Transparency alternatives to Letta
Other LLM tooling and evaluation vendors we measure, sorted by how much they publish that Letta does not. This is a comparison of disclosure, not of features or fitness.
12 shown of 47 that differ from Letta on at least one criterion we measured for both. Public transparency score, not a product or security rating.
Letta has 11 gaps in what we could measure: Data processing agreement, Subprocessor list, Data location stated, Status page with history, 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 Letta does not” is the one that closes them.
| Vendor | Score | Publishes, and Letta does not | Letta publishes, and they do not | |
|---|---|---|---|---|
| Langfuselangfuse.com | 74/100 | 7 Data processing agreement, Subprocessor list, Data location stated, +4 | nothing | Compare |
| Openlayeropenlayer.com | 48/100 | 5 Data processing agreement, Data location stated, Certifications named, +2 | 1 Public pricing | Compare |
| Orqorq.ai | 43/100 | 5 Data location stated, Certifications named, HTTPS enforced with HSTS, +2 | nothing | Compare |
| Lunarylunary.ai | 52/100 | 4 Data processing agreement, Data location stated, HTTPS enforced with HSTS, +1 | nothing | Compare |
| Confident AIconfident-ai.com | 48/100 | 4 Data processing agreement, Data location stated, HTTPS enforced with HSTS, +1 | nothing | Compare |
| Fiddlerfiddler.ai | 43/100 | 4 Data processing agreement, Certifications named, HTTPS enforced with HSTS, +1 | nothing | Compare |
| Zepgetzep.com | 43/100 | 4 Subprocessor list, Status page with history, Certifications named, +1 | nothing | Compare |
| Lakeralakera.ai | 35/100 | 4 Status page with history, Certifications named, HTTPS enforced with HSTS, +1 | nothing | Compare |
| HiddenLayerhiddenlayer.com | 26/100 | 4 Certifications named, HTTPS enforced with HSTS, Notice before subprocessors change, +1 | 1 Public pricing | Compare |
| Braintrustbraintrust.dev | 39/100 | 3 Data processing agreement, HTTPS enforced with HSTS, Notice before subprocessors change | nothing | Compare |
| Mastramastra.ai | 39/100 | 3 Data processing agreement, HTTPS enforced with HSTS, Notice before subprocessors change | nothing | Compare |
| Vectorizevectorize.io | 39/100 | 3 Subprocessor list, Status page with history, HTTPS enforced with HSTS | nothing | 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.