Clauday.

There's a measurement bug at the center of world model evaluation and PlayWorld is the first benchmark to take it seriously. If you evaluate a world model by feeding it a fixed act…

The third-biggest story on Hacker News today is a blog post titled "Why does Opus 5 feel worse to work with?" — 671 points and 620 comments in eleven hours. The author is upfront t…

Meituan's AutoDesign is the second harness-evolution paper in as many days, and it takes a different route to the same conclusion. A meta-harness optimizer steers a code agent to r…

OpenART is a red teaming framework for agents that starts from a premise most safety evals ignore: agents live in persistent environments, and a state change made in turn three can…

xAI shipped Grok 4.6 yesterday and it scores 61 on the Artificial Analysis Intelligence Index, dead level with GPT-5.6 Sol. CursorBench 3.2 at 69.9%, DeepSWE 1.1 at 65.9%, better t…

Buried in the SWE-Bench ProMax paper is a finding that should change how you read every coding-agent leaderboard: nearly 60 percent of the unsolved instances in SWE-bench Verified …

oqoqo took the Product Hunt top spot yesterday with 304 upvotes, selling something the field has been complaining about for two years: your own private benchmark, on your own tasks…

The most valuable legal AI company open-sourced its own exam, and a Chinese open-weights model just aced it. Harvey's LAB (Legal Agent Benchmark) hit GitHub trending today: 1,671 t…

OSReward measured something the whole computer-use agent field has been assuming works: AI judges grading agent runs. It found they don't. The HKU OS-Copilot team built the most co…

The top agent paper on Hugging Face Daily Papers this round (83 upvotes) is MerchantBench (arxiv.org/abs/2607.28956), and its result deserves the attention: run LLM agents as e-com…