Evaluations on Llama 3.1-8B-Instruct with 128K-token prompts show RouteSparse achieves a 6.5x dense prefill speed with a 0.2-point RULER drop relative to dense attention. ^[1] RouteSparse is a dynamic sparse attention mechanism that assigns each attention head one pattern offline and estimates sparse indices for every prompt to reduce the quadratic cost of long-context prefilling. ^[2] Mashable published the solution for the September 2, 2026 Wordle puzzle, revealing the answer is RULER. ^[3] Fixed per-head routing achieved a 7.3x speedup but resulted in a 1.6-point RULER drop, demonstrating that dynamic routing improves the quality-latency tradeoff. ^[4] The RouteSparse method utilizes a low-cost probe to estimate pattern utility and uncertainty, allowing a latency-aware router to select a specific pattern and budget for each head and prompt segment. ^[5] The Wordle puzzle for September 2, 2026 does not contain any recurring letters. ^[6] Mashable suggests selecting a starting word that includes at least two different vowels and common consonants like S, T, R, or N. ^[7] The New York Times purchased Wordle and subsequently took down the original archive of past puzzles at the creator's request. ^[8]