No. 90 · Saturday, 12 September 2026 · 9 stories

AI Research & Models

Two more AI safety researchers quit Anthropic and Google DeepMind, warn 'no one is coming to save us'

Joe Benton, who led a safety research team at Anthropic, and Josh Engels, formerly of Google DeepMind, left their posts and are joining AI-incident nonprofit METR, days after ex-Anthropic researcher Jacob Coxon's viral resignation post reignited Washington's AI-safety debate.

why it mattersThe exodus is already fueling two new bills in Congress, the FRONTIER Act and the Ban Artificial Superintelligence Act.

AI for Software Development2 stories

Claude Code ships plugin eval command and mid-run output-style switching

Anthropic's latest Claude Code release adds a `claude plugin eval` command that scores a plugin's test suite and returns reproducible JSON/HTML reports, plus `/output-style` for switching styles mid-session across CLI, VS Code, web, and Slack.

why it mattersPlugin authors get a real test harness instead of manual spot-checks.

AI Research & Models3 stories, lead above

DeepSeek launches V4.1-Flash, says it beats its own larger V4-Pro flagship

DeepSeek's new 552B-parameter mixture-of-experts model adds native multimodal vision and a redesigned encoder-decoder architecture; the company says independent tests put it ahead of V4-Pro on performance, cost and speed, and will reroute all V4-Pro API traffic to it starting September 14.

why it mattersA smaller model beating its own flagship undercuts the assumption that bigger is always better.

Dev Tools & Releases2 stories

Bitcoin2 stories

Blockstream refuses ransom for the last 600 BTC stolen in the Liquid Network exploit

After a bug in Liquid's Elements software let an attacker mint roughly 4,000 BTC of unbacked LBTC and peg it out on September 6, the attacker returned about 3,400 BTC but is holding the remaining ~598.5 BTC (~$47M) for a 10% bounty. Blockstream says it won't pay, calling the demand theft, and plans to work with law enforcement and forensic firms to trace the funds.

why it mattersA hard line against paying hackers could set precedent for how other protocols handle post-hack extortion.

Bitcoin · weekly close vs 200-week moving average · log scale · last 8 years Price200-week average
$5,000$10,000$20,000$50,000$100,000 20192020202120222023202420252026 $80,809 $67,358
$5,000$20,000 2020202220242026 $80,809 $67,358

Price is 1.20× the 200-week average. Weekly closes, USD, as of 28 October 2026 · data blockchain.com.