Simon WillisonAnthropicThursday, October 1, 2026·1 min read

pwasm 0.2a0

Release: pwasm 0.2a0 pwasm is one of my folly projects - an entirely vibe-coded pure Python WebAssembly engine that I built in January during my first bout of AI mania. I hadn't touched it since January, so I decided to let Claude Opus 5.5 loose on it and see if it could make any significant...

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Simon Willison

5h ago1 min read

Quoting Felix Rieseberg

Anthropic

The "old" version of Cowork runs model inference in the cloud, executing tool calls in an Anthropic-provided VM we shipped to your computer. We added the VM for capability, safety, and security reasons - mapping in just the data you explicitly added to your session. People loved what they were able...

TechCrunch

3 days ago1 min read

Call it AI, call it Super Intelligence, only 2% of consumers are buying it

Anthropic

This week, the White House got nearly every major tech CEO in one room — Zuckerberg, Bezos, Musk, and Anthropic’s Dario Amodei among them — to sign an AI safety pledge that President Donald Trump called “morally binding.” Trump also signed an executive order officially rebranding AI as “super...

TechCrunch

3 days ago1 min read

It’s not AI anymore, it’s ‘super intelligence’ (according to the White House)

Anthropic

TechCrunch

6 days ago1 min read

Anthropic’s prospectus details losses, growth, and, yes, a warning that its AI could end humanity

Anthropic

In its prospectus, Anthropic just told investors it's losing tens of billions of dollars a year, but also growing like crazy, and — oh yeah — its own AI might pose an existential risk to humanity.

MarkTechPost

6 days ago1 min read

Anthropic Releases Claude Sonnet 5.5: 70.6% on Terminal-Bench 4.0 at the Same $2/$10 Price

Anthropic

Anthropic has released Claude Sonnet 5.5, the second model in its Claude 5.5 family. It scores 70.6% on Terminal-Bench 4.0 and lands within 2 points of Opus 5.5 on GDPval-AA. It also generates output 30%+ faster than Sonnet 5 and keeps the same $2/$10 per million token price. Anthropic says cost...