Blue J
Also: Ask Blue J
A legal research tool known for tax work. Check which laws and sources its current plan covers.
The fuller definition
Blue J is a Canadian-founded AI research platform, originally focused on tax law, that answers questions with references to the sources it draws on.
- Question“What is the notice period?”
- RetrieveSearch the indexed documents; pull the best-matching passages.
- GenerateThe model answers from the question plus those passages.
- CiteEach statement points to the passage it came from.
Two things can still go wrong: the search misses the clause that matters, or the model misreads the clause it was given. The citation lets you check which happened.
A concrete example
A tax practitioner asks how a provision applies to a fact pattern and receives an answer with linked sources.
The distinction that matters
An answer with sources is a route for checking, not a conclusion. Confirm the provision and its current form.
Related terms
CoCounsel
A legal AI tool from Thomson Reuters. It helps with tasks such as research and document review. Its output still needs checking.
Documents & retrievalGrounding
Basing an answer on a named source or set of facts. A link to a source does not prove the answer follows from it.
Documents & retrievalCitation
A pointer to the source that supports a statement, so someone can check it.
Where it is taught
Choose an AI tool around the work productSource and further reading
Blue JThe definition and example are written for this library. The link gives background, official documentation or legal authority as labelled. Legal scope depends on the jurisdiction and current text; product features depend on release and settings.