Skip to main content
Compare
GC AI vs Sandstone: Choosing the Right Legal AI for In-House Counsel
Sandstone organizes the work coming into your legal team. GC AI does the work. Here is when in-house teams run an operating layer, a legal AI platform, or both.
Why In-House Lawyers Need Purpose-Built Legal AI
What is GC AI?
GC AI is an enterprise-grade legal AI platform trained specifically for in-house legal work. It connects your company’s contracts, policies, and data sources with the intelligence of modern LLMs, delivering precise, contextual answers that help legal teams accelerate business decisions. Unlike generic AI, GC AI understands contracts, compliance, and company context, so every answer aligns with how your business and legal team operate.
1,900+ in-house legal teams use GC AI daily, including 80+ public companies and 25 unicorns. In our December 2025 study of 100+ active customers, teams reported:
14 HRS
Saved per week per lawyer
14%
Reduction in outside counsel spend
21%
Greater accuracy than generalist AI
97.5%
See value in month 1

GC AI's CEO and co-founder, Cecilia Ziniti, was a general counsel three times (Anki, Bloomtech, and Replit), in-house counsel at Amazon and Cruise, and started her career in-house as a paralegal at Yahoo.
Ziniti built GC AI to solve the problems she encountered firsthand as an in-house lawyer. That experience is embedded directly into GC AI's system prompt, tone, and workflows.
Compare GC AI vs Sandstone
Product category
Enterprise legal AI platform
AI-native legal operating layer
Primary buyer
The in-house lawyer doing the legal work
Legal operations running intake at small and mid-sized companies
Built for
The in-house lawyer's full analytical workload
The legal team's intake, coordination, and workflow
Core use case
Contract review, redlining, research, drafting, employment, privacy, board prep, stakeholder communication
Intake, triage, routing, matter and obligation tracking, contract repository, reporting
AI capabilities
Easy Prompt, Exact Quote, Playbooks, multi-agent Research, Skill Library, Chat2 in Word
AI intake and triage agents, Context Map, Living Playbooks, agentic redlining and drafting, multi-source citations
Research backbone
LLM models grounded by Exact Quote character-level citations plus multi-agent primary-law research
Knowledge retrieval across the customer's own repository and integrated tools
Word integration
Native: GC AI runs inside the Word document to redline, draft, issue-spot, and run web research as you read
Word is one of 50+ connectors; documents sync in and out, the analysis happens elsewhere
Pricing
$500 per seat per month, published
No public pricing (demo only)
Free trial
14-day, no credit card
Demo only
Security
SOC 2 Type II, SOC 3, GDPR, ZDR with OpenAI and Anthropic, AES-256
SOC 2, AES-256, TLS 1.3, US-hosted, contractual no-model-training
Best for
AI-powered contract review, research, and drafting for in-house teams
Coordinating and routing legal work for mid-market teams
Sandstone capabilities verified against Sandstone’s website as of July 2026.
What GC AI Delivers for Your Legal Work
Here is how these differences show up in your daily workflow.
Watch a demo of GC AI by Cecilia Ziniti, CEO, Founder and 3X GC
Calculate Your ROI with GC AI
We asked 100+ customers what changed after adopting GC AI. They reported a 14% reduction in outside counsel spend, which translates to approximately $252,000 in annual savings for the median company.
See what those numbers look like for your team.
Case studies
What In-House Teams Say About GC AI
Who Should Choose Sandstone vs GC AI?
Three scenarios cover most of the decision.
Choose Sandstone If
Your bottleneck is coordination: work lands in five inboxes, a Slack channel, and a procurement tool, and nobody can see the queue.
You need a system of record for matters, obligations, and contracts, plus reporting on how the team spends its time.
You want AI woven into intake, triage, and routing, where the legal team's workflow already lives.
Legal operations owns the buying decision and runs intake for the whole department.
If those describe your team, Sandstone is on the right shortlist, and the decision is between Sandstone and other legal operating layers.
Choose GC AI If
You are in-house counsel where contract review is one slice of a broader analytical workload: regulatory, employment, privacy, drafting, research, and stakeholder communication.
Your bottleneck is the judgment-heavy work that lands on the lawyer's desk, not where it gets routed.
You want self-serve onboarding, published pricing, and a real free trial, not a rollout.
You want the legal AI platform that runs inside Microsoft Word, where the analytical work already happens.
You want every answer cited at the character level, ready to send to the CEO, the board, or outside counsel.
If those describe your team, GC AI is the answer, and an operating layer becomes a future buy when intake volume justifies it.
Choose Both If
You run Sandstone (or another operating layer) for intake and routing and want a separate platform for the legal analysis.
Your lawyers handle regulatory, employment, privacy, and board work that sits outside any intake queue.
Frequently Asked Questions
Get started today.
1,900+ in-house legal teams chose GC AI over Harvey. Run research, redline contracts, and brief your execs with the legal AI built by a 3x GC.













