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#legal AI

21 posts

Bilingual Belgian tax law: why NL/FR is a prerequisite, not a feature

Federal law is published in Dutch and French. Regional codes exist in one language only. Rulings follow the language of the procedure. A monolingual AI tool misses half the corpus.

bilingual Belgian tax law NL-FR cross-lingual search legal AI Fisconetplus

How we handle contradictory sources — and why most AI tools don't

When Belgian tax sources disagree, the worst thing an AI tool can do is pick one and act confident. Here's what honest uncertainty looks like.

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Why we publish our accuracy — and why almost nobody else does

Accuracy claims without published metrics are marketing. Here's what it takes to measure legal AI honestly, and why the industry avoids it.

accuracy transparency benchmarking legal AI trust

Behind the scenes: how a law change flows through a legal AI system

When Belgium's programme law amends 47 provisions overnight, what happens inside the AI tool you rely on? A transparent look at the ingestion pipeline.

ingestion pipeline legal AI data quality transparency Belgian tax law

What the Stanford hallucination study actually revealed — and why the industry's response missed the point

Stanford found that premium legal AI tools hallucinate 17-33% of the time. But the most dangerous finding wasn't the hallucination rate — it was misgrounding.

Stanford study AI hallucinations legal AI misgrounding accuracy

What is reranking — and why it's the difference between finding documents and finding answers

First-stage retrieval finds 100 matches. Reranking identifies the 5 that actually answer your question. Here's why that distinction matters for legal AI.

reranking cross-encoder legal AI retrieval search quality

How hybrid search works — and why your legal AI tool probably uses only half the equation

Keyword search finds exact article numbers. Semantic search finds related concepts. Hybrid search does both — and the difference is measurable.

hybrid search BM25 semantic search legal AI retrieval

The EU AI Act and legal AI: what Belgian tax professionals actually need to know

The AI Act entered into force on 1 August 2024. Some provisions are already active. Most articles confuse provider obligations with deployer obligations — here's the distinction that matters for your practice.

EU AI Act legal AI Belgian tax compliance regulation

The future of tax research: what AI changes, what it doesn't, and what that means for your practice

AI adoption in accounting firms surged from 9% to 41% in one year. McKinsey says 44% of legal tasks are technically automatable. The World Economic Forum lists bookkeeping among the fastest-declining roles. Here's what this actually means for Belgian tax professionals — and what it doesn't.

future of tax AI adoption legal AI Belgian tax professional development

What is a knowledge graph — and why it changes how AI navigates Belgian tax law

A search engine finds text. A knowledge graph navigates relationships: which article amends which, which ruling interprets what, which exception overrides the rule. Belgian tax law is a web of cross-references — and a knowledge graph is the map.

knowledge graph legal AI Belgian tax RAG cross-references NLP

What is chunking — and why it's the invisible foundation of legal AI quality

Before your legal AI tool can answer a question, it has to cut the law into pieces. The way it cuts determines whether the answer includes the exception that changes everything — or misses it entirely.

chunking RAG legal AI Belgian tax retrieval NLP

How much time does tax AI actually save? An honest estimate

Harvey users report 37 hours per month. Thomson Reuters claims 63% reduction. We looked at the real numbers for Belgian tax research — and built a conservative estimate that doesn't require you to believe marketing claims.

ROI time savings legal AI Belgian tax productivity

What is temporal versioning — and why your legal AI tool probably serves you yesterday's law

Belgian tax law changes twice a year minimum. If your AI tool can't tell 2019 from 2026, its answer isn't wrong — it's for the wrong year. Here's what temporal versioning is and why it matters.

temporal versioning point-in-time retrieval Belgian tax legal AI data freshness

Why we're not building a chatbot

Chat interfaces feel modern but produce ephemeral, indefensible output. Professional tax research needs structured answers you can file, reproduce, and defend.

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What is confidence scoring — and why it's more honest than a confident answer

LLMs overestimate their own correctness by 20-60%. Confidence scoring doesn't fix that problem — it makes it visible. For tax professionals, that visibility is the difference between a research tool and a guessing machine.

confidence scoring AI uncertainty legal AI calibration professional judgment

Fine-tuning vs. RAG: two ways to make AI smart — and why it matters which one your tax tool chose

Fine-tuning memorizes yesterday's law. RAG looks up today's. For Belgian tax professionals, this architecture choice determines whether your AI tool is current or confidently outdated.

fine-tuning RAG legal AI AI architecture tax technology

How to evaluate a legal AI tool: 10 questions that actually matter

Most firms start by asking 'how accurate is it?' That's question 10 on this list. Here are the nine questions you should ask first — and why they matter more for professional tax work.

AI evaluation legal AI tax technology due diligence professional liability

Why transparency matters more than accuracy in legal AI

The AI industry obsesses over accuracy benchmarks. For tax professionals, verifiability is the metric that actually protects you.

transparency AI reliability legal AI verifiability professional liability

What is RAG — and why it's not enough for legal AI on its own

How retrieval-augmented generation works, why basic RAG still hallucinates, and what a search-RAG fusion architecture adds for tax professionals.

RAG retrieval augmented generation legal AI tax technology AI architecture

AI hallucinations: why ChatGPT fabricates sources (and how to spot it)

Why language models invent legal citations, what makes Belgian tax especially vulnerable, and three defenses that actually work.

AI hallucinations ChatGPT legal AI tax technology AI reliability

I asked ChatGPT and Auryth the same Belgian tax questions — here's what happened

Three tax questions, two AI tools, one clear lesson: for professional research, verifiability beats confidence.

ChatGPT Belgian tax AI comparison tax AI legal AI