Why reinforcement learning plateaus without representation depth (and other key takeaways from NeurIPS 2025)
Every year, NeurIPS produces hundreds of impressive papers, and a handful that subtly reset how practitioners think about scaling, evaluation and system design. In 2025, the most consequential works weren't about a single breakthrough model. Instead, they challenged fundamental assumptions that academicians and corporations have quietly relied on: Bigger models mean better reasoning, RL creates new capabilities, attention is “solved” and generative models inevitably memorize.This year’s top papers collectively point to a deeper shift: AI progress is now constrained less by raw model capacity and more by architecture, training dynamics and evaluation strategy.Below is a technical deep dive into five of the most influential NeurIPS 2025 papers — and what they mean for anyone bui [...]
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