Heidi AI vs OpenEvidence
Which Healthcare AI tool is better in 2026?
Heidi AI
Your AI Care Partner for Modern Clinical Practice, supporting clinicians from documentation to decisions and follow-up.
OpenEvidence
AI medical assistant for clinicians
Side-by-side
OpenEvidence is the more established option (raised $735M); pricing is comparable on both sides.
| Metric | Heidi AI | OpenEvidence |
|---|---|---|
| Taglinei | Your AI Care Partner for Modern Clinical Practice, supporting clinicians from documentation to decisions and follow-up. | AI medical assistant for clinicians |
| Foundedi | — | 2022🏆 |
| HQi | — | San Francisco, US |
| Employeesi | — | 50-200🏆 |
| Neuron scorei | 18 | 63🏆 |
| Total fundingi | Undisclosed | $735M🏆 |
| Latest roundi | — | Series D · Jan 2026 |
| Valuationi | — | $12B🏆 |
| Cheapest paid plani | — | — |
| Free plani | ✓ Free | ✓ Free for Verified US Physicians |
| Free triali | ✗ | ✗ |
| Top tier pricei | Enterprise · Contact sales | — |
| Pricing summaryi | 2 published plans | 1 published plans |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Heidi AI and OpenEvidence.
| Capability | Heidi AI | OpenEvidence |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | 2 (TypeScript, Python) |
| Free plan | ✓ | ✓ |
| Free trial | ✗ | ✗ |
| Verified | ✗ | ✓ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Heidi AI
- Strong in AI Healthcare
🔵 Strengths of OpenEvidence
- Has raised more capital ($735M vs Undisclosed)
- Higher Neuron score (63 vs 18)
- Newer company (2022)
- Verified profile
Which should you choose?
Choose OpenEvidence if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Healthcare tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose OpenEvidence if you want the most established option — it has raised $735M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
Heidi AI vs OpenEvidence — which is better?
It depends on your priority. Heidi AI is the leaner option; OpenEvidence has broader feature depth. See the side-by-side table above.
Is Heidi AI cheaper than OpenEvidence?
No — OpenEvidence's cheapest paid plan is Free, while Heidi AI's is Free.
Do Heidi AI and OpenEvidence offer free plans?
Heidi AI: Yes, has a free plan. OpenEvidence: Yes, has a free plan.
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