MentanimaYour firm's brain
for the age of AI.
An ingestion engine that absorbs hundreds of millions of documents, emails and more, then serves that context to every AI system your firm runs.
One brain to power your firm's AI systems.
Tessera is a server. It connects to the systems your firm's work lives in, builds the connections between everything in them, and serves that knowledge to whichever AI tool asks. Microsoft Word gets it through an add-in. Claude, ChatGPT and the legal AI platforms you already license connect over MCP or API.
Your systems of record
Tessera
Your AI tools
- A fraction of the tokens
- Your AI tools get the relevant context, not the whole archive.
- Answers in seconds
- Documents, precedent and facts, without hours of digging through the DMS.
- Every answer cited
- Each claim keeps its path back to the source, so lawyers can check it.
Your firm's entire history, connected at the atomic level.
Tessera reads everything the firm has ever produced and rebuilds it as one memory that any tool can draw on.
It starts in your systems
DMS, email, matter management. Every matter, every draft, every closing set.
Every entity, identified
Matters, clients, counterparties, positions, clauses, people. Resolved into one record.
Connected at the atomic level
Every entity linked to every fact it touches. Every fact keeps its path to the source.
Every tool draws on it
ChatGPT, Claude, Microsoft Word or your legal AI platform asks. Tessera answers, with the source.
Every node an entity · every edge a fact · every fact a source
A conversation with your institutional knowledge.
Ask from Claude, ChatGPT, Microsoft Word or your legal AI platform. Every answer cites its sources.
Example queries
For the Meridian Health acquisition, how should I open on the indemnity cap given Blackstone is advising the seller again? What's a realistic fallback on the basket, and where have we landed on R&W insurance carve-outs with this buyer?
On the indemnity cap: firm standard for healthcare acquisitions in this range is 10% EV, 12-month survival[1]. Blackstone accepted 10% on 3 of 4 recent sell-side mandates but pushed for 18-month survival on Caraway Diagnostics, since they're sensitive to compliance-rep tails in regulated sectors[2]. On the basket: firm default is 0.75% tipping deductible; Blackstone conceded tipping in 6 of 8 deals but insisted on true deductible on both healthcare transactions[1][3]. On R&W carve-outs: this buyer carves fraud, known breaches, and tax from policy coverage; you negotiated exactly that on Weston Labs with no pushback[4].
Your firm's positions, applied in the document.
The one surface we ship ourselves: an add-in that brings the firm's positions into the document your lawyers are already drafting in.
Give an instruction
“Align the indemnities with our client's healthcare-deal standard.”
Grounded in Tessera first
The add-in absorbs the matter through Tessera and finds the language your firm would actually use.
Tracked changes, with reasons
Clause by clause, each change ships with a drafted comment for you to accept or reject.
Ready for execution.
See it on your firm's kind of matters, with the team building it. What to expect:
- (a)A walkthrough of Tessera
- (b)Tessera answering inside Microsoft Word and Claude, live
- (c)An honest read on fit