RT by @_akhaliq: Top Hugging Face papers this week: long-horizon agents, self-improving RL, and…

TL;DR - A curated roundup of the week's most-upvoted Hugging Face Daily Papers, clustered around long-horizon agents, self-improving RL, and multimodal generation. It's a fast signal of where preprint attention is concentrating rather than a technical result in itself.

• Three themes dominate the week: long-horizon agentic behavior, RL-based self-improvement, and multimodal/video generation.
• Named agent-oriented work includes LongHorizon-Harness, AgentOPSD, MerchantBench (agent benchmarking/evaluation) and Mental World Modeling (internal world models for planning).
• RL/self-improvement entries include RLSVR and Recursive Synthesis; Deferred Exposure and DAPD round out the training/methods side.
• Multimodal generation is represented by SwanTale and JoyAI-Video-Edit; the post gives titles only, so no results, metrics, or methods can be inferred beyond the topic clustering.