OpenEvidence vs Periodic Labs
Which Healthcare AI tool is better in 2026?
OpenEvidence
AI medical assistant for clinicians
Periodic Labs
Creating AI scientists and autonomous laboratories to accelerate scientific discovery, starting with physical sciences.
Side-by-side
OpenEvidence is the more established option (raised $735M); pricing is comparable on both sides.
| Metric | OpenEvidence | Periodic Labs |
|---|---|---|
| Taglinei | AI medical assistant for clinicians | Creating AI scientists and autonomous laboratories to accelerate scientific discovery, starting with physical sciences. |
| Foundedi | 2022🏆 | 2025 |
| HQi | San Francisco, US | US |
| Employeesi | 50-200 | 11-50🏆 |
| Neuron scorei | 63 | 64🏆 |
| Total fundingi | $735M🏆 | $300M |
| Latest roundi | Series D · Jan 2026 | Seed · Sep 2025 |
| Valuationi | $12B🏆 | — |
| Cheapest paid plani | — | Pricing not disclosed |
| Free plani | ✗ | ✗ |
| Free triali | ✗ | ✗ |
| Top tier pricei | Enterprise · Contact sales | Pricing not disclosed |
| Pricing summaryi | 1 published plans | Enterprise · Contact sales |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for OpenEvidence and Periodic Labs.
| Capability | OpenEvidence | Periodic Labs |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 2 (TypeScript, Python) | — |
| Free plan | ✗ | ✗ |
| Free trial | ✗ | ✗ |
| Verified | ✓ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of OpenEvidence
- Has raised more capital ($735M vs $300M)
- More mature (2022)
- Verified profile
🔵 Strengths of Periodic Labs
- Higher Neuron score (64 vs 63)
- Newer company (2025)
Which should you choose?
Choose Periodic Labs if price matters most — it starts at Enterprise · Contact sales, 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
OpenEvidence vs Periodic Labs — which is better?
It depends on your priority. OpenEvidence has raised more capital and is the more established option; Periodic Labs has broader feature depth. See the side-by-side table above.
Is OpenEvidence cheaper than Periodic Labs?
No — Periodic Labs's cheapest paid plan is Enterprise · Contact sales, while OpenEvidence's is Freemium.
Do OpenEvidence and Periodic Labs offer free plans?
OpenEvidence: Paid only. Periodic Labs: Paid only.
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