling most of its power from an offshore wind farm and is using the natural cooling effects of being submerged in the ocean to counteract some of the typical cooling needs that data centers have.

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Greg Guenthner:

BTC ETFs Just Bled $4.4B, So Why Is Wall Street Already Buying Back In?

U.S. spot Bitcoin ETF products just ended a record 13-day outflow streak on June 4, 2026, after hemorrhaging $4.4 billion, the longest sustained redemption run since these funds launched in January 2024.

BlackRock’s IBIT led the reversal, pulling in $47.66 million to produce a net inflow of $3.05 million across the complex – less than 0.1% of what left during the outflow streak. Bitcoin price at the time sat at $61,303, down 51.5% from its all-time high of $126,173 set on October 6, 2025.

Strategy Executive Chairman Michael Saylor framed the outflow as "a capital rotation", not a retreat. While Bitcoin bled, other corners of institutional crypto saw fresh money arrive.

The macro backdrop explains the timing. Strong U.S. jobs data and rising bond yields through May rekindled higher-for-longer rate fears, making risk assets broadly less attractive.

The AI infrastructure buildout, absorbing an estimated $400 billion in capital markets funding over just six months, competed directly for the same institutional dollars that might otherwise have entered Wall Street crypto vehicles. Bitcoin, as the largest and most liquid crypto target, became the easiest position to trim.

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