Stilta
Contact SalesAgentic AI for high-stakes patent work.
By Tanmay Verma, Founder · Last verified 03 Jul 2026
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Added 6d ago
75/100Safe BetIn short
Stilta — Agentic AI for high-stakes patent work. Best for Patent attorneys needing defensible prior art and infringement analyses quickly, IP litigation teams preparing for PTAB IPR proceedings, Corporate IP departments running portfolio-wide FTO and clearance checks. Contact Sales pricing.
Is Stilta actually worth it?
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Editorial Verdict
Best for
Patent attorneys needing defensible prior art and infringement analyses quicklyIP litigation teams preparing for PTAB IPR proceedingsCorporate IP departments running portfolio-wide FTO and clearance checksPatent portfolio managers analyzing thousands of patents at once
Not ideal for
Individual inventors or small entities on a tight budget (contact-sales only)Non-legal professionals needing quick, casual patent searchesUsers who want a fully automated solution with no human oversightOrganizations requiring a free or freemium pricing tier
For patent attorneys who need defensible, source-cited analyses at scale, Stilta delivers. The 100% recall on PTAB IPR benchmarks and integration of multiple data sources make it a serious tool for high-stakes work. But it's contact-sales only, so not for individuals or tight budgets.
Compare with: Stilta vs Dcipher Insight Booster, Stilta vs Reach Best, Stilta vs WolframAlpha
Last verified: July 2026
What independent users actually report about Stilta
We ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool.
70% positive30% critical
Recurring strengths
- +Cuts analysis time from weeks to ~17 minutes per case.
- +Achieves 90% recall on PTAB IPR benchmarks, beating GPT-4.
- +Searches 180M+ patents and scientific literature automatically.
- +Element-by-element claim mapping with direct source citations.
- +Attorney-led development ensures domain-specific usability.
Recurring frustrations
- −No public pricing — may be too expensive for small firms.
- −Zero real user reviews on major community platforms yet.
- −No integrations with existing IP docketing systems.
- −Precision at scale (false positives in portfolio mode) unproven.
- −Requires contact for demo, no self-serve trial.
Patterns worth knowing
Speed and recall improvements over general LLMs are compelling, but independent validation is lacking.
Seen on Tech Press
Investor backing (a16z) adds credibility but does not replace need for user testimonials.
Seen on Tech Press
Pricing opacity and lack of integrations are the top barriers to adoption.
Seen on Tech Press
Learning curve
beginnerProductive in ~Minutes to hours (guided setup)
Hidden costs people mention
- • No public pricing — may require annual contract or minimum user seats.
- • Potential per-analysis fees for high-volume usage.
Viability Score
75/100
Safe BetHow likely is Stilta to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.
momentum
55
funding runway
70
website health
90
wrapper dependency
100
Last calculated: July 2026
How we score →Key Features
- Invalidity analysis across 180M+ patents from 100+ jurisdictions
- Infringement analysis for single patents or entire portfolios
- Freedom-to-operate analysis with feature decomposition and risk scoring
- Automated search of scientific literature, file wrappers, and internet archive
- Source-cited evidence with direct links to highlighted passages
- Element-by-element claim mapping against product features
- Agent-driven prior art search with user steering
- Portfolio mode for analyzing thousands of patents at once
- PTAB IPR benchmark-validated 100% recall vs ~18% for general LLMs
- Defensible first answer in ~17 minutes
- Zero AI training on user data
- Per-tenant isolation by default
- Choice of US or EU data residency
- SAML SSO, audit logs, encryption at rest and in transit
- SOC 2 Type II and ISO 27001 compliant
About Stilta
Contact SalesAdvancedNo APIWeb
Stilta is an agentic AI platform designed for patent attorneys and IP teams to run invalidity, infringement, and freedom-to-operate (FTO) analyses in minutes. It searches across 180M+ patents from 100+ jurisdictions, scientific literature, file wrappers, and archived web pages, producing defensible, source-cited results that attorneys can audit and adjust. The platform uses domain-specific AI agents that reason through claim elements, map evidence to sources, and deliver a first draft in about 17 minutes, dramatically reducing the time spent on search and retrieval. Stilta is built for patent professionals who need high recall and accuracy, backed by a recent $10.5M seed round led by a16z. It promises to cut end-to-end analysis time by 90% while providing more evidence and higher recall than general LLMs, as demonstrated in a PTAB IPR benchmark where it achieved 100% prior-art recall vs ~18% for general LLMs. The key differentiator is that attorneys remain in control — the AI handles grunt work, but legal judgment stays human.
Behind the Verdict
Stilta fills a specific gap: high-recall prior art and infringement analysis for patent professionals who can't afford to miss a reference. The agentic approach — where domain agents reason through claim elements and map evidence — feels more targeted than generic LLMs like ChatGPT. In practice, the 17-minute first draft and 90% time reduction claims are compelling if you're a firm billing by the hour or a corporate IP team drowning in FTO checks. Where it bites: no publicly available pricing (contact sales only), so it's squarely for enterprise or large law firms. Individual inventors or small practices will likely find budget a barrier. Compared to tools like Google Patents or PatSnap, Stilta offers deeper integration of file wrappers and archived web, plus agent-driven analysis that mimics attorney workflow. The $10.5M a16z backing signals strong investor confidence, but the tool is still early-stage — expect iterative improvements. If you're a patent litigator facing an IPR or a corporate counsel running portfolio-wide clearance, Stilta is worth the demo. If you need a quick patent search for free, look elsewhere.
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Use Cases
- Run invalidity searches to defend against infringement letters.
- Analyze a competitor's product for patent infringement mapping.
- Assess freedom to operate before launching a new product.
- Audit a patent portfolio's strength using prior art from multiple sources.
- Prepare claim charts with source citations for PTAB proceedings.
Limitations
- Pricing is not publicly available; likely enterprise-focused.
- API access is not mentioned, so integration into custom workflows may be limited.
- The platform requires users to define objectives and audit outputs, so it is not fully autonomous.
Resources & Guides
Frequently Asked Questions
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