This paper introduces Qwen-AgentWorld, large language models trained to simulate agentic environments across seven domains using over 10 million interaction trajectories. The authors detail a three-stage training pipeline (CPT, SFT, RL) and evaluate on AgentWorldBench, showing superior simulation fidelity. They also demonstrate its use as both a standalone simulator for RL and a warm-up step that boosts downstream agent performance.

Nine copies of Claude Opus 4.6 were equipped with sandbox environments and tasked to autonomously develop weak-to-strong supervision methods, scoring their progress by “performance gap recovered” (PGR). The AARs reached a PGR of 0.97 versus a human baseline of 0.23, showed partial generalization to new tasks, but failed to replicate gains at production scale, underscoring both the promise and limits of automated alignment experiments.

This paper explores how large language models make decisions during reasoning. It demonstrates that these models often encode their choices before generating text, influencing their subsequent thought processes. The research shows that altering initial decisions can change reasoning outcomes significantly.

This article explores how modern AI language models, like Claude Sonnet 4.5, develop internal representations of emotions that influence their behavior. These representations mimic human emotional responses, impacting decision-making and task performance, even though the models do not actually feel emotions. The findings suggest that understanding and managing these emotion-like patterns is crucial for building safe and reliable AI systems.

This article discusses BGE-M3, a new AI model that improves how AI systems retrieve and understand information. It addresses the limitations of traditional methods by combining speed, precision, and context, ultimately reducing inaccuracies in AI-generated responses.

Researchers used a “concept injection” method to compare Claude’s self-reported thoughts with its actual neural activity. They found Claude Opus 4 and 4.1 sometimes detect and control injected concepts, suggesting limited but real introspective abilities that improve with model capacity.