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The Signal

Everything that matters in AI, with our take.

Updated through the day. Every headline links straight to the source. The two lines underneath are ours.

arXiv cs.AIPaper

Timestral

A solid foundation model release for time series with open weights. The key innovations (decoupled horizon forecasting, two-stage pretraining) are sensible but not revolutionary. If you're building time series applications, you now have a new baseline to benchmark against. This matters more for practitioners than for builders of general models.

Interconnects (Nathan Lambert)Article

Meta shakes up the frontiers, open and closed

Open weights were declared dead a year ago when the frontier moved to closed, proprietary systems. Meta's move signals that open-source can compete on capability and speed, not just philosophy. For builders: you now have a real alternative to API-dependent workflows that isn't a year behind. For investors: the margin extraction window in closed models just got shorter.