Daily Issue
Vol. I — No. 74
15 · 09
Tuesday, 15 September 2026
Generated 2026-09-15 09:43
google/gemini-2.5-flash-lite
It's one of the worst-kept secrets of family life that all parents have a preferred son or daughter, and the rules for acknowledging it are the same everywhere: The favored kids recognize their status and keep quiet about it - the better to preserve the good thing they've got going and to keep their siblings off their back. — Jeffrey Kluger 39 items · 3 sections
§ 0

The Morning

Local weather 1
This morning in
London
Overcast
Today's range
22.4°↓16.2°
currently 19.0°
Feels
18.4°
Rain
35%
Wind
15 km/h
Humid
76%
Rise
06:35
Set
19:15
§ I

From the arXiv

arXiv preprints 10 of 20
cs.AIarxiv:2609.08256Lead article

ACEA: An Adversarial Co-Evolution Arena for Head-to-Head Red-Team and Blue-Team LLM Testing

Yi Ting Shen, Kentaroh Toyoda, Alex Leung

CEA is a novel platform that addresses the isolated development of LLM red-team attacks and blue-team defenses. It facilitates head-to-head adversarial testing by connecting pluggable attack and defense modules to a shared LLM, using an LLM judge for scoring. ACEA's key contributions include a model-agnostic arena with a standardized adapter protocol (ASAP) and an evaluation methodology designed for adversarial rounds with verifiable ground truth.

Comparison of static paradigms and the AMA framework. (a) Static methods suffer from the dilemma of fixed granularity, leading to either noise or information loss. (b) AMA dynamically determines the memory granularity to use, aligning retrieval precision with reasoning demands.
Comparison of static paradigms and the AMA framework. (a) Static methods suffer from the dilemma of fixed granularity, leading to either noise or information loss. (b) AMA dynamically determines the m…
cs.AIarxiv:2601.20352

AMA: Adaptive Memory via Multi-Agent Collaboration

Weiquan Huang, Zixuan Wang et al.

AMA addresses limitations in LLM agent memory by introducing a novel framework that uses multi-agent collaboration. Its core method is a hierarchical memory design that dynamically adjusts retrieval granularity based on task complexity. This allows for more ef…

cs.AIarxiv:2608.16806

Breaking Planner Integrity Boundary: Enviroment State-Text Injection Attack on LLM-Driven Embodied Agents

Jiawei Liu, Jiacheng Guo et al.

This paper introduces the Environment State-Text Injection (ESTI) attack, a novel method that targets LLM-driven embodied agents by manipulating the text describing their environment. Unlike previous attacks, ESTI directly injects deceptive state information, …

Expansion of the security boundary in LLM-driven embodied agents.
Expansion of the security boundary in LLM-driven embodied agents.
Consistency guideline pipeline: Detect (1) and Generate (2).
Consistency guideline pipeline: Detect (1) and Generate (2).
cs.AIarxiv:2609.08832

Closing the Consistency Gap: Self-Evolving Agents That Learn to Stay on Course

Evelyn Duesterwald, Benjamin Elder et al.

This paper addresses the "consistency gap" in LLM agents, where their average accuracy hides significant unreliability across multiple runs. Their core method is a "self-evolving agent framework" that identifies and learns from inconsistent steps. By convertin…

cs.AIarxiv:2604.15153

Compressing Sequences in the Latent Embedding Space: $K$-Token Merging for Large Language Models

Zihao Xu, John Harvill et al.

This paper introduces K-Token Merging, a novel method for compressing long prompts in LLMs by merging contiguous token embeddings in the latent space. This approach, unlike previous token-space methods, reduces computational and memory costs by creating a shor…

№06
cs.AI
9

Does Deeper Reasoning Compromise Alignment? Revealing and Mitigating of Alignment Collapse in Large Reasoning Models

Yu-Hang Wu, Yu-Jie Xiong et al.

This paper reveals that deeper reasoning in Large Reasoning Models (LRMs) can paradoxically lead to "alignment collapse," degrading their safety. They introduce the Alignment Loss …

№07
cs.AI
9

Graph-Based Personalized Memory for LLM Agents: Representation, Evolution, Retrieval, and Evaluation

Dac Duy Anh Nguyen, Zhangchi Qiu et al.

This paper proposes a graph-based framework for LLM agents to build personalized, long-term memory. It structures user information and interactions as a graph, enabling the agent t…

№08
cs.AI
9

Harnessing the Reasoning Economy: A Survey of Efficient Reasoning for Large Language Models

Rui Wang, Hongru Wang et al.

This survey explores "reasoning economy" in LLMs, aiming to balance accuracy with computational cost. It analyzes the causes of inefficient reasoning and proposes solutions for bot…

№09
cs.AI
9

Inference-Time Nash Alignment

Hadi Hosseini, Debmalya Mandal et al.

This paper introduces inference-time alignment methods, Best-of-Nash (BoN) and Nash Mirror Descent (NMD), that can align language models with general preferences without updating m…

№10
cs.AI
9

Inferring the Unspoken: Aligning Embodied Agents with Implicit Preferences

Manjie Xu, Xinyi Yang et al.

This paper introduces a method called Inferring the Unspoken (InTU) that enables embodied agents to learn and apply implicit user preferences from observed behaviors. The core cont…

§ II

The Town Square

Hacker News 10
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