What is the Assistant?
The Assistant is the primary AI interface in LexHub. It allows you to ask legal questions, analyse documents, and run workflows through a conversational interface — while keeping every answer grounded in sources you can verify.
Unlike a general-purpose AI chatbot, the Assistant is designed for professional legal work. It draws only from the documents and legal sources you select, and every response includes inline citations so you can trace exactly where each answer comes from.
Getting started with the Assistant
Step 1: Open the Assistant
The Assistant is accessible from the main navigation. Click Assistant to open a new chat. You can start typing your question straight away, or set up your sources first for a more targeted response.
Step 2: Choose your sources
Before or after typing your question, you can control what the Assistant draws from:
Upload a file — Attach one or more documents to ground the AI's response in specific content. Useful for analysing a contract, reviewing a brief, or summarising a report.
Select a Dossier — Limit the Assistant's context to a predefined collection of documents. Ideal when working on a specific matter with multiple related files.
Select a legal source — Choose from available legal sources such as EUR-Lex or Rechtspraak to ensure the AI's answer is grounded in recognised law.
You can combine these — for example, uploading a contract while also selecting a legal source to check it against applicable legislation.
Step 3: Ask your question
Type your question in the prompt field and press Enter. The Assistant will respond with a structured answer, including inline citations that link directly to the relevant source material.
Not sure how to phrase your question? Use the Prompt library to browse predefined prompts, or let the AI improve your prompt automatically using the AI-improved prompt feature.
Key features
Citations and source transparency
Every response includes inline citations. Hover over a citation to preview the source, or open the source drawer to see the full list of materials used, view the original document, and see exactly which passage the answer was drawn from. This makes it straightforward to verify any AI output before relying on it professionally.
Reasoning
For each response, you can view the reasoning steps the AI used to arrive at its answer. This helps you assess the reliability of a response and understand how conclusions were reached — without needing to interpret raw model output.
Deep thinking mode
For complex legal questions that require more careful analysis, you can enable Deep thinking mode. This prompts the Assistant to reason more thoroughly before responding, and is particularly useful for nuanced questions or multi-step analysis.
Web search
When a question requires up-to-date information beyond your uploaded documents or selected legal sources, you can enable web search to allow the Assistant to draw from current online sources.
Workflows
Rather than writing a prompt from scratch, you can run a predefined Workflow directly from the Assistant. Available workflows include:
Summarise document — Generate a structured overview of a document, focusing on key clauses and obligations
Summarise redlines — Understand the substantive changes between document versions
Extract timeline — Pull out all dates, deadlines, and events in chronological order
Compare document versions — Highlight and explain differences between two documents
Workflows are particularly useful for high-frequency tasks where consistency matters.
Managing your chats
Each conversation is saved automatically and accessible via History, where you can search, revisit, and continue previous chats.
Within a chat, you can:
Rename or delete a chat to keep your history organised
Share a chat with a colleague
Move a chat to a Project to connect it with related work on a specific matter
Save a prompt to your Prompt library for future reuse
Copy a response to use the output elsewhere
Rate a response with a thumbs up or down to provide feedback
Tips for getting better results
Be specific about scope. If your question relates to a particular jurisdiction or document type, say so. The more context you give, the more targeted the response will be.
Use a Dossier for matter-specific work. Rather than uploading files each time, set up a Dossier for ongoing matters so the Assistant always has the right context ready.
Save prompts you use often. If you find yourself asking similar questions regularly, save them to the Prompt library for faster access.
Check the citations. The Assistant is designed to be verifiable. Before using any output professionally, use the source drawer to confirm where the answer came from.
Related articles
Setting up a Dossier
Working with Legal Sources
Using Workflows
Managing your Prompt library
Organising work in Projects