Infinitus vs Prosper AI
Two AI Voice & Call Agents vendors, side by side. Facts from public sources; judgments are ours.
At a glance
Derived from public facts · a rough scale, not a ranking
| Infinitus | Prosper AI | |
|---|---|---|
| Pricing model | Enterprise contract (custom) · Platform fee plus per-task or per-minute usage | Not published |
| Speed to go live | Fastest launches near 30 days, usually longer | Claims live in three weeks |
| Automation model | Autonomous agents · AI voice agents call payers | Autonomous agents · Voice agents with QA oversight |
| Built for | Enterprise systems, Payers | Mid-size groups, Enterprise systems, Billing companies |
| Security posture | SOC 2 Type II, HIPAA | SOC 2 Type II, HIPAA |
| Company maturity | 7 yrs (est. 2019) | 3 yrs (est. 2023) |
| Financial backing | $103M · Series C | $35M · Series A |
| Named customers | 3 named | 5 named |
| Published results | Specific numbers public | Specific numbers public |
| Documented integrations | 4 listed | 5 listed |
| Third-party validation | None found | None found |
Bottom line
- Pick Infinitus if you need thousands of benefit verification and prior auth phone calls to payers handled by AI instead of staff.
- Pick Prosper AI if you want one vendor automating both patient-facing and payer-facing phone calls with EHR write-back.
Infinitus
AI voice agents that call payers so staff do not have to
- Founded
- 2019
- HQ
- San Francisco, CA
- Stage
- Series C
- Raised
- $103M
What it does
- AI voice agents call payers and PBMs autonomously
- Automates benefit verification for drugs and medical benefits
- Checks prior authorization and appeal status by phone
- FastTrack bypasses IVR menus and hold times for staff
- AI guardrails constrain what agents can say and do
Where it's strong
- Category pioneer in payer phone automation with over 100 million minutes of healthcare calls completed, so the model has seen most payer phone trees.
- Strong compliance posture (HIPAA, SOC 2 Type 2, HITRUST-certified cloud) and published AI guardrails matter when an AI speaks to payers on your behalf.
- Serves 44% of Fortune 50 healthcare companies, indicating it can pass enterprise pharma procurement.
What buyers should weigh
- Roots and marquee traction are in pharma patient-access programs; provider-side RCM use is newer, so demand provider references.
- It automates the phone call, not the surrounding workflow, so you still need systems to act on the data it returns.
- Per-call economics only beat outsourced call centers at meaningful volume; model your call mix first.
Named customers
Cencora · Fortrea Patient Access · Memorial Hermann Health System
Integrations
Prosper AI
Voice agents that handle patient and payer phone calls
- Founded
- 2023
- HQ
- New York, NY
- Stage
- Series A
- Raised
- $35M
What it does
- Answers inbound patient calls and schedules in the EHR
- Calls payers for benefit verification and prior auth
- Navigates IVR menus and waits on hold
- Automates patient billing and payment collection
- Claims follow-up and status checks
- Prescription refill and switchboard routing
Where it's strong
- Covers both sides of the phone: inbound patient access and outbound payer calls.
- Well capitalized after a $30M a16z Series A, with 40+ care organizations and workflows spanning 150,000 physicians.
- Claims half of calls resolved end to end and go-live in about three weeks.
What buyers should weigh
- Broad scope across many call types means depth per workflow varies; test your highest-volume call type first.
- Named references skew toward specialty outpatient groups, not large health systems.
- Rapid growth after a 2023 founding means processes and support are still maturing.
Named customers
Northeast OB/GYN · Piedmont Plastic Surgery & Dermatology · Serva Health · Firstsource · Imagine Software
Integrations
Compare against the rest of AI Voice & Call Agents
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