Best AI Agents for Businesses: Compare AI Employees, Not Just Tools

Which AI agent fits your business?

The distinction matters. Buying an agent-building platform gives your team tools to create an operation. Hiring a managed AI employee gives you a team responsible for implementing and maintaining the agreed assignment.

1. Susan: for businesses that want a customized, managed AI employee

Susan works like a staffing agency for AI employees. Bring the job description, show us how the work is done, and our team builds and manages the agent for that role.

That starts with the work already happening in your company—not a template your employees must adapt to. Susan’s engineering team works with your process owners, learns the systems, captures the rules and exceptions, and turns those instructions into a recurring operation.

Keep the software. Change who does the preparation.

Susan supports more than 3,000 app connections. When work requires a website rather than an API, the agent can operate a browser on its own dedicated computer: opening records, navigating portals, uploading files and checking the result. Your team can watch the on-screen work or take over.

Assignments and results can stay in the channels your employees use, including Slack, Microsoft Teams and Zoho Cliq. The aim is to remove repetitive execution from the team’s day, not add another place to chase it.

The implementation team is part of the offering

In one billing deployment, Susan’s engineers spent two weeks working with the invoicing team to collect the rules and exceptions before the agent became highly autonomous. A client discount, a one-time concession and an adjustment for inefficient work cannot all be treated as the same instruction.

The team mapped those differences, configured the workflow and established the supervision around it. Implementation, customization and ongoing supervision are included in a fixed cost for the agreed scope.

Choose Susan when you want to delegate a recurring job and have an operating team behind the AI employee. This is particularly useful for accounting firms and service businesses where work crosses systems and the rules vary by client, entity or office.

See the billing-agent deployment and WIP reporting workflow for specific examples.

2. Viktor: for an AI coworker inside Slack or Teams

Viktor puts an AI coworker directly into Slack or Microsoft Teams. Its documentation describes connecting business tools, assigning work conversationally and setting up scheduled tasks.

A representative assignment might be to collect revenue figures, compare the current week with the previous one and return the analysis in the team’s channel. Viktor also documents tasks spanning reporting, marketing, engineering and operations. Viktor documentation.

Choose Viktor when your team wants a shared, general-purpose coworker it can start assigning work to through chat. For a recurring role with detailed company rules, make process configuration, output checks and ongoing ownership part of the evaluation.

The Susan buying decision starts with commissioning the role and its managed implementation. The Viktor starting point is adding a connected coworker to the team. Read our Susan and Viktor comparison for a closer look.

3. Lindy: for connected teamwork, scheduled tasks and reusable skills

Lindy markets an AI teammate that works across company tools. Its current product includes scheduled assignments, shared meeting context, editable memory and reusable skills that a team can save and use again.

Its published examples include inbox work, CRM updates, reports, dashboards and vendor research. That makes it relevant for teams that want to connect their information and develop repeatable ways of working with an AI teammate. Lindy product overview.

Choose Lindy when reusable skills and connected day-to-day collaboration are central to the job. Evaluate it with an actual recurring assignment: the source records, required output, company context and approvals should all be represented.

For Susan, the emphasis is on the team that maps, implements and supervises a customized operating role. For Lindy, examine how its skills, memory and connected workspace fit the way your team wants to assign and oversee work.

4. Relevance AI: for teams building and operating their own AI workforce

Relevance AI is a platform for building, running and managing AI agents. It provides production controls including triggers, task queues, evaluation and monitoring, with tools for operations teams and domain experts to manage agent quality.

This is an important option when a business wants an internal capability: people close to the work configure the agents and use the platform to run the operation. Relevance AI platform.

Choose Relevance AI when your company wants to own its agent program and has people responsible for operating it. The evaluation should include how those people review runs, test a changed instruction and resolve an exception.

Relevance AI gives your team a platform for that responsibility. Susan packages the customized employee with the team that implements and manages the agreed workflow. The choice is as much about your operating model as your software preferences.

5. Zapier Agents: for agents across connected business applications

Zapier Agents lets teams build AI agents that work across Zapier’s broad application ecosystem. Its published examples include lead qualification, meeting preparation, support-email handling and expense categorization.

For companies already connecting work through Zapier, it is a natural candidate for an agent layer across those systems. Start with the records that trigger work, the actions required in each application and the output your team will use. Zapier Agents.

Choose Zapier Agents when application connectivity and building your own recurring workflows are the main priorities. Evaluate the exact actions, access requirements and monitoring for the assignment—not just whether an application appears in the integration directory.

Susan is the alternative when you want to hand the assignment to a managed implementation team instead of owning that project internally.

What work can an AI employee take off your team’s plate?

Start with a job whose inputs and finished output can be checked. The strongest opportunities are often the operational tasks employees repeat every week, with more rules and exceptions than a simple automation can comfortably express.

Billing: turn client rules into invoice drafts

In Susan’s invoicing deployment, the agent gathers work records, applies documented billing instructions, prepares drafts in Zoho Books and routes exceptions to the team in Zoho Cliq. A recurring discount follows its recorded rule; a new special concession goes to the appropriate person.

The published case covers 513 completed invoice records across three observed weekly windows. Susan measured approximately six minutes of agent processing per invoice, compared with the team’s approximately 15-minute manual preparation estimate. At least 10% of weekly invoices still involve human intervention or feedback for exceptions such as special discounts and unusual situations.

The useful result is a prepared invoice with a traceable basis—not just a faster response in chat.

WIP reporting: keep unbilled work visible

A WIP analyst agent can maintain review queues, track changes and preserve the team’s responses across reporting periods. Susan’s WIP reporting deployment shows how recurring preparation becomes a review process with history attached.

The output gives managers a consistent place to decide what needs follow-up. Reporting on unbilled work is a distinct assignment from creating invoices or recording payments.

Onboarding: coordinate records, folders and ownership

Susan also supports onboarding workflows spanning HubSpot, Karbon, Google Drive and Keeper. The job includes bringing client information into the right systems and assigning each client’s owner.

A useful definition of done includes the destination records and ownership—not simply that the agent read the intake file. That pattern applies to many service-business workflows where staff repeatedly transfer information between systems.

Give every AI agent the same hiring test

Compare providers using one real job, one ordinary example and one difficult example. This makes the evaluation about work delivered rather than the quality of a prepared demonstration.

Then ask each provider to demonstrate these five things:

1. The work: open the finished output in the destination application.
2. The basis: show which source records and instructions produced it.
3. The exception: show what happens when the new concession appears.
4. The handoff: show where the manager responds and how the decision is recorded.
5. The next run: explain how a corrected rule reaches the following assignment.

This test comes from the practical distinction in Susan’s billing work: documented rules can be executed repeatedly; new commercial decisions need a clear owner. It is a useful evaluation pattern for reporting, onboarding and other recurring jobs too.

How to introduce AI agents into your business

The best first assignment is frequent enough to matter, specific enough to teach and clear enough to verify.

1. Pick the job you keep hiring or reallocating staff to do

Look at recurring preparation, data transfer, document handling and reporting. Write the actual responsibilities rather than a broad title such as “finance assistant.” Start with a defined workload, then expand from demonstrated results.

2. Record the process—including the exceptions

Firms with detailed, documented processes are best positioned to benefit from AI agents. Record the complete workflow, explain why each decision is made and capture the variations by client, office, state, country or entity. Do not leave essential operating knowledge only in employees’ heads.

Susan’s team can work alongside your employees to map the process. Existing recordings and clear documentation give that work a stronger starting point.

3. Establish the result and the owner

Decide what the agent should deliver, what checks it must pass and who receives exceptions. For accounting and tax work, identify the person responsible for professional decisions and authorized submissions. A defined approval path helps the rest of the workflow move without repeated uncertainty.

4. Measure accepted work

Track completed outputs, time to completion, corrections, unresolved exceptions and staff handling time. Compare the same scope before and after implementation. These measures show whether the agent is giving your team usable capacity.

For a CPA practice, continue with our accounting AI agent comparison or managed CPA agent offering.

Questions businesses ask before hiring an AI agent