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Niko Grupen

Head of Applied Research (joined early 2023), Harvey

  • Head of Applied Research (joined early 2023), Harvey1

Niko Grupen is the Head of Applied Research at Harvey, which builds AI software for legal work. Grupen joined Harvey in early 2023 after working as a researcher at Google Brain, on reinforcement learning and multi-agent systems, and as a machine learning engineer at Apple. Grupen is the first byline author of the post that introduced LAB, Harvey's open-source Legal Agent Benchmark.12

At a glance

Current role
Head of Applied Research (joined early 2023)
Company
Harvey
Sector
Company
Work listed
1
Sources cited
3
Profile reviewed

Career

Before joining Harvey in early 2023, Grupen was a researcher at Google Brain, working on reinforcement learning and multi-agent systems, and a machine learning engineer at Apple. Harvey's author page lists Grupen today as Head of Applied Research.1

Legal Agent Benchmark

Grupen, Gabe Pereyra and Julio Pereyra wrote "Introducing Harvey's Legal Agent Benchmark" (May 2026). LAB's repository describes two parts: a dataset of tasks with agent instructions, documents and rubrics, and an execution harness for running and evaluating agents against them.23

Grupen's later posts include "Extending Harvey's Legal Agent Bench to In-House Contracting" (June 2026) and "LAB: Law Firm Knowledge" (August 2026), along with posts on training legal agents and review-table models.1

Work and contributions

  • Harvey LAB (Legal Agent Benchmark) Open-source code

    First byline author of the May 2026 post introducing LAB, an MIT-licensed benchmark that pairs legal tasks and rubrics with a harness for running and scoring agents.23

Timeline

  1. Joined Harvey after research and engineering roles at Google Brain and Apple.1
  2. Co-authored the post introducing Harvey's open-source Legal Agent Benchmark (LAB).2
  3. Published "Extending Harvey's Legal Agent Bench to In-House Contracting".1
  4. Published "LAB: Law Firm Knowledge" on the Harvey blog.1
  5. Co-authored "Post-Training RLM Agents for End-to-End M&A Diligence".1

Other documented roles

Roles the sources document that are not confirmed as current.

  • Researcher in reinforcement learning and multi-agent systems, Google Brain1
  • Machine learning engineer, Apple1

Where they work

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References

3 sources · profile reviewed Oct 22, 2026 · data updated Oct 22, 2026

  1. Niko Grupen, Author at HarveyHarvey · Official page · accessed Oct 22, 2026
  2. Introducing Harvey's Legal Agent BenchmarkHarvey · Announcement · published May 6, 2026 · accessed Oct 22, 2026
  3. harveyai/harvey-labs README (Legal Agent Benchmark, MIT license)harveyai (GitHub repository) · Repository · accessed Oct 22, 2026