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Curated daily by AISearch Global. Every story links to its original source — we don't republish, we round up.

AI News

Judge says Trump admin still lacks evidence for Anthropic ‘supply chain risk’ label

A federal judge said the Trump administration has not presented enough evidence to justify labeling Anthropic a supply chain risk, casting doubt on the government's ban on its AI technology.

AI News · Human-AI Research

A fundamental flaw leaves LLMs strikingly vulnerable to attack

It is impossible to make large language models fully secure against hacks because of a fundamental flaw in how they work, a team of researchers argue in a paper presented at the International Conference on Machine Learning, a top AI conference, this month. The claim has huge implications for the safety of this technology, which…

Human-AI Research

Probing the Origins of Reasoning Performance: Representational Quality for Mathematical Problem-Solving in RL vs. SFT Fine-Tuned Models

arXiv:2607.26119v1 Announce Type: new Abstract: Large reasoning models trained via reinforcement learning (RL) have been increasingly shown to outperform their supervised fine-tuned (SFT) counterparts on mathematical reasoning tasks; Yet the mechanistic basis for this advantage remains unclear. We therefore ask, what internal representational differences enable RL models' superior performance? Our work presents two converging lines of evidence: First, linear probes trained on layer-wise hidden states reveal that RL models tend to achieve higher accuracy in predicting answer correctness compared to SFT models, indicating more linearly separable and structured representations. Second, mean ablation studies show that RL models develop a hierarchical architecture where deeper layers become progressively more critical, whereas SFT models distribute importance uniformly across layers. Together, these findings demonstrate that RL training fundamentally restructures how models represent and process reasoning problems. Finally, we analyze token-count variability under repeated sampling across problems to assess adaptive compute allocation. While we observe higher variability in some RL-tune

AEO Relevance

Google’s ‘Generative AI’ Search Console Data Is A Trap For Marketers via @sejournal, @TaylorDanRW

Eight weeks of AI Overviews data in Search Console reveals impressions without clicks, inflated position-one rankings, and misleading averages that can mask real traffic losses. The post Google’s ‘Generative AI’ Search Console Data Is A Trap For Marketers appeared first on Search Engine Journal .

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