Infinx vs Rhyme
Two Prior Authorization vendors, side by side. Facts from public sources; judgments are ours.
At a glance
Derived from public facts · a rough scale, not a ranking
| Infinx | Rhyme | |
|---|---|---|
| Pricing model | Enterprise contract (custom) · Software plus services, quote-based | Not published · Network deal terms not public |
| Speed to go live | Standard EHR integration project | EHR integration project plus payer connections |
| Automation model | Tech-enabled service · AI agents plus expert staff | Data / network utility · payer-provider prior auth network |
| Built for | Mid-size groups, Enterprise systems, Billing companies | Enterprise systems, Payers |
| Security posture | HITRUST, SOC 2 Type II, HIPAA | No certifications published |
| Company maturity | 14 yrs (est. 2012) | 12 yrs (est. 2014) |
| Financial backing | $186M reported · Growth (KKR minority stake 2024) | $57M · Venture-backed (Series B era) |
| Named customers | None public | 3 named |
| Published results | No public numbers | No public numbers |
| Documented integrations | 5 listed | EHR-agnostic |
| Third-party validation | None found | None found |
Bottom line
- Pick Infinx if you want prior auth and revenue cycle work handled by a blend of AI and human specialists rather than buying software your staff must run.
- Pick Rhyme if you are a large health system or health plan that wants prior auth handled inside the EHR through a shared payer-provider network.
Infinx
AI plus specialists for prior auth and patient access
- Founded
- 2012
- HQ
- San Jose, CA
- Stage
- Growth (KKR minority stake 2024)
- Raised
- $186M reported
What it does
- AI prior authorization determination, submission, and status tracking
- Eligibility verification and benefits checks in one platform
- Patient pay estimates before service
- Certified specialists work exceptions automation cannot resolve
- AR recovery and denial management services
Where it's strong
- The AI-plus-human model delivers completed authorizations, not just software your staff still has to work.
- Deep roots in high-volume prior auth specialties like radiology, labs, and cardiology.
- Trusted by more than 900 provider organizations, with KKR and Norwest backing.
What buyers should weigh
- Part of the value is outsourced labor, so compare its per-transaction economics against pure software options.
- Named customer references are rare in public materials; case studies are anonymized.
- Broad service catalog means implementation scope needs careful definition up front.
Integrations
Rhyme
Connecting payers and providers for touchless auths
- Founded
- 2014
- HQ
- Columbus, OH
- Stage
- Venture-backed (Series B era)
- Raised
- $57M
What it does
- Submits and tracks prior auths inside provider EHR workflows
- Connects providers and payers on one shared auth network
- Touchless auth processing with real-time payer decisions
- Gold carding programs that waive auths for trusted providers
- Shared payer-provider dashboard for auth status and collaboration
Where it's strong
- A working two-sided network: 80 to 90 of the largest health systems and over 300 payers processing 4 to 5 million auths a year.
- Auths run inside the EHR workflow staff already use, so adoption requires little retraining.
- Its gold carding model removes prior auth entirely for high-performing providers rather than just speeding up submissions.
What buyers should weigh
- Rhyme is connectivity and workflow, not a clinical decision engine; payers still need their own UM review stack (its Medical Mutual deal paired it with Cohere for exactly that reason).
- Value depends on payer overlap; auths for payers outside the network fall back to portals, fax, and phone.
- At roughly $57M raised and a modest team, it is a smaller vendor than RCM incumbents like Availity or Waystar, so weigh long-term durability and roadmap capacity.
Named customers
Medical Mutual of Ohio · Norton Healthcare · Ohio Hospital Association
Integrations
Compare against the rest of Prior Authorization
Deciding between these two?
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