The AI HR Workspace.
Where HR teams do the comp, people operations, training, and compliance work of running a people function. 81 purpose-built AI tools, grounded in your company's own documents.
Not an HRIS, payroll system, or ATS. HRStak runs alongside the HR stack you already have.
What is an AI HR Workspace?
The work of running an HR function isn't the same as the systems that store HR data. Storing employee records, cutting paychecks, and posting jobs are transactional systems. The other side of HR is building the comp philosophy, designing the performance review cycle, generating training, answering manager questions about sensitive employee situations, drafting the multi-state policy, and producing the document the auditor asked for.
This is knowledge work. HRStak is the workspace built for that work: AI-native from line one, grounded in your company's own documents and history.
Systems of record and transactions
- +Store employee records and core profile data
- +Run payroll, benefits, and routine admin workflows
- +Track applicants, jobs, and standard lifecycle events
- +File forms, process transactions, and maintain records
The planning, training, and operating layer for HR
- +Benchmark comp, plan headcount, and run performance cycles
- +Generate training, knowledge bases, and repeatable workflows
- +Answer employee questions with company-grounded AI
- +Write policies, handbooks, and employee communications
HRStak runs alongside your existing HR stack.
HRStak is HRIS-adjacent. Customers keep their existing systems for payroll, employee records, benefits, and applicant tracking, then add HRStak as the AI workspace where the daily work of HR gets done. We integrate via API where it makes sense, and we do not ask you to migrate, replatform, or replace anything.
HRStak
- +Plan comp, performance, and workforce decisions
- +Generate training, knowledge, and automated workflows
- +Answer employee questions and surface compliance risks
Why teams adopt HRStak
Product depth, model routing, company-grounded AI, and an architecture designed around AI from the first line of code.
81 purpose-built AI tools
HRStak ships with 81 AI tools designed for specific HR workflows: compensation benchmarking, workforce planning, training design, performance materials, compliance documents, policy analysis, and more.
The right intelligence for every task
HRStak routes work to the right intelligence for the job automatically. Lightweight tasks get fast, efficient processing. Strategic work gets the most capable AI available.
Grounded in your company
HRStak ingests your handbook, your policies, your org chart, your training documents, and your historical decisions so answers and outputs are grounded in your company's own rules and history.
Built around AI from day one
Vector retrieval, multi-model routing, structured tool workflows, and document grounding are core to the platform. The AI is not bolted on later. It is the product.
Built for the work HR teams actually do
Organize the product around the jobs HR teams are trying to get done, not around a blank chat box.
Run the people work
Support employee workflows, manager handoffs, review cycles, and day-to-day people operations with more consistency and less manual effort.
Plan comp and headcount
Compensation benchmarking, pay band analysis, and workforce planning grounded in your company's existing structure.
Train the team
AI-generated training modules, lessons, assessments, and certificates, built from your knowledge base and ready to deploy.
Stay compliant
Monitor deadlines, keep document requirements visible, maintain audit trails, and support multi-jurisdiction compliance work.
Answer the questions
Give employees and managers access to company-grounded answers through your knowledge base, AI Q&A, and support workflows.
Write the policy
Draft handbooks, policies, compliance documents, and employee communications with AI grounded in your company's own knowledge.
Operate the org
Run knowledge work, operating checklists, planning, and repeatable HR processes inside one AI-native workspace.
Works with the HR systems you already have.
HRStak connects to the tools your team already uses for payroll, HRIS, ATS, comms, and storage. Keep your stack. Add the AI workspace.
Use the docs, files, and internal materials your HR team already relies on as source material for grounded AI work.
Support HR teams already operating in Outlook, Teams, and Microsoft document workflows.
Answer employee questions and route HR workflows into the communication layer teams already use every day.
Ground policy, training, and manager guidance in the files your team already stores.
Bring existing internal documentation into the workspace without forcing a platform migration.
What HRStak deliberately doesn't do
HRStak does not run payroll, process tax filings, store the employee record of truth, run an ATS, or administer benefits. Those are mature categories with their own systems.
- +Payroll and tax processing
- +System-of-record employee data
- +ATS and recruiting administration
- +Benefits administration
- +Forced migrations or replatforming
- +Trying to replace the rest of your stack
We built HRStak for the AI-native, knowledge-heavy, writing-heavy work of running an HR function. If you need an HRIS, payroll system, or ATS, buy one. If you need the AI workspace that runs alongside those systems, that is HRStak.
Enterprise-grade security on day one
Production authentication, team-level data isolation, locked CORS, strong CSP, signed webhooks, and tenant-aware application controls built into the platform from the start.
Production authentication on a custom domain
Access control starts at the front door and carries across the product surface.
Multi-tenant architecture with team-level data isolation
Your documents, workflows, and internal data stay scoped to your tenant.
Webhook signature validation across integrations
Inbound provider events are validated before they are trusted.
Locked CORS, strong CSP, and HSTS with preload
The public-facing site and product are hardened with standard browser controls.
Field allowlists on every mutation path
Only explicitly permitted fields are accepted on sensitive write paths.
Tenant-isolated by design
Your handbook, comp data, employee questions, and internal knowledge stay in your tenant. Your data is never used to train AI models.
Start self-serve or scope Enterprise
HRStak now has three direct Stripe plans for lean HR teams, plus Enterprise for larger rollouts that need custom usage, onboarding, security, or integrations.
For teams ready to start without a sales call
- +$147 Essentials for solo HR production work
- +$297 Workspace for a lean AI HR workspace
- +$497 Compliance + Comp for advanced compliance, compensation, document, and team workflows
- +No forced migration from your HRIS or payroll system
For larger teams with rollout and security needs
- +Full self-serve tool set plus scoped implementation
- +Custom users and usage based on rollout needs
- +SSO and enterprise controls where required
- +Custom integrations and rollout support
- +Dedicated support for implementation and adoption
Compare the full plan chart, then start self-serve or talk to sales for larger rollouts.
Frequently Asked Questions
Bring the AI HR Workspace into your stack
See how HRStak helps HR teams handle the comp, people, training, compliance, and operating work that fills every week.