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GC AI vs Sandstone: Routing the Work, or Doing It?

Sandstone organizes the requests coming at your team. GC AI answers them.

Where high-performing legal teams learn AI

  • Arc'teryx
  • Helix
  • Interface
  • Viant
  • Wayfair
  • SimplePractice
  • Lockheed Martin
  • TIME
  • Landstar
  • Post
  • SKIMS
  • Zip
  • Gusto
  • Riot Games
  • SoftBank
  • Bass Pro Shops
  • Penguin Random House
  • Love's Travel Stops
  • Nestlé

Both are built for in-house. They solve different halves of the problem.

Sandstone positions itself as the operating system for in-house legal: intake, context, and execution across 50+ integrations. GC AI is the analytical desk where the legal work actually gets done.

What is GC AI?

Legal AI built for the lawyer's own work

Contract review and redlining, research with primary-law citations, regulatory monitoring, employment, privacy, drafting, and board prep. A 20,000-line legal system prompt tuned for in-house practice.

Sandstone: An operating layer for in-house legal. Intake, triage, matter routing, context mapping, and reporting across the business stack.

Where does the value land?

The queue versus the answer

Sandstone makes sure the right request reaches the right lawyer with the surrounding context attached. GC AI is what that lawyer opens next to produce the redline, the research memo, or the read for the board.

Sandstone: Its agents handle intake, triage, first-pass redlining, and drafting against your playbooks, standing up in minutes rather than months.

What can you verify today?

Published pricing and a real free trial

$500 per seat per month, published, with a 14-day free trial and no credit card. Test it on your own contracts and research questions before any purchase conversation.

Sandstone: Pricing is not published as of August 2026. Access begins with a demo request.

Compare GC AI vs Sandstone

Both platforms are built for in-house legal teams and both ship AI agents. Sandstone is strongest at getting work organized and routed. GC AI is strongest at the legal analysis that comes after.

FeatureGC AISandstone
CategoryLegal AI platform for in-house counselAI-native operating layer for in-house legal teams
Primary jobDo the legal work: review, research, draft, adviseCapture, triage, route, and report on legal work
Founded2023, San Mateo, California, by Cecilia Ziniti, 3x former General CounselFounded by Nick Fleisher and Jarryd Strydom; $10M seed led by Sequoia, $30M Series A led by Lightspeed in June 2026
Core capabilitiesEasy Prompt, Exact Quote, Playbooks, Research, Skill Library, Projects, Chat2 in WordKnowledge management, intake and triage, agentic workflows, context mapping, natural-language reporting
Legal researchResearch: real-time primary law from authoritative databases and government sources with citationsMulti-source citations within agentic workflows
Contract reviewPlaybooks pre-built for NDAs, DPAs, SaaS MSAs, and commercial MSAs, extensible with your positionsFirst-pass redlining, comment replies, change accept/reject, drafting from templates
CitationExact Quote: character-level citation back to the source documentMulti-source citations
IntegrationsMicrosoft Word add-in synced with the web workspace50+ integrations including Salesforce, Slack, Teams, Jira, ServiceNow, SharePoint, Google Drive, Ironclad
Matter memoryProjects hold parties, negotiated positions, prior guidance, and documents per matter, user-controlledContext mapping across counterparty history, conversations, relationships, and business signals
ReportingNot a reporting platformNatural-language reporting to track, benchmark, and report on legal work
Pricing$500 per seat per month, published; no seat minimumNot published as of August 2026
Free trial14 days, no credit cardNone published; access begins with a demo
EducationGC AI Classes: free, CLE-certified (California), taught by former GCs; 6,000+ lawyers trainedNot published
SecuritySOC 2 Type II, SOC 3, GDPR, ZDR with OpenAI and Anthropic, AES-256SOC 2 certified, AES-256 at rest, TLS 1.3 in transit, SAML SSO, US data residency, no training on customer data
GC AI Playbooks workspace listing official and custom contract playbooks

The redline is where the judgment lives

Routing a contract to the right lawyer with the counterparty history attached is genuinely useful. The work still starts when the lawyer opens the document.

GC AI Playbooks ship pre-built for NDAs, DPAs, SaaS MSAs, and commercial purchase MSAs, and your team extends them with your own positions. Your Playbook flags the issues that matter to your business, not a generic checklist.

At the 2026 GC AI Summit, Taylor Robertson ran GC AI's SaaS MSA Playbook against a live $1M Atlassian agreement. In one click it flagged standard deviations and a unilateral modification clause that fell outside the playbook's rules, catching more than a checklist would.

GC AI Research returning primary law with citations

Most in-house questions are not requests in a queue

An intake layer is measured on the work that arrives through it. A lot of the in-house week never does: the new state privacy law you have to read on, the employment classification question raised in a hallway, the regulatory exposure the board asks about on a Thursday.

GC AI Research runs multi-agent searches across authoritative legal databases and government sources and returns current case law, statutes, and regulations with citations you can click through. The Skill Library ships ready-to-use workflows for NDAs, DPAs, regulatory summaries, and board consents.

That is the half of the job that starts after the request is triaged, and it is the half GC AI was built for.

GC AI Exact Quote showing character-level citation linked to the source document

Character-level citation, because you are the last reviewer

When guidance leaves your desk it goes to the VP of Sales, the CFO, or the board. Nobody checks it first, so every statement has to be traceable in seconds.

Exact Quote gives you character-level citation. Every output links to the precise text in the source document, beyond a page number or a paragraph summary. Click the citation, see the source, verify, send.

Customers reported a 21% accuracy advantage over generalist AI. On GC AI's In-House Legal Bench, published in May 2026, GC AI scored 86.8% across 100 in-house legal tasks graded against 1,200+ attorney-developed criteria.

GC AI Projects holding a matter's documents and history

Matter memory you control, scoped to the matter

Projects give you persistent matter memory: parties, negotiated positions, prior guidance, and deal documents kept together so you never re-brief a matter from scratch. Custom Company Profile tailors GC AI to your templates, writing style, and legal standards.

Both are fully user-controlled. You decide what GC AI remembers and where it applies. Context from one matter stays in that matter.

GC AI only accesses documents you explicitly upload to Files or Projects. If your security team is weighing a platform that connects broadly across the business stack, that narrower surface area is a real difference worth putting in front of them.

GC AI for Word redlining a contract inside Microsoft Word

The whole platform runs inside Microsoft Word

GC AI for Word includes Chat2, saved prompts, Easy Prompt, and Projects. Pull primary law into a redline with Chat2. Run a Playbook against an incoming NDA. Carry matter memory from last week's draft into this week's negotiation. All inside the document, with no context switch.

What you start in the web workspace pulls into Word with one click, and the two stay synced.

Sandstone integrates across 50+ systems including Salesforce, Slack, Jira, ServiceNow, and Ironclad, which is the right shape for capturing requests where they originate. GC AI goes narrow and deep on the surface where the drafting actually happens.

The GC AI Classes page listing what a free Level 101 class includes

We teach the lawyers doing the work right now

Buying a platform is the easy part. Getting a department to use it consistently is where the value compounds.

GC AI Classes are free and CLE-certified (California), taught by former general counsels, covering prompt engineering for legal work, AI-assisted contract review, and building internal AI adoption playbooks. More than 6,000 legal professionals have completed them, with instructor ratings averaging 4.7 to 4.9 stars.

Whichever platform you shortlist, ask what education comes with it beyond product documentation.

Watch a demo of GC AI by Cecilia Ziniti, CEO, Founder and 3X GC

What in-house teams say about GC AI

Katelyn Canning's company logo
The GC AI Word plugin has transformed my legal workflow, allowing me to draft and review documents in a fraction of the time it used to take. What used to be hours of tedious contract review now takes minutes, with the AI instantly flagging potential issues and suggesting precise language improvements that align with our company standards and preferences. The seamless integration with Word means I can leverage powerful legal AI without disrupting my existing workflow, making it an indispensable tool for our legal team.
Katelyn CanningKatelyn CanningDirector and Head of Legal Company
Laura Knight's company logo
GC AI's Word Add-in is in a class of its own compared to other legal AI tools I have evaluated. Its ability to produce a first-pass redline of an agreement against our own templates has significantly reduced the time required to review non-standard contracts. Furthermore, GC AI's capacity to suggest market-standard compromises and provide clear, concise explanations for edits accelerates negotiations and fosters a more collaborative process between parties.
Laura KnightSr Commercial Counsel
Sarah Brownlee's company logo
GC AI for Word has become an integral part of my workflow. Its integration into the online portal ensures seamless communication between the two platforms and helps ensure we're communicating with all stakeholders accurately and efficiently. Most importantly, I appreciate that GC AI continues to listen to their users and improves the software continuously.
Sarah BrownleeSarah BrownleeContract Specialist
Today's victory: my board chair asked me a long time ago for an index of all board resolutions. I can only use the word “collaborate” to describe how I first worked out with GC AI how we were going to do this. I was also mindful of the possibility that GC AI might not be able to remember all of the content since I had about 50 PDF docs to summarize and put into a table. We first worked out what the table would look like, then I uploaded each one and it produced the output in table format for that one doc. And asked me for the next doc. After I uploaded about 10 docs one by one, I asked it to consolidate all the entries into a single table and put it in reverse chron order. It did. I praised it and then fed the rest of the docs one by one. At the end, it produced a consolidated table without any problem. And it asked me if I wanted it to do any more analysis on the data. I'm honestly stunned at how well this worked out. And I also feel like maybe GC AI is turning the tables by giving me positive reinforcement for the approach. That's fine. I welcome the robot army if they will do tasks like this.
General CounselNon-profit Behind Let's Encrypt SSL Certificates
David Morris's company logo
In my experience over the last year, this is the best Legal AI product on the market for in-house lawyers, hands-down. Great work Cecilia Ziniti!
David MorrisDavid MorrisGeneral Counsel at Snyk
Mike Bittner's company logo
As a fractional general counsel for two fast growing technology companies, GC AI for Word has transformed how I handle legal document review and drafting. The integration is seamless, the AI suggestions are remarkably accurate for legal context, and it saves me hours each week. The beta testing experience showed a team that truly listens to user feedback. This tool understands legal nuance in ways other AI tools simply don't. Highly recommended for any legal professional working in Word.
Mike BittnerMike BittnerGeneral Counsel
The GC AI for Word plugin has gone from a curiosity to an essential component of my workflow for contract reviews. The product team has been very responsive as we've identified new issues and proactive about adding new capabilities. It doesn't replace the need to think critically about every redline, but it cuts down dramatically on the time you need to spend on the easy stuff so you can focus on the issues that truly need your attention.
Jacob TewesJacob TewesFractional Legal Counsel
Ora Sheinson's company logo
GC AI for Word is an invaluable multi-purpose legal assistant. It streamlines document management by identifying missing or duplicated clauses while also handling complex document review with precision. The tool excels at flagging potential regulatory issues and enforcement risks, then provides targeted language to mitigate these concerns. As a legal professional, I rely on this tool daily for efficient document drafting and comprehensive review processes.
Ora SheinsonOra SheinsonCLO

Common questions

What Is Sandstone?
Sandstone is an AI-native platform for in-house legal teams that describes itself as the operating system for in-house legal, unifying intake, context, and execution. It embeds into email, Slack, Salesforce, and Jira to capture requests where they originate, maps the surrounding context, and stands up AI agents for intake, triage, first-pass redlining, and drafting. Founded by Nick Fleisher and Jarryd Strydom, it raised a $10M seed led by Sequoia and a $30M Series A led by Lightspeed in June 2026.
How Is Sandstone Different From GC AI?
They sit at different points in the workflow. Sandstone is strongest at the operating layer: capturing requests across the business stack, triaging and routing them with context attached, and reporting on legal work. GC AI is the analytical layer where the lawyer does the work itself: contract review against Playbooks, research across primary law with citations, drafting, regulatory reads, and stakeholder-ready answers. Teams with a heavy inbound request problem and teams with a heavy analysis problem are buying for different reasons.
How Much Does Sandstone Cost?
Sandstone does not publish pricing as of August 2026, and access begins with a demo request. GC AI publishes $500 per seat per month with no seat minimum, a 14-day free trial, and no credit card required, so you can budget the line item and test the platform before any sales conversation.
Does Sandstone Do Legal Research?
Sandstone's agentic workflows return multi-source citations alongside redlining, comment replies, and drafting from templates. GC AI Research runs multi-agent searches across authoritative legal databases and government sources, returning current case law, statutes, and regulations with citations. If a meaningful share of your week is primary-law research, run the same live question through both.
Which Integrates With More Of Our Stack?
Sandstone publishes 50+ integrations spanning Salesforce, HubSpot, Slack, Teams, Outlook, Jira, ServiceNow, Asana, Notion, SharePoint, Google Drive, and Ironclad, which is the right shape for capturing legal requests wherever they originate. GC AI goes deep on one surface instead: GC AI for Word brings redlining, drafting, research, and matter memory into the document, synced with the web workspace. Broad capture and deep drafting are different design goals, and some teams run both.
How Do GC AI And Sandstone Compare On Security?
Sandstone publishes SOC 2 certification, AES-256 encryption at rest, TLS 1.3 in transit, role-based access control with SAML SSO, US data residency, and a commitment that customer data is never used for AI model training. GC AI is SOC 2 Type II and SOC 3 certified, GDPR compliant, and AES-256 encrypted, with zero data retention agreements with OpenAI and Anthropic so prompts and documents are never stored by model providers or used for training. GC AI only accesses documents you explicitly upload to Files or Projects. Every GC AI claim can be verified at trust.gc.ai.
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