Meituan's LongCat team splits deep research into planning, parallel section research, and global-to-local editing via ResearchSpec, scoring 55.25, 51.35, and 79.83 on three public benchmarks
Meituan's LongCat team presents LongCat-DeepResearch, which shifts early research iteration from the full report to an executable ResearchSpec: multiple planning agents first search external sources and consolidate a research plan, researchers then investigate and draft citation-bearing sections in parallel independent contexts, and a Global Editor assigns cross-section ownership while Local Editors make targeted revisions, yielding 55.25 on DeepResearchBench, 51.35 on DeepResearchBench II, and 79.83 on ResearchRubrics, and 76.04 on an in-house benchmark, second among four compared systems.