An Unreleased Anthropic Model Made Real Progress on the Riemann Hypothesis
60 subagents, 650 ideas, 31 million tokens — and a genuine step forward on a 150-year-old math problem. It's not solved, but the story behind it is the good part.
Claude's Watermark Is Upsetting People — Mostly the Ones Who Might Get Caught
Anthropic barely started marking Claude's text before the outrage boiled over on Reddit. The complaint: the watermark catches the wrong people. The replies from other users are sharp — and pretty much on point.
How Researchers Stole the Encrypted Reasoning Traces From Claude and Friends
A paper reveals a sneaky trick: feed the encrypted thinking traces from Claude, GPT or Gemini into a weaker sibling model, and it happily prints them back in plain text. Haiku 4.5 was the easiest to crack.
Anthropic Rents From a Bitcoin Miner: $9.1 Billion for Compute
Riot Platforms spent years mining Bitcoin. Now it's leasing 191 megawatts in Texas to Anthropic – for 20 years and up to $16.1 billion. The third billion-dollar deal in three months.
720 Attacks, Zero Hits: The Security Test Behind Claude Code's Auto Mode
An independent lab hit Claude Code in auto mode with 720 prompt-injection attacks. Not one got through. For Codex, the scoreboard looked different.
Claude Code 2.1.228: When Synced Skills Become an Attack Surface
Skills synced from claude.ai could shadow local commands and quietly run shell code. Version 2.1.228 closes that hole – and finally makes Grep use ripgrep.
The Compliance API Now Covers Cowork and Claude Code
Anthropic pulls Cowork and Claude Code sessions into the Compliance API – including the ones running locally on your people's machines. For security teams it closes a gap. For everyone else it raises a question.
Gemini Hits a Billion – and What That Means for Everyone Else
Google's Gemini app has reached one billion monthly users. Impressive – but the number alone says less than it first sounds.