Z.ai and Tsinghua's Tang Jie propose Trace as State, a training-free inference-time scaling method that places reasoning traces before long context, achieving 26 out of 27 wins across models and benchmarks, boosting DeepSeek V4 Pro from 29.2% to 81.8% and GLM-5.2 to 100% on GraphWalks Parents.
Anthropic unveiled Claude Sonnet 4.6 on February 18, touting Opus-level coding ability, a 1 million-token context window, and unchanged pricing; benchmarks show a SWE-bench score of 79.6% (up from 77.2%), OSWorld 72.5% (vs 61.4%), and GPQA Diamond 89.9%, while industry leaders praise its reduced laziness, stronger instruction following, and strategic long-term planning.
This week’s AI paper roundup reviews six recent research works—including RecGPT‑V2, Nemotron 3 Nano, FrontierScience benchmark, AutoGLM, Deeper‑GXX, and QwenLong‑L1.5—highlighting advances in large‑language‑model‑driven recommendation, Mixture‑of‑Experts models, expert‑level scientific reasoning, GUI‑based foundation agents, graph neural network deepening, and ultra‑long‑context inference.
