Infinitus vs Waystar for Prior Auth AI: Full Comparison

Last updated: 2026-03-11

Waystar is the better choice for comprehensive provider-side PA automation, especially if you use or plan to use its broader RCM platform. Infinitus is the better choice specifically for automating phone-based PA calls and benefit verification. These tools can complement each other in a provider's PA workflow.

Key Takeaways

  • Waystar is better for comprehensive provider-side PA automation within a full RCM platform
  • Infinitus uniquely solves phone-based PA bottlenecks that Waystar does not address
  • Organizations already using Waystar RCM should leverage its built-in PA module first
  • Infinitus and Waystar can work together — Infinitus for phone calls, Waystar for electronic PA
Verdictmoderate confidence

Waystar wins

Waystar offers broader PA and RCM automation; Infinitus is better specifically for phone-based PA calls

Feature Comparison

FeatureInfinitusWaystarWinner
PA ScopePhone-based PA calls and benefit verificationElectronic PA within comprehensive RCM platformWaystar
Pricing ModelPer-use pricing per callEnterprise suite licensingInfinitus
Platform BreadthPA phone calls onlyFull RCM suite with PA, claims, billing, and denialsWaystar
Deployment SpeedDays to weeksMonths for full RCM implementationInfinitus
Phone-Based PAAI voice agents handle calls autonomouslyNot a phone-based solutionInfinitus
Vendor ConsolidationAdds a specialized vendorConsolidates PA within existing RCM platformWaystar

Infinitus

Best for: Provider organizations with significant phone-based PA and benefit verification volume

Strengths

  • +Only solution for AI-powered phone-based PA calls
  • +Per-use pricing with minimal risk
  • +Fast deployment without IT integration requirements

Limitations

  • -Phone-based only — no electronic PA automation
  • -Does not integrate with broader RCM workflows
  • -Narrow scope compared to platform solutions

Waystar

Best for: Provider organizations that want PA automation integrated with their broader revenue cycle management

Strengths

  • +PA automation within a comprehensive RCM platform
  • +Vendor consolidation reduces complexity
  • +Strong claims, billing, and denial management alongside PA
  • +Large installed base with enterprise reliability

Limitations

  • -Does not address phone-based PA bottlenecks
  • -PA module is not the core product focus
  • -Enterprise pricing may require purchasing broader suite

Detailed Analysis

Comprehensive PA AutomationWaystar

Waystar provides electronic PA automation within a full RCM context. Infinitus only handles phone calls. For overall PA workflow coverage, Waystar is more comprehensive.

Phone-Based PAInfinitus

Infinitus is the only option that deploys AI voice agents for phone-based PA calls. Waystar does not offer phone-based automation.

Cost Efficiency for PATie

Infinitus offers pay-per-use pricing specifically for PA calls. Waystar bundles PA with broader RCM, which may be more or less cost-efficient depending on whether you need the full suite.

Bottom Line

If you already use or plan to use Waystar for RCM, start with its built-in PA module and add Infinitus specifically for phone-based PA bottlenecks. If you are evaluating PA tools independently, consider the type of PA work you need to automate — electronic submissions favor Waystar, phone calls favor Infinitus.

Frequently Asked Questions

Can I use Infinitus alongside Waystar?

Yes. Infinitus handles phone-based PA calls that Waystar does not address. Using both gives you coverage across phone and electronic PA workflows within your revenue cycle.

Does Waystar's PA module require the full RCM suite?

Typically, Waystar's PA module is part of its broader RCM platform. You may need to evaluate whether purchasing the PA module alone is possible or if it requires the full suite.

Which is better for a small practice?

Infinitus is more accessible for small practices due to per-use pricing. Waystar's enterprise RCM suite is designed for larger organizations with broader revenue cycle needs.

Which has a larger customer base?

Waystar has a much larger overall customer base as a major RCM platform. Infinitus has a growing but smaller customer base focused specifically on phone-based PA automation.