How We Wrote This Comparison
We make Obsidyan, so we aren't neutral. We've stuck to what vendors and independent reviewers publish, said where each tool is the better choice, and listed Obsidyan's limits. Pricing outside Obsidyan comes from third-party estimates, because these vendors don't publish rate cards. We last reviewed this guide in November 2026.
What to Look For in an AI Patent Drafting Tool
- Who it's built for — tools for patent attorneys assume you know the process. Tools for inventors guide you through it.
- Where you work — inside Microsoft Word, or in a browser.
- How you buy — self-serve, or through a demo and contract.
- What it covers — drafting only, or also prior art, prosecution and infringement work.
- Confidentiality — how your unpublished invention is stored, and how it's processed by AI models.
DeepIP: Drafting Inside Microsoft Word
DeepIP runs natively in Microsoft Word and is aimed at law firms and corporate IP departments. It has no public rate card, and a third-party review estimates about $350 to $420 per user per month.
Best for: attorneys who want to stay in Word.
Solve Intelligence: A Browser Editor for Patent Professionals
Solve Intelligence is a browser-based tool covering prior art harvesting, drafting and prosecution responses. It has no public rate card, and a third-party estimate puts it at about $775 per user per month.
Best for: patent attorneys drafting and amending at volume.
Patlytics: Broad Patent Intelligence
Patlytics spans drafting, prosecution, invalidity and infringement work, including claim charts. It has no public rate card, and third-party estimates run from about $800 to $2,000 per user per month.
Best for: firms and in-house teams who need litigation and portfolio analysis alongside drafting.
Obsidyan: Guided Drafting for Inventors and Startups
Obsidyan is a browser workspace. It interviews you about your invention by text or voice, drafts claims, a specification and drawings, and gives you filing checklists for the US, Europe, China and Japan. Credit packs start at $9.99 with no subscription, and there's a REST API and built-in MCP server.
Best for: inventors, startups and technical teams who want a strong draft before paying for attorney time.
Its limits: there's no Word add-in, its prior art search is a starting point covering US records rather than a complete search, and it doesn't do infringement work. Obsidyan isn't a law firm, so have a registered patent practitioner review your application before filing.
How to Choose
- Pick DeepIP if your attorneys draft in Word.
- Pick Solve Intelligence if you're a patent professional who wants a dedicated browser editor.
- Pick Patlytics if you need infringement and portfolio analysis as well as drafting.
- Pick Obsidyan if you want to start today, without a sales call or a per-seat contract.
For more detail, read Obsidyan vs DeepIP, Obsidyan vs Solve Intelligence and Obsidyan vs Patlytics, or see how AI patent drafting works in Obsidyan.
