Research & methodology

Read the work before you hire anyone.

PLI publishes its methodology and its open-source model research in plain language for lawyers and in full depth for engineers. The GitHub and Hugging Face pages are the source record; these notes explain why the work matters and how it fits together.

Methodology & curriculum

The method PLI teaches.


How a firm turns a frontier model into a reliable associate — the layer of skills, workflows, retrieval, evaluation, and guardrails that is the real thing worth owning. This is also the curriculum behind PLI’s enablement training.

Skills, not chatbots

Why a library of narrow, well-described skills beats one giant prompt — and why the description is a classifier, not decoration.

Deterministic document generation

Treat document automation like a compiler: the model drafts, deterministic code builds, and formatting never drifts.

Retrieval over your own work product

Your archive is the asset. Ground drafts in your own approved language — and never let a style source supply the facts.

Fail-closed legal AI tooling

How legal AI should behave when the evidence is weak: stop, record the reason, and require human review.

Practising private legal AI

Explainers for lawyers.


Plain-English pieces on the questions every firm evaluating AI should be able to answer — written to teach the vocabulary, not to sell.

Why on-prem isn’t paranoia

What “the data never leaves the building” requires, and why owning the stack is now the affordable option.

Ethics & risk

Professional responsibility.


The old duties — competence, confidentiality, candor — applied to a new tool. General information, not legal advice.

The confidentiality math

How professional-responsibility guidance treats AI, why the terms of service matter for privilege, and why “the AI said so” is not a defense.

PLI Labs research

Open-model work, in the open.


Source-level research on legal model pruning, Hugging Face releases, and owned-hardware inference — summarized in plain language, linked back to the public record.

Legal REAPs, not finetunes

Why PLI Labs prunes open models around legal capability instead of training on client data.

Qwen3.5 legal REAP release

Two Qwen3.5 legal-compression candidates published for lawyer-supervised evaluation.

What the Qwen3.5 run showed

A candid finding: the model is prune-resistant, so PLI Labs published a conservative cut rather than a bigger headline.

Source record

Public GitHub & Hugging Face.


The current PLI Labs public repository is ProprietaryLegal/pli-labs. The research summaries above link to the underlying artifacts published there and to the matching Hugging Face model repositories.