28 Jul 2026
Signal Headquarters

Field Notes · 14 Jun 2026

Best explained

Anthropic's vague 'potential serious harm' standard in its data retention policy creates ambiguity for legitimate professional use cases, such as lawyers handling government surveillance litigation, making compliance unpredictable.

Anthropic explains why the government jailbreak standard used against Fable is industry-ending if generalized: applying it broadly would halt all new model deployments across every frontier AI provider.

By the numbers

Cloudflare reported that agent and bot browsing now accounts for more web use than human browsing.

New today — Evidence added

Pulsia reached $10M annualized revenue run rate within approximately one year of launching.

Ben Cera

DeepSeek achieved GPT-4-level performance at 1/600th the cost of GPT-4.

Dylan Patel

AI coding productivity gains are 2-3x in practice, not the commonly cited 5-20x.

Ajeya Cotra

New today — Sharp calls

It is now possible to build custom internal tools for clients at $5,000 flat in 2 days using Claude Fable 5.

Greg Isenberg

Anthropic states it never received disclosure of any harmful jailbreak result, directly undercutting the national security rationale behind the government directive that shut down Fable.

Anthropic

New today — Useful context

Why training on human solutions caps model capability: known solutions define a typical subset h of the full solution space f, and no amount of test-time compute or self-improvement lets a model escape to sample from f minus h.

Luke Bailey

Only 20% of founders are still the CEO 3 years after going public.

Eric Ries

New today — Watchlist

The FDA will consider moving seven peptides from Category 2 (cannot compound) to Category 1 (can compound) in July 2026.

Dr Alex Tatem

A 2024 Copenhagen study analyzing ancient DNA found only 21 positions highly different in frequency across time, suggesting a near-asymptote in detecting natural selection signals despite large increases in sample size and data…

David Reich

Helios can increase payload to Mars by a factor of five when used as a third stage on Falcon 9.

Tom Mueller

Granola stopped storing audio after approximately one week because it felt too creepy and made the product feel heavy.

Sam Stephenson

The remaining two-thirds of robot demos that appear autonomous required hundreds of people to teleoperate hundreds of robots for thousands of hours to collect imitation learning data.

Nikita Rudin

In the Bybit hack, North Korea converted nearly all of the stolen $1.5 billion in Ethereum into other assets within the first 72 hours.

Ari Redbord

Tool watch

Goldman Sachs and JP Morgan are exploring compute futures as a financial instrument to hedge data center exposure, signaling Wall Street entry into AI infrastructure markets.

Fable: a frontier AI company shut down by US government export control directive, now a central test case for how capability-based national security restrictions could apply across the AI industry.

Worth quoting

“Took 30 days. That would've taken years before.”
Bobby Healy
“It basically does what Falcon Heavy does for tens of millions of dollars less money.”
Tom Mueller
“My job wasn't to add process. It was to restore social contract.”
Katelin Holloway
“Get out of the feedback business. Get in the recommendation, suggestion business.”
Randall Stutman
“If every deal is right in a roll-up, we're either not taking enough risk or not moving fast enough.”
Alex Sloane
“The equity-funded bubble of 2000 is very different than the cash flow funded bubble of today.”
Denise Chisholm
“Trump is like sell you know he's our top salesperson for a defense ETF in Europe.”
Jan Van Eck
“Super intelligence versus extinction. Those are your two options.”
Michael I. Jordan
“We no longer have enterprise plans dated by humans. We've launched enterprise self-service.”
Anthropic Head of Industries