Sputnik Legal

How it works

From raw files to winning arguments

72h setup

Analyze tens of thousands of documents

Upload your entire case file—any format. Sputnik processes scanned printouts of emails, lengthy videos, handwritten notes, spreadsheets, and every other document type your case throws at you.

PDFs, Word, Excel, scanned images, audio, video
Every document becomes searchable and AI-accessible
Operational in 72 hours, even with 10,000+ files

AI that knows your case

Sputnik automatically tags documents, extracts entities like people and organizations, and builds procedural timelines—so you can focus on strategy, not document management.

Responding to a Redfern request? Sputnik finds the relevant documents
Preparing a witness? See every document they signed, sent, or are mentioned in
Drafting a memorial? Sputnik proposes drafts with footnotes linked to evidence
Generates case timelines, entity maps, and structured claim analysis

Works with your AI assistant

Sputnik connects directly to Claude and ChatGPT. Your AI assistant reasons over real case data instead of guessing—grounded answers with citations, not hallucinations.

40+ specialized tools for searching, reading, and analyzing case files
Sputnik fetches only what's relevant, so your AI reasons over large cases without hitting context limits
Works with Claude Cowork and ChatGPT—use the AI you already trust

Works with your AI

Sputnik + AI assistants

Sputnik provides the tools and case data. Your AI assistant does the reasoning. Together, they deliver accurate, grounded legal work.

Recommended

Claude Cowork

by Anthropic

We recommend Claude Cowork for the best experience with Sputnik. Cowork connects directly to your case data and can create Word documents, presentations, and detailed reports.

Reduces hallucinations by 90% with grounded case data
Protects your context window — Sputnik fetches only what's relevant, so your AI can reason over large cases without hitting limits
Over 40 specialized tools for searching files, reading documents, managing evidence, and more
Purpose-built for complex, high-stakes international arbitration

ChatGPT

by OpenAI

Sputnik also works with ChatGPT. Connect your case data and use ChatGPT to analyze documents, answer questions, and draft legal content.

Reduces hallucinations by 90% with grounded case data
Protects your context window — Sputnik fetches only what's relevant, so your AI can reason over large cases without hitting limits
Over 40 specialized tools for searching files, reading documents, managing evidence, and more
Purpose-built for complex, high-stakes international arbitration

Sputnik provides structured case data via MCP tools, so any AI assistant reasons over real evidence instead of guessing.

Case Study

$500M Construction Dispute

The Deadline

The defendant only had 30 days left to answer the complaint.

The Problem

30 days were insufficient to produce a document answering a complaint with more than 300 pages of claims, more than 1,000 claimant files to analyze, define a strategy, and determine documents for the defendant to submit.

Traditional Timeline

Impossible

16 Weeks for Manual Review

Available time: 30 days

The Sputnik Solution

1
Operational in 72 hours
Sputnik delivered a complete, structured evidence base in 72 hours.
2
Targeted Analysis
Sputnik identified inconsistencies in the claimant's case, contrasted claims with submitted documents, and drafted the answer to the complaint.

The Result

10x Faster

A high-quality memorial filed on time, powered by a 10x faster review process.

The Founders

Founders

Peter Van Dijck

Founder, CEO

20+ years in technology and product development

Mateo Posada

Founder, Chief Legal Officer

International arbitration attorney

Our Approach

In complex arbitration, the playing field is rarely level. For too long, outcomes have been dictated by which side can throw more headcount at a problem.

Sputnik solves the problem of scale. We neutralize the headcount advantage so the strength of the legal argument matters more than the size of the budget.

We combine human intelligence and creativity with AI's speed and scale.

AI for high-stakes arbitration.