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Legal Tech

AI for law firms and legal software development

By , Founder & CEO, Apex36Updated

In short

Apex36 builds AI for law firms and legal tech companies: document review support, eDiscovery platforms, matter intake and inbox triage, with an attorney able to override every AI decision. We helped build DecoverAI's legal AI platform, and we build and run TriageGrid, our own email triage product for law firms. Legal AI development starts from $8,000, and a first automated workflow from $5,000.

Key facts

Starting priceLegal AI from $8,000 per project; first automated workflow from $5,000
Typical first milestoneDiscovery typically in under a week; first shippable milestone typically in 1 to 3 weeks
Engagement modelFixed-scope project, or a monthly team
MarketsUS, UK, Australia, Singapore, UAE
Built forClient confidentiality and attorney-client privilege; GDPR for UK and EU matters

AI for law firms: where it helps first

Law firm work is reading work: discovery sets, intake forms and every email in the shared inbox. AI earns its place where the reading volume is high and a lawyer can check every output before it matters.

Three places usually come first:

  • First-pass document review: sorting documents by relevance and flagging likely privilege, so attorneys start with the documents that need them
  • Matter intake: turning an intake form or email into a structured summary with parties, dates and the conflicts to check
  • Inbox triage: classifying incoming mail by matter, deadline and type, and alerting the right person when something is urgent

AI should not give legal advice, and it should not make a privilege call that no attorney has seen. We design every legal tool so a lawyer signs off the decisions that carry risk.

eDiscovery platforms and the infrastructure behind them

Large matters break naive AI systems. A production can mean hundreds of thousands of documents arriving at once, in mixed formats, under a deadline. We build ingestion as queues so documents are processed in the background and nothing is dropped, semantic search with a vector database so reviewers find documents by meaning instead of exact words, and retrieval-augmented generation (RAG) so answers cite the documents they came from. For DecoverAI we built the infrastructure on AWS EKS with Pinecone for vector search, sized for matters of more than a million documents.

Matter intake and legal inbox triage

Shared firm inboxes such as intake@ and billing@ are where deadlines get missed. TriageGrid, our own product, connects to Microsoft 365 and classifies each incoming Outlook email into categories such as intake, court deadlines, billing and conflicts. It then runs the action chain the firm chose for that category: tag, move, forward, reply or flag. Urgent items raise an alert in Teams or Slack, and one-click corrections from attorneys teach it the firm's own categories.

When a firm needs its own matter types, filing into its document management system or a stricter data policy, we build a custom version inside the firm's own cloud account.

Confidentiality and privilege by design

Client files are the reason firms hesitate to use AI. We design around that:

  • Documents stay in your own cloud account, in the region you choose
  • Data is encrypted at rest, and access to each matter is limited by role
  • Where documents cannot go to an outside model API at all, we run an open-weight model inside your account (see private LLM)
  • Every AI decision and every human override is logged with who, what and when
  • Your matter data is kept out of shared prompts, examples and other clients' systems

Professional responsibility stays with the firm; we build to the controls your general counsel and IT team set.

What AI for a law firm costs

Legal AI projects start from $8,000, and a first automated workflow, such as inbox triage for one shared mailbox, from $5,000. Large document volumes, private model hosting and integrations with your document management system move the price up. Model and cloud costs are billed to your own accounts. You get a fixed quote in writing after discovery. See pricing.

Proof from our work

What clients say about working with us

“One of the hardest-working and meticulous engineers I have encountered... helped build the infrastructure and Generative AI platform that is now deployed in large law firms throughout the United States... We eventually raised 2M+ in funding with the help of his efforts.”
Ravi TandonCo-Founder & CEO, DecoverAI

Frequently asked questions

Law firms use AI mostly for reading-heavy work: first-pass document review, summarising intake, sorting shared inboxes and searching large document sets by meaning. The useful systems keep an attorney in charge of every decision that carries legal risk and log what the AI did.

Yes, as a first pass. AI can classify documents for responsiveness and likely privilege with a confidence score, so attorneys review the uncertain and privileged ones first. It should not make final privilege calls on its own; an attorney approves or overrides each one.

It can be, if the system is built for it. We keep documents in your own cloud account, encrypt them at rest, limit access by role and log every AI decision. Where documents must not reach an outside model API, we run a private model inside your account.

No. It changes where attorney time goes. AI sorts and flags, attorneys decide, and the audit trail shows which was which. That split is also what makes the review defensible later.

At Apex36, legal AI projects start from $8,000 and a first automated workflow from $5,000. Document volume, private model hosting and integrations add to that. You get a fixed quote in writing after discovery.

Buy when the task is standard and a product fits your data rules. Build when your workflow, categories or confidentiality rules do not fit, or connect a product to your systems with a custom integration. Many firms end up doing both.

Yes. TriageGrid, our own product, classifies Outlook email into categories such as intake, court deadlines and billing, then tags, moves, forwards or flags it. For firm-specific rules we build a custom version in your cloud account.

Yes. We build MVPs and AI platforms, then work as a monthly team. We worked with DecoverAI for 13 months on its legal AI platform.

Services for this industry: AI consulting and development · Private LLM · Workflow automation · SaaS and MVP development

Find out what to build first

Start with the free AI readiness assessment and get a written report by email, or book a 30-minute strategy call with the founder.