TL;DR: If you are replacing Centaur, the closest options are Docbot, Biocogniv, Semantix. The table below compares 12 alternatives on what they do, stage, size and status.
Every alternative below is compared on what it actually does, not just its category — so you can see which one genuinely replaces Centaur (YC Winter 2019).
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The three closest alternatives to Centaur are:
| Alternative | What it does | Stage | Team | Status |
|---|---|---|---|---|
| Docbot | — | YC Winter 2019 | — | Acquired |
| Biocogniv | — | YC Summer 2020 | 6 | Acquired |
| Semantix | AI for medical billing | YC Summer 2017 | 2 | Inactive |
| Mind Emulation Foundation | — | YC Winter 2018 | 1 | Active |
| Sophys | AI Agents for Healthcare Intake | YC Winter 2022 | 1 | Active |
| Tivara | The AI workforce for medical groups | YC Summer 2024 | 2 | Active |
| Excepgen | — | YC Winter 2019 | 3 | Active |
| Verifiable | API for healthcare compliance | YC Summer 2020 | 12 | Active |
| Simbie AI | We get patients to their next appointment | YC Summer 2023 | 5 | Active |
| Overfit | Human coach for accountability + AI for personalized workouts | YC Summer 2020 | 4 | Inactive |
| Data Driven Bioscience | Cancer Diagnosis 10X faster, 10X cheaper | YC Summer 2018 | 10 | Active |
| Piramidal | Foundation Model for the Brain | YC Winter 2024 | 10 | Active |
It depends on your size. Docbot is the closest match on what Centaur actually does. If you need something more established, sort the table by team size — larger teams generally mean more support and a longer track record. If budget is the constraint, the earlier-batch companies are usually the ones still competing on price.
Centaur is still operating, so switching is a choice rather than a forced migration. Compare on fit and price rather than urgency.
Every company here is Y Combinator-backed and was matched to Centaur on what it actually does — its own description of its product — rather than on a broad category label. Batch, team size and operating status come from the YC directory and are shown as-is. We do not rank by payment.
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