Welcome to Jumble, your go-to source for AI news updates. This week, Anthropic might be rethinking its plan to keep Mythos locked up. Meanwhile, a leaked Zuckerberg town hall accidentally explains Meta’s latest round of layoffs. Let’s dive in ⬇️
In today’s newsletter:
🛡️ Anthropic inches Mythos toward release
👁️ Zuck explains the layoffs on tape, badly
📜 The Pope writes a 42,000 word warning about AI
📈 Nokia is somehow the AI trade of 2026
🛠️ Weekly Challenge: Try Cursor Composer 2.5
🔓 Mythos May Be Coming Out of the Vault
When Anthropic launched Mythos in April, it said the model was too dangerous to release. Six weeks later, a "claude-mythos-1-preview" string showed up in Claude Code, alongside leaks for Sonnet and Opus 4.8.
Around the same time, the company quietly added one sentence to its blog: Mythos class models will get a general release once safeguards are ready.
Should Anthropic ship Mythos publicly?
🧪 What Changed in Six Weeks
Project Glasswing partners found 23,019 vulnerabilities in a month, with a 90.6% true positive rate. Cloudflare found 2,000 by itself. The "too dangerous to ship" framing gets harder to defend when defenders are publicly thanking you.
🛠️ Finding Is Easy, Fixing Is the Frontier
Less than 1% of the bugs Mythos flagged have been patched so far. The bottleneck has officially shifted from detection to remediation, which is where the next wave of AI security tools is going to live.
🎙️ Zuck Explained the Layoffs On Tape, Three Weeks Early
On April 30, Mark Zuckerberg told a Meta all hands that engineers make better AI training data than contractors because they're smarter. On May 19, the audio leaked. On May 20, Meta laid off 8,000 of those engineers.
Do you think your job is secretly plotting to replace you with AI?
⌨️ The Surveillance Stack Has a Name
It's called the Model Capability Initiative. It captures keystrokes, mouse clicks, and screenshots across Gmail, GChat, VSCode, and Metamate, and CTO Andrew Bosworth confirmed there is no opt out on work laptops.
🔍 One Detail Tells You Everything
Meta's European employees are reportedly exempt from MCI tracking because GDPR would make it illegal. The fact that legal protection had to be the reason, not company policy, is the entire story.
Weekly Scoop 🍦
🎯 Weekly Challenge: Build Your First App With Cursor
Challenge: Cursor is a code editor that writes the code for you. Its new Composer 2.5 rivals Opus 4.7 at one tenth the cost, and the free Hobby plan gives you enough usage to ship a small project without a credit card.
Here’s what to do:
📥 Step 1: Install Cursor Download Cursor from cursor.com, install it, and sign up for the free Hobby plan. No payment info needed.
💡 Step 2: Pick one annoying task Renaming a folder of files, pulling prices from a site, or sorting your inbox. Anything you'd love to automate but never have.
🧠 Step 3: Open Composer and just ask Hit Cmd+I (or Ctrl+I), pick Composer 2.5 from the model dropdown, and type what you want in plain English. It will write, run, and fix the code itself.
🚀 Step 4: Run it and save the prompt Test it on real data. Keep the prompt that worked, not just the code, so you can repeat the trick on next week's annoyance.
Will Anthropic actually pull the trigger on Mythos, or will the patch backlog buy defenders one more quarter? And does Zuck's "they're smarter than contractors" line survive the next 8,000 layoffs? See you next time! 🚀
Stay informed, stay curious, and stay ahead with Jumble!
Zoe from Jumble
