Bitcoin Optech / Fintech Takes / Fintech Business Weekly / Net Interest
Strategy Follows Structure
Fidelity, Capital, Vanguard and the Ownership Structures That Made Them
Friday, 29 May 2026
Everything this site carried that day, newest first. Stories are kept for a month, and the widely covered ones for a year.
OpenAI News
Boston Children’s uses AI to unlock new diagnoses
Boston Children’s Hospital uses OpenAI technology to improve patient care, reduce operational burden, and help diagnose more than 40 rare disease cases.
OpenAI News
How Braintrust turns customer requests into code with Codex
How Braintrust engineers use Codex with GPT-5.5 to run experiments and code faster.
Vercel (blog + changelog)
Function invocations now billed per unit
Function invocations Starting with your next billing cycle are moving from package-based to per-unit pricing for Pro and new Enterprise customers. You’ll continue paying the same effective rate until the end of your current billing cycle.you’ll be billed per unit to align costs directly with your…
Smashing Magazine / CSS-Tricks / web.dev / Chrome for Developers / LogRocket
New to the web platform in May
Discover some of the interesting features that have landed in stable and beta web browsers during May 2026.
Vercel (blog + changelog)
Protecting against token theft
HTTP requests are inexpensive. Vercel charges ~$2/million, a fraction of a cent per call. But a single prompt to an agent on a frontier model can cost $2, making AI a million times more expensive, and inference theft one of the highest-margin businesses an attacker can run. We have seen this type…
OpenAI News
Strengthening societal resilience with Rosalind Biodefense
OpenAI launches Rosalind Biodefense, expanding trusted access to GPT-Rosalind for vetted developers and U.S. government partners advancing biodefense, public health, and pandemic preparedness through frontier AI.
Vercel (blog + changelog)
Run Docker containers inside Vercel Sandbox
Update (August 2026): vercel/sandbox/universal:latest dnf apt-get See the announcement Vercel Sandbox now runs on Vercel Managed Images. Starting with SDK v3, new sandboxes default to the Ubuntu-based, whereisn't available. The example below applies to the deprecated Amazon Linux runtimes; on…
Vercel (blog + changelog)
Port 8080 is now available in Vercel Sandboxes
Vercel Sandboxes ingress domain now allow opening and binding to port 8080 as an. This port was used as a controller port, and that has now moved to port 23456. documentation Learn more about Sandbox in the. Read more
OpenAI News
A shared playbook for trustworthy third party evaluations
OpenAI shares guidance on third-party AI evaluations, covering how to assess model capabilities, safeguards, and validity for frontier systems.
Hugging Face Blog
Profiling in PyTorch (Part 1): A Beginner's Guide to torch.profiler