OpenEvidence vs Valar Labs
Which Medical AI tool is better in 2026?
OpenEvidence
AI medical assistant for clinicians
Valar Labs
AI-powered precision oncology tests that predict how individual cancer patients will respond
Side-by-side
OpenEvidence is the more established option (raised $735M); pricing is comparable on both sides.
| Metric | OpenEvidence | Valar Labs |
|---|---|---|
| Taglinei | AI medical assistant for clinicians | AI-powered precision oncology tests that predict how individual cancer patients will respond |
| Foundedi | 2022 | 2021🏆 |
| HQi | San Francisco, US | — |
| Employeesi | 50-200🏆 | 11-50 |
| Neuron scorei | 64🏆 | 50 |
| Total fundingi | $735M🏆 | $26M |
| Latest roundi | Series D · Jan 2026 | Series A |
| Valuationi | $12B🏆 | — |
| Cheapest paid plani | — | Pricing not disclosed |
| Free plani | ✓ Free for Verified US Physicians | ✓ |
| Free triali | ✗ | ✓ |
| Top tier pricei | — | Pricing not disclosed |
| Pricing summaryi | 1 published plans | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for OpenEvidence and Valar Labs.
| Capability | OpenEvidence | Valar 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 $26M)
- Higher Neuron score (64 vs 50)
- Newer company (2022)
- Verified profile
🔵 Strengths of Valar Labs
- Offers a free trial
- More mature (2021)
Which should you choose?
Choose Valar Labs if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Medical 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 Valar Labs — which is better?
It depends on your priority. OpenEvidence has raised more capital and is the more established option; Valar Labs has broader feature depth. See the side-by-side table above.
Is OpenEvidence cheaper than Valar Labs?
No — Valar Labs's cheapest paid plan is Free, while OpenEvidence's is Free.
Do OpenEvidence and Valar Labs offer free plans?
OpenEvidence: Yes, has a free plan. Valar Labs: Yes, has a free plan.
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