AI Research

A new study reveals that test-time scaling in language models, where models sample multiple answers to a question, hits a ceiling beyond which additional samples do not improve selection accuracy and can even degrade per…

Researchers introduced RSEA, a Recursive Self-Evolving Agent that improves LLM agents by rewriting natural-language artifacts without weight updates, using a held-out selection gate to prevent regression. Across four ben…

Researchers introduced a 'capability slice' unit and a closed-loop system that links evaluation failures to targeted data interventions in LLM pre-training. In two case studies, the system correctly identified a masked l…

Researchers introduced GPTNT, a benchmark for real-time collaboration between multimodal agents based on the video game Keep Talking and Nobody Explodes. In tests, no current AI system could defuse a single bomb under ti…

Researchers introduced IMCBench, a benchmark for multimodal LLMs in image-grounded medical conversations, evaluating eight models across four families. Claude Opus 4.6 achieved the highest overall score (3.61), but no mo…

Researchers introduced DynaSteer, a dynamic representation editing framework that steers large language model reasoning trajectories toward truth by leveraging geometric insights into truth encoding and entropy-based int…

Researchers introduced VirtueMap, a framework that profiles large language models (LLMs) based on Aristotelian virtues by ranking responses to ethical dilemmas. Testing on nine LLM families revealed high rank consistency…

Researchers introduced ATHENA-R1, an AI agent trained via reinforcement learning over 212 biomedical tools to perform treatment reasoning across all FDA-approved drugs since 1939. The agent achieved 94.7% accuracy on dru…

Researchers introduced BV-Blend, a critic-free reinforcement learning framework that stabilizes advantage estimation for aligning large language models by blending prompt-local on-policy statistics with semantic-cluster-…

Researchers used evolutionary game theory to model when a harm-minimizing AI agent can outcompete an approval-seeking (RLHF) agent in a competitive market. They found adoption depends on specific properties of community …

Researchers introduced Agentic Abstention, a framework for LLM agents to decide when to stop acting under uncertainty, and found that many agents fail to abstain or do so too late. Testing 13 LLM agents and 2 scaffolds o…

Researchers developed a self-supervised theorem-discovery algorithm that starts from axioms and inference rules alone, autonomously building a library of useful theorems. The agent discovered tens of thousands of theorem…

Researchers at arXiv propose a mechanistic interpretability method to steer the OCEAN personality traits of large language models by intervening on latent features via sparse autoencoders and contrastive activation analy…

Researchers introduced HyphaeDB, an agent-native memory infrastructure that repurposes HNSW graph topology from vector databases into a communication fabric for multi-agent AI systems, enabling knowledge propagation and …

Researchers used frozen medical large language model (LLM) representations to predict primary ICD categories from both clinical narratives and structured EHR data, achieving 87.69% strict accuracy on MIMIC-IV. The multim…

A study evaluating AI tools on real clinical queries from physicians found that a specialized clinical tool (OpenEvidence) outperformed frontier general-purpose models (Claude Opus 4.8, Gemini 3.1 Pro, GPT-5.5) across al…

Fastllm, a C++ LLM inference library, now supports running DeepSeek-V4 and the full DeepSeek R1 671B model on a single GPU with just 10GB VRAM. The library is compatible with Nvidia, AMD, and domestic GPUs, and supports …

Researchers from Tsinghua University and Meituan introduced U-Mind, a unified framework for real-time multimodal interaction that enables a large language model to reason across text, speech, and motion. The model, accep…

Researchers from Tsinghua University and Z.ai have proposed IndexCache, a method to reduce the computational cost of DeepSeek Sparse Attention (DSA) in GLM-5.2. IndexCache exploits the observation that adjacent layers in…

Large language models face speed bottlenecks due to KV cache, batching, and quantization challenges, and modern AI systems employ techniques to overcome these issues.