On this page
At twenty people there is no HR department. There is a person who also does HR, usually the founder, sometimes the office manager, occasionally whoever looked least busy in March.
The work does not arrive as a workflow. It arrives as interruptions. Can I take Friday off. Where is the offboarding checklist. What is our notice period. Did the new joiner get a laptop, and did anybody send the offer letter for signature. Each one takes four minutes and costs an hour.
Every other page ranking for this search assumes you already solved that with software. They compare Workday Illuminate against SAP SuccessFactors against Oracle, which is a genuinely useful page if you own an HCM and employ a procurement team. Under fifty people you have neither. You have a spreadsheet, a payroll tool and a channel where people ask questions.
So this list is ordered by what you already own, starting from owning nothing. My own product is first and I say why. The comparison table is two screens down if that bothers you.
One thing to know before the list: almost nobody in this category publishes a price.
- No HR system at all: Gravity. You describe the task, an agent somebody already built and tested runs it, and the first one is free.
- You already pay for BambooHR: BambooHR, because the automation sitting on your existing employee record beats a second subscription beside it.
- Onboarding keeps failing at the laptop: Rippling, where accounts, permissions and devices hang off the same record as the hire.
- You run Workday: Workday Illuminate. Its agents are scoped to Workday processes on Workday data, which is exactly the advantage you paid for.
- You run SAP or Oracle: SuccessFactors or Fusion Cloud HCM. Same answer as Workday, different logo on the invoice.
- You hire hourly staff in volume: Paradox, which screens and schedules over text message.
- Thousands of employees filing the same ticket: Leena AI.
- Budget is zero: a shared inbox and a general assistant. Works beautifully until the fourth new joiner.

How I compared them
Five questions, asked of everything on this page. They separate these tools faster than a feature grid ever has:
- Who does the work? Either you configure a system and then operate it forever, or somebody else's agent runs the task and hands you the exception.
- Does it need an HCM underneath it? Most of the AI in this category is a feature of a suite you have to buy first. That single fact removes most of the search results for a company of twenty.
- Can you find out what it costs? A published price means you can decide on a Tuesday afternoon. A quote means two calls, a discovery deck and a fortnight of your life.
- What happens when it gets something wrong? HR mistakes land differently from marketing mistakes. A wrong leave balance is an argument, and a missed offboarding step is a live account belonging to somebody who left in June.
- How fast does a person outside HR get a result? Minutes, a day, or a six-week implementation with a partner attached.
Where a vendor publishes a price, it appears here with the month attached. Where a vendor does not, the row says pricing on request and I have left it there. I have not estimated, and I have not copied a figure off a comparison site that copied it from another comparison site. I have also not run nine HR tenants side by side, because nobody outside those companies gets honest access to nine tenants. Where I describe a product, I am describing what the vendor itself publishes about it.
There is a faster test than reading eight sections. Describe the HR task to Gravity in one sentence and see whether an agent for it already exists. The first one runs free, no card.
Quick comparison
| Tool | What it is | Who does the work | Starting price (Sep 2026) | Free tier | Best for |
|---|---|---|---|---|---|
| Gravity | AI agent platform, expert-built agents | The agent. You describe and approve. | $20/mo Autopilot worldwide; in India ₹399 Minipilot or ₹1,999 Autopilot | First agent free | HR tasks at a company with no HR system |
| BambooHR | HR record for small and mid-size companies | You and whoever administers it | $10 per employee a month on the Core plan, published on its pricing page; the exact bill still comes by quote | None published | Teams that want the employee record first |
| Rippling | HR, payroll and IT on one employee record | You configure, it provisions | Pricing on request | None published | Onboarding that includes accounts and devices |
| Workday Illuminate | AI agents inside Workday HCM | The agent, inside Workday | Pricing on request, metered in Flex Credits | None | Companies already running Workday |
| SAP SuccessFactors | HCM suite with an AI assistant across it | The assistant, inside SAP | Pricing on request | None | Companies already running SAP |
| Oracle Fusion Cloud HCM | HCM suite with AI agents in the suite | The agent, inside Oracle | Pricing on request | None | Companies already running Oracle |
| Paradox | Conversational hiring assistant | The assistant, over text | Pricing on request | None | High-volume hourly hiring |
| Leena AI | Employee service desk agent | The agent, in chat | Pricing on request | None | Large workforces asking repeat questions |
| Shared inbox plus a general assistant | An hr@ alias, a handbook, a chat assistant | Still you | Whatever you already pay for the assistant | Varies by vendor | Under ten employees |
Six of the nine rows have no price you can read without booking a call. For the HCM suites and the enterprise agent vendors the number arrives in a sales conversation, which is worth planning around when you are twenty people with nobody to send to that meeting. Gravity's prices are as of September 2026.
1. Gravity: for the team with no HR system at all
This is my product, so weigh it accordingly. It sits first because it is the only option on the page that assumes you own nothing underneath it: no HCM, no HRIS, no implementation partner, no admin to configure.
You type the task in plain words. Gravity matches it to an agent a builder already made and tested, you sign in to the accounts it touches, you answer a few setup questions, and it runs on a schedule.
The HR jobs that fit are the repetitive ones a small company does badly because nobody owns them. Chasing a signed offer letter. Driving an onboarding checklist to completion. Answering the same leave-policy question out of your own handbook. Assembling the list of every account a leaver still holds. Gmail, Sheets, Calendar, Drive, Slack and Notion connect through an ordinary login, and you never paste an API key.
Steps that message a customer or move money wait for your approval. Every agent passes automated checks before it is listed, and a run that fails on a platform error with no usable output is refunded under the refund policy.
Where the work actually lands
The agent takes the chasing and the drafting. You get the exception: two people have not signed, one of them is on leave, and the third has asked something only you can answer. That is the shape of the handover, and the judgement calls stay with a human on purpose.
Pros
- Nothing to configure, host or implement
- Built and tested by somebody who does that task for a living
- The price is on the page, readable in a minute
- Runs off Gmail, Sheets, Drive and Slack with no HR system underneath
- Platform-error runs are refunded
Cons
- No blank canvas, only published tasks
- It is not a system of record, so employee data stays where it already lives
- Private alpha, so the catalogue is still short
- Wrong tool for payroll filing or anything needing a compliance trail inside an HCM
- Best for
- The founder or office manager doing HR between two other jobs, at five to fifty people.
- Pricing
- First agent free, no card. Then Autopilot at $20 a month worldwide, ₹1,999 a month in India, with a lot of usage included. India also has Minipilot at ₹399 a month with a smaller allowance. Buy more usage if you run out. As of September 2026.
- Free tier
- Yes. One agent, free.
- Verdict
- If HR at your company is a person being interrupted rather than a process being run, this is the shortest route out. Employee onboarding in Gusto is the closest worked example.
2. BambooHR: start here if you already hold the record
BambooHR is the HR system of record that small and mid-size companies actually buy: employee files, time off, onboarding checklists, signatures, reporting. If it is already on your card, the first move is using what sits inside it before adding anything alongside.
It also happens to be where the clearest test of this whole category lives. A time-off request takes ten seconds to approve. The cost is the context switch, multiplied by every employee, every month, forever. Automate the request and the approval looks after itself.
The PTO request is the test case
A useful agent here does more than click approve. It reads the request, checks the balance and the team calendar for clashes, tells the person what their remaining balance will be, and escalates only the ones that need a decision from you. I wrote up the full version in an AI agent for BambooHR PTO requests.
- Best for
- Companies of roughly 25 to 500 people that want the employee record solid before they automate anything on top of it.
- Pricing
- The Core plan is listed at $10 per employee a month on BambooHR's own pricing page, read 14 September 2026. It is the one published rate in this comparison besides ours, though every plan button still routes to "Get Quote", so treat the listed rate as a starting point rather than your bill.
- Free tier
- None published.
- Verdict
- If BambooHR already holds your people, the cheapest improvement available to you is stopping the routine requests inside it from landing on a human at all.
3. Rippling: when onboarding is really an IT job
Rippling's pitch is one employee record behind HR, payroll and IT together. Hire somebody in it and that same record can open the accounts, set the permissions and get a laptop to their door, which is the part that breaks at most small companies in week one.
It matters more on the way out. Closing the HR file is the easy half of offboarding. The hard half is every account, shared login and SaaS seat nobody inventoried, and that half is usually still open three months later. Read employee offboarding before you decide whether you need a system for this or an agent for it.
Price arrives as a quote shaped by which modules you take. Ask for it with your real headcount and your real module list, because the bundle is where the number moves.
4. Workday Illuminate: the right answer if you already run Workday
At Workday Rising in September 2025, Workday named a set of Illuminate agents for HR and Finance. A Case Agent for employee case handling, a Performance Agent for reviews, a Job Architecture Agent for job ladders, an Employee Sentiment Agent, a Business Process Copilot Agent. Each is scoped to one process inside Workday, running on Workday data. The announcement said the new agents "will be available in 2026" and carried the standard forward-looking disclaimer, so check your own tenant before planning a quarter around any of them.
Beside them sits the Workday Agent System of Record, which is not an agent at all. It is a registry for every agent operating in your business, third-party ones included, with permissions, monitoring and cost reporting over the top.
Flex Credits, and what your bill does
Workday introduced Flex Credits alongside the agent announcements and describes it as a subscription-based consumption model: an allotment included in your subscription and renewed annually, more available as usage grows, and fungible across agents and platform innovations. Workday does not publish per-agent list pricing, so any specific dollar figure you find in a third-party post about it is a guess. What Workday actually ships under "AI agent" goes through the full named list and the registry.
Pros
- Agents scoped to processes you already run, on data already governed
- A stated answer to who governs the agent fleet, including agents Workday does not sell
- No integration project, because it is the same suite
Cons
- You need Workday first, which prices out of reach long before twenty people
- The 2025 announcement described availability, which is not the same as capability in your tenant
- Agent capacity becomes a line you negotiate at renewal
The registry half of that announcement is the more interesting half and it barely gets covered. The Workday AI agent breakdown walks through the named agents, the Agent System of Record and the work Illuminate agents cannot see.
5. SAP SuccessFactors and Oracle Fusion Cloud HCM: same logic, different suite
These two are on the page for the same reason Workday is, and the advice is identical. SAP has pushed its assistant, Joule, across its applications including SuccessFactors. Oracle has been adding AI agents inside Fusion Cloud HCM. If your company already runs either one, the agents that come with the suite are the ones to use, because they sit on the employee data and the approval chains you already configured.
If your company runs neither, nothing on this page is further away from you. Both are sold through a sales process, priced by module, seat count and negotiation, and implemented with a partner over months. No number appears on a web page. None of that is shaped for a company without a procurement function.
Worth saying plainly, because the roundups ranking these suites for HR AI agents rarely mention it. A ranked list of enterprise HCM agents is a shopping list for a committee, and most people searching this term do not have one.
6. Paradox: for hiring in volume, over text
Paradox sells a conversational hiring assistant called Olivia that works the front of the funnel where hourly candidates actually are, which means text messages, because email goes unread. Screening questions, interview scheduling, reminders, rescheduling when somebody does not turn up.
The buyer is a company hiring hundreds of people a year into shift work: restaurants, retail, warehouses, care homes. At that volume the scheduling alone is somebody's full-time job, and speed of reply decides who takes the shift and who takes an offer from the place down the road.
Who this is genuinely built for
If you hire six people a year, this is the wrong page for you, and the vendor would probably say the same on the call. AI agents for recruiters covers the version of this work that fits a small team doing a handful of roles at a time.
- Best for
- High-volume hourly hiring where reply speed decides who shows up on day one.
- Pricing
- Pricing on request, through a demo, as of September 2026.
- Free tier
- None.
- Verdict
- The strongest option here for one specific job, and beside the point for everything else on an HR to-do list.
7. Leena AI: the employee service desk at scale
Leena AI answers the employee question before it reaches a person. Where the form is, what the policy says, how much leave is left, why the reimbursement has not landed yet. It is aimed at large workforces and it is usually bought by an HR shared-services team that measures ticket volume every month.
The economics need that volume. Deflecting thousands of repeat questions a month pays for an enterprise contract comfortably. Four questions a week does not, and that is closer to what a twenty-person company generates. Price is on request, which at that size ends the conversation before it starts.
8. A shared inbox and a general assistant: what most small teams already do
This is the honest baseline, and leaving it off would turn the page into a brochure. An hr@ alias, a handbook in a shared drive, a folder of templates, and ChatGPT or Claude open in a tab to draft the offer letter and rewrite the policy paragraph nobody can parse. It costs whatever you already pay for the assistant.
For the first ten employees it genuinely works. Volume is low, the founder knows every answer without looking it up, and a drafting tool removes the slowest part of the job, which is writing things.
The point where it stops working
It stops the moment the task becomes a chase rather than an answer. An assistant will draft a perfect reminder. It will not notice on Tuesday that two people never signed, will not check the balance before the leave is approved, and will not close the accounts belonging to the person who left last month. Somebody still has to remember all of it, and that somebody is the person you were trying to stop interrupting.
When you reach that point, pick the single job you keep dropping and buy for that one.
Take the HR task that interrupted you most this week and hand it to an agent. It takes a sentence to describe and the first agent is free. No card, no implementation call, no HR system required underneath it.
Which one should you choose?
Start from what you already pay for, because most of this page is only sold as part of something larger.
If you run Workday, use Illuminate. Its agents sit on your data and your approval chains, and nothing you bolt on beside it gets that advantage for free.
If you run SAP or Oracle, the same logic holds and so does the same caveat. Check what is switched on in your tenant this release, and treat conference announcements as a roadmap with no delivery date attached.
If you run BambooHR, the automation inside it comes before any new subscription. That goes for Gusto, Rippling, Darwinbox, Dayforce, UKG, ADP and Paycom too, all of which have been adding AI across their suites. How much you can find out before a call varies more than you would expect. Gusto publishes its Simple plan at $49 a month plus $6 per person, and BambooHR lists Core at $10 per employee a month. Rippling's pricing page, read on 14 September 2026, publishes no figure at all and answers with a custom quote. Check your own vendor's page before you assume you need a sales call.
If onboarding keeps failing at the laptop and the Google account, you have an IT provisioning problem wearing an HR costume. Rippling is built for exactly that shape, and no amount of HR software fixes it.
If you hire hourly workers in volume, Paradox. If you have thousands of employees filing the same ticket, Leena AI. Both of those hold at any budget, which is unusual on this page.
If you own none of it, you have two honest options. Keep doing HR by hand with a general assistant to speed up the writing, or hand the specific recurring tasks to agents built for them.
My bias, stated plainly: under fifty people I would take the second, and I would start with whichever task interrupted me most this month. In Gravity the first agent is free and there is no card, so the experiment costs an afternoon at the outside.
Whatever you pick, pick for one task first. AI agents for every profession runs the same argument across the other jobs in your company.
FAQ
What can an AI agent actually do for HR at a small company?
The repetitive chasing and answering. Time-off requests logged and acknowledged, onboarding checklists driven to completion, policy questions answered out of your own handbook, offboarding access lists assembled, signed documents chased until they arrive. It does not decide who gets promoted, and it belongs nowhere near a termination conversation.
Do I need an HR system before I can use an AI agent for HR?
No. An agent can work off what a twenty-person company already has: Gmail, a shared drive, a spreadsheet of employees, a payroll tool. A proper HR record makes some tasks cleaner, and most of the enterprise options on this page require one, but it is not a precondition for getting the work off a person.
What does an AI HR agent cost?
For most of the products on this page you cannot find out without a sales call. Six of the nine rows in the comparison table publish no price at all. Gravity runs your first agent free with no card, then Autopilot is $20 a month worldwide, 1,999 rupees a month in India, with a lot of usage included.
Will an AI agent replace the person who does HR?
At twenty people there is usually no such person to replace, which is the whole problem. What an agent removes is the interruption: the same five questions, the checklist nobody finished, the document that never came back signed. Keep a human on anything touching pay, performance or someone's last day.
Is it safe to give an AI agent access to employee data?
Treat it like any other system holding personnel records. Connect it through a normal sign-in and keep API keys out of it, give it the narrowest access that does the job, keep pay and performance data out of scope unless the task genuinely needs them, and read what the vendor says it retains. If a vendor will not put retention in writing, that is your answer.
Which AI agent is best for HR onboarding?
If you already run an HR system, use its own onboarding automation first, because it holds the record and the approvals. If you do not, onboarding is a chase across email, a drive and a payroll tool, which is exactly the shape a task agent handles. Employee onboarding in Gusto walks through one version of it end to end.
Sources
- Workday newsroom, "Workday Illuminate Expands with New AI Agents for HR, Finance, and Industry", 16 September 2025. Backs the named Illuminate agents, the Flex Credits model and the "available in 2026" availability line.
- Workday, "Workday Agent System of Record". Backs the registry description and the registration of third-party agents.
- BambooHR, "Plans and Pricing". Lists Core at $10 per employee a month; every plan button routes to "Get Quote". Retrieved 14 September 2026.
- Rippling, "Pricing". Publishes no figure and answers with a custom quote. Retrieved 14 September 2026.
- SAP, "Joule AI assistant for HR". SAP's own page for Joule inside SuccessFactors, and the source for the assistant name. Retrieved 14 September 2026.
- Oracle Fusion Cloud HCM, September 2026.
- Paradox, September 2026.
- Leena AI, September 2026.
- Gravity pricing, September 2026.