Alternatives to Vellum
Other LLM tooling and evaluation vendors we measure, sorted by how much they publish that Vellum does not. This is a comparison of disclosure, not of features or fitness.
12 shown of 32 that differ from Vellum on at least one criterion we measured for both. Public transparency score, not a product or security rating.
Vellum has 10 gaps in what we could measure: Data processing agreement, Subprocessor list, Data location stated, Certifications named, Uptime SLA with a figure, HTTPS enforced with HSTS, No third-party tracking before consent, security.txt (RFC 9116), Notice before subprocessors change, Named privacy contact. The column “publishes and Vellum does not” is the one that closes them.
| Vendor | Score | Publishes, and Vellum does not | Vellum publishes, and they do not | |
|---|---|---|---|---|
| Langfuselangfuse.com | 74/100 | 7 Data processing agreement, Subprocessor list, Data location stated, +4 | 1 Status page with history | Compare |
| Openlayeropenlayer.com | 48/100 | 5 Data processing agreement, Data location stated, Certifications named, +2 | 2 Status page with history, Public pricing | Compare |
| HiddenLayerhiddenlayer.com | 39/100 | 5 Data location stated, Certifications named, HTTPS enforced with HSTS, +2 | 2 Status page with history, Public pricing | Compare |
| Confident AIconfident-ai.com | 48/100 | 4 Data processing agreement, Data location stated, HTTPS enforced with HSTS, +1 | 1 Status page with history | Compare |
| Fiddlerfiddler.ai | 43/100 | 4 Data processing agreement, Certifications named, HTTPS enforced with HSTS, +1 | 1 Status page with history | Compare |
| Arizearize.com | 39/100 | 4 Data location stated, Certifications named, HTTPS enforced with HSTS, +1 | 1 Status page with history | Compare |
| Braintrustbraintrust.dev | 39/100 | 3 Data processing agreement, HTTPS enforced with HSTS, Notice before subprocessors change | 1 Status page with history | Compare |
| Lunarylunary.ai | 39/100 | 3 Data processing agreement, HTTPS enforced with HSTS, Notice before subprocessors change | 1 Status page with history | Compare |
| Lakeralakera.ai | 35/100 | 3 Certifications named, HTTPS enforced with HSTS, Named privacy contact | nothing | Compare |
| Patronus AIpatronus.ai | 35/100 | 3 Data location stated, HTTPS enforced with HSTS, Named privacy contact | 1 Status page with history | Compare |
| Humanloophumanloop.com | 26/100 | 3 Data location stated, HTTPS enforced with HSTS, Named privacy contact | 2 Status page with history, Public pricing | Compare |
| Galileogalileo.ai | 30/100 | 2 Data location stated, HTTPS enforced with HSTS | 1 Status page with history | Compare |
Only criteria we could measure for both are counted. Where we could measure one and not the other, the row is silent: that would be a statement about our measurement, not about either vendor. Every single result with its source is on the two profiles.