AI Planning

What if AI agents could imagine their future before taking a step—just like we do? That’s the vision behind SimuRA, a new architecture that pushes LLM-based agents beyond reactive decision-making and into the realm of internal deliberation. Introduced in the paper “SimuRA: Towards General Goal-Oriented Agent via Simulative Reasoning Architecture with LLM-Based World Model”, SimuRA’s key innovation lies in separating what might happen from what should be done. Instead of acting step-by-step based solely on observations, SimuRA-based agents simulate multiple futures using a learned world model and then reason over those hypothetical outcomes to pick the best action. This simple-sounding shift is surprisingly powerful—and may be a missing link in developing truly general AI. ...

Monte Carlo search algorithms rarely make the shortlist in multi-objective optimization (MOO). Traditionally, the field has belonged to evolutionary algorithms like NSGA-II and SMS-EMOA. But a paper from Paris Dauphine-PSL and Thales upends that hierarchy with an audacious twist: what if we generalized NRPA — a niche but powerful single-objective method — to handle multiple objectives, constraints, and diversity, all in one elegant framework? ...

When it comes to language model agents, more minds may not always mean merrier results. Multi-agent reinforcement learning (MARL) promises a flexible path for decomposing and solving complex tasks, but coordinating multiple large language models (LLMs) remains riddled with instability, inefficiency, and memory fragmentation. Enter JoyAgents-R1, a novel framework that proposes an elegant, scalable solution for jointly evolving heterogeneous LLM agents using Group Relative Policy Optimization (GRPO). Developed by researchers at JD.com, JoyAgents-R1 combines memory evolution, policy optimization, and clever sampling strategies to form a resilient multi-agent architecture capable of matching the performance of larger SOTA models with far fewer parameters. ...