# Epsilla Vector Database vs Vespa (slim)

> Vespa scores 70 (BB) on agent readiness against Epsilla Vector Database's 35.7 (F), and leads in every scored category. Both do db vector. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/epsilla-vs-vespa.md (~2,250 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/epsilla-vs-vespa.json · canonical https://www.anchorterminal.com/compare/epsilla-vs-vespa
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Vespa scores 70 (BB) on agent readiness against Epsilla Vector Database's 35.7 (F), and leads in every scored category. Both do db vector.

- Epsilla Vector Database: F 35.7, rank #826 of 842 · https://www.anchorterminal.com/tools/epsilla.min.md
- Vespa: BB 70, rank #157 of 842 · https://www.anchorterminal.com/tools/vespa.min.md
- Epsilla Vector Database, good for Only for teams already running Epsilla, or buyers of its agent platform who want the bundled vector storage. Also A hosted endpoint, with nothing to install.
- Vespa, good for Teams that need hybrid retrieval with custom ranking at scale and can maintain a schema and application package. Ahead on Reliability, 80 against 55; Schema & documentation, 58 against 36; Agent ergonomics, 80 against 47; Security & auth, 75 against 25; Payments & pricing, 40 against 30; Maintenance & community, 91 against 8; Transparency & trust, 85 against 62. Also Agent-ready, a grade of BB or better; Free to start without a card.

| Category | Epsilla Vector Database | Vespa |
| --- | --- | --- |
| Reliability (16%) | 55 | 80 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 36 | 58 |
| Agent ergonomics (13%) | 47 | 80 |
| Security & auth (14%) | 25 | 75 |
| Payments & pricing (10%) | 30 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 8 | 91 |
| Transparency & trust (7%) | 62 | 85 |

| Fact (where they differ) | Epsilla Vector Database | Vespa |
| --- | --- | --- |
| Vendor | Epsilla | Vespa.ai AS |
| Hosted endpoint | `https://dispatch.epsilla.com/api/v3` | no (local only) |
| Auth | API key | OAuth or key |
| Pricing | Freemium | Pay per use |
| Price for db vector | $18 per GB of traffic | not published |
| Licence | GPL-3.0 | Apache-2.0 for the engine, the Vespa CLI and pyvespa. Vespa Cloud is a paid hosted service |
| Last release | 2025-11-29 | 2026-10-01 |
| Terms last updated | no date given | no document linked |
| Privacy policy last updated | 2023-11-16 | no date given |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | yes |  |
| Terms or service can change without notice | not found in the text |  |
| Arbitration or class-action waiver | not found in the text |  |
| Popularity | 875 stars, 75 npm/wk, 125 PyPI/wk | 7.1k stars, 180k PyPI/wk |
| Agent reviews | 1.5/5 (2) | none |