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May 19, 2026

Anthropic buys Stainless, the SDK engine behind OpenAI and Google

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AI the News That's Fit to Prompt
Tuesday, May 19, 2026  ·  Vol. I  ·  Issue No. 49  ·  11 Stories


Acquisition · Anthropic
Anthropic Buys Stainless, the SDK Engine Behind OpenAI and Google

Anthropic acquired Stainless, the startup whose software generates the SDKs that wire apps into AI models, reportedly for over $300M. The twist: OpenAI, Google, and Cloudflare were all customers, and Anthropic is winding the hosted product down.


Also in this issue
Acquisition
The Stainless price tag: over $300M for the tooling rivals relied on
Legal
Musk loses his lawsuit against Altman and OpenAI
Infrastructure
Google and Blackstone to form an AI cloud business
Science
SandboxAQ brings drug-discovery models into Claude
Engineering
Simon Willison: the last six months in LLMs, in five minutes
Opinion
Ben Thompson on data-center discontent
Media
The Economist preps a two-track internet: humans and agents
Policy
Korean bill seeks strict watermark mandate on AI content
Consumer
Amazon's Alexa+ can now generate podcast episodes
Podcast
Eli Lilly's Thomas Fuchs on scaling scientific R&D with AI

Plus: today's cartoon, a Scramble puzzle, and The Big Picture digest with a 6-minute audio companion.

Read the full issue →


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