Niko Grupen
Head of Applied Research at Harvey; lead byline on the Legal Agent Benchmark (LAB) announcement
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
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
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
Career timeline
2023
Joined Harvey after research and engineering roles at Google Brain and Apple.1
May 6, 2026
Co-authored the post introducing Harvey's open-source Legal Agent Benchmark (LAB).2
Jun 12, 2026
Published "Extending Harvey's Legal Agent Bench to In-House Contracting".1
Aug 7, 2026
Published "LAB: Law Firm Knowledge" on the Harvey blog.1
Sep 8, 2026
Co-authored "Post-Training RLM Agents for End-to-End M&A Diligence".1
Other documented roles
Roles the sources document but that are not confirmed as current.
- Researcher in reinforcement learning and multi-agent systems, Google Brain1
- Machine learning engineer, Apple1
Related people
More sourced profiles at the same organization, in the same field, or from the same school.
- Gabe PereyraAlso at Harvey
- Denis YaratsReinforcement learning
- Winston WeinbergAlso at Harvey
- Andrew LaackAgents
- Abhimanyu DasAlso at Google
- Andy KonwinskiEvaluation and benchmarks
- Adam PaszkeAlso at Google
- David HaAlso at Google
- Ahmad Al-DahleAlso at Apple
- Greg KamradtEvaluation and benchmarks
- Aidan GomezAlso at Google Brain
- Jakob FoersterReinforcement learning
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