updated 1 public sources
large language modelsreasoningtool use

Current frame

LLM reasoning and tool-use researcher.

Extended note

Zhengyin Du is listed among the ByteDance Seed authors of the 2025 report Seed1.5-Thinking and on the ByteDance Seed paper page for Recitation over Reasoning. A matching dblp author profile lists 2024-2025 work including ToolHop, Agent-R, LongReason, MIR-Bench, and Recitation over Reasoning, indicating a public research footprint around large language model reasoning, tool use, and evaluation. No verified public homepage, education record, or employment chronology beyond existing ByteDance Seed authorship evidence was found, so those fields remain unset.