Claude Fable 5.2 runs faster for less, a number plate unlocks cars, and a $385 Raspberry Pi

On Monday's Hacker News front page, Anthropic shipped Claude Fable 5.2. It writes up to 30 percent faster than Fable 5.1, it costs less, and it was in Claude Code on launch day. Claude Mythos 5.2 is the same model. Fable's safeguards block most security work, so Mythos is the version for security and life-science teams that apply and get approved.

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Claude Fable 5.2 runs up to 30% faster than 5.1, for less

Mythos 5.2 is the same model with lighter safeguards, for approved security and life-science teams

At high effort, Fable 5.2 writes code changes that open-source maintainers would merge about as often as Opus 5.5 does at its best, for roughly half the cost per task. Tokens run 8 dollars per million in and 40 out, and fast mode doubles that for up to two and a half times the speed.

Most coding work still belongs on Opus 5.5, with a move up to Fable when the job needs it. In the thread, postalcoder, who has been using Fable 5.2, finds the gap only shows when the prompt asks for something much more ambitious. A thousand Fable 5.2 agents formalized the proof of Fermat's Last Theorem in 30 hours, where Opus 5.5 got about a quarter of the way in 18 hours. I would keep Opus 5.5 as the daily driver and give Fable 5.2 the jobs that run for hours.

The Postal Service now offers official ZIP Code boundaries as map polygons, drawn from its own delivery addresses and updated four times a year. A licence for internal use costs 10,000 dollars a year, and it forbids passing the data on. showerst points to the Census Bureau's ZIP code areas, which are free and close enough for most maps. And mzagaja reminds everyone that a ZIP Code is a set of delivery routes, so a point inside the polygon can still carry a different code.

Security researchers Shubham Shah and Sam Curry could unlock any of one automaker's connected cars in Australia from its number plate alone. The plate gives up the vehicle number, an admin tool left on the internet maps that to the owner's account, and a vendor JavaScript bundle carried admin credentials for the identity server. From there they reset the owner's password, skipped the second login step, and sent the app's own unlock command. They tested only on cars they owned or had permission to use.

The firewall blocked the first path prefix they tried, and they assumed it blocked them all. GPT 5.6 Sol Ultra spent six hours on the identity server's source and found a prefix the firewall had left open. A harder chain reached the automaker's cars in the United States and Canada, and the companies fixed it about two hours after the report. In the thread, maistho asks why the car obeys the server at all: pair a key with the car once, and have it accept only commands signed with that key.

The Raspberry Pi 5 with 16 gigabytes of memory now costs 385 dollars. That is 80 dollars more than after the April increase, and more than three times its launch price less than two years ago. Memory prices are behind it, and Micron expects the shortage to last until at least 2028. In the thread, Aurornis says most hobby projects run fine on the 4 or 8 gigabyte boards. For a small home server, I would buy a secondhand mini PC for that money, and keep the Pi for projects that need its GPIO pins.