Harvey vs Weaviate
Which Developer Tools AI tool is better in 2026?
Harvey
The AI platform for elite law firms.
Weaviate
Open-source AI-native vector database
Side-by-side
Harvey is the more established option (raised $2.3B); pricing is comparable on both sides.
| Metric | Harvey | Weaviate |
|---|---|---|
| Taglinei | The AI platform for elite law firms. | Open-source AI-native vector database |
| Foundedi | 2022 | 2019🏆 |
| HQi | San Francisco, US | Amsterdam, NL |
| Employeesi | 201-500 | 200-500🏆 |
| Neuron scorei | 78🏆 | 51 |
| Total fundingi | $2.3B🏆 | $50M |
| Latest roundi | series-h · Sep 2026 | Series C · Oct 2025 |
| Valuationi | $11B🏆 | $200M |
| Cheapest paid plani | — | — |
| Free plani | ✗ | ✓ Open Source |
| Free triali | ✗ | ✓ |
| Top tier pricei | Enterprise · Contact sales | Weaviate Cloud · Contact sales |
| Pricing summaryi | 1 published plans | 2 published plans |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Harvey and Weaviate.
| Capability | Harvey | Weaviate |
|---|---|---|
| MCP support | ✓ | ✓ |
| Public API | ✓ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | 2 (python, typescript) |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✗ | ✓ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Harvey
- Has raised more capital ($2.3B vs $50M)
- Higher Neuron score (78 vs 51)
- Newer company (2022)
🔵 Strengths of Weaviate
- Offers a free plan
- Offers a free trial
- More mature (2019)
- Verified profile
Which should you choose?
Choose Weaviate if price matters most — it starts at Open source, which is friendlier for teams watching burn. Both AI Developer Tools tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Harvey if you want the most established option — it has raised $2.3B, 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
Harvey vs Weaviate — which is better?
It depends on your priority. Harvey has raised more capital and is the more established option; Weaviate has broader feature depth. See the side-by-side table above.
Is Harvey cheaper than Weaviate?
No — Weaviate's cheapest paid plan is Free, while Harvey's is Paid.
Do Harvey and Weaviate offer free plans?
Harvey: Paid only. Weaviate: Yes, has a free plan.
Explore more AI Developer Tools tools
Contextual paths to related AI startups, deals and rankings.