Though cabooses have all but disappeared from today’s railroads, they’re still front and center for hobby manufacturers.

You can make the best models in the world, but as soon as you can see the layout room wall behind them, they tend to lose ...

Today, Goodfire?the AI research lab using interpretability to understand, learn from, and design models?announced a $150 million Series B funding round at a $1.25 billion valuation. The round was led ...