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Some of the biggest names in global finance are joining forces on a stablecoin project. Citi, Goldman Sachs, and a coalition of major banks and asset managers are building a dollar-denominated stablecoin aimed at payments and digital asset settlement, with a euro version already earmarked as the next step. When institutions this large move together, it tends to signal less of an experiment and more of a commitment.
Speaking of digital infrastructure, a developer going by the name Don't Trust Me Bro spent roughly a year and one thousand GPU hours fine-tuning an open-source language model on nearly three and a half billion tokens — all on a single consumer graphics card. The goal was fixing persistent problems with tool calling and refusals that had frustrated users of the base model. It's a reminder that meaningful AI work doesn't always require a data center.
And for anyone building with large language models, a sharp piece making the rounds today lays out five ways your model's output can be structurally valid JSON and still be completely wrong. Schema validators catch syntax, not sense — and that gap turns out to be where a lot of real-world failures quietly live.
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