Comet ML
Comet · Data analysis · US · www.comet.com
Last verified 2026-09-16
Entry
services/comet-ml.yamlTraining on your data (default tier)
Prompt and response logs not used to train third-party models; OpenAI processes assistant queries without retention or training
Retention
Prompt and response log kept for internal quality assurance and debugging; no period stated
Data residency
Not stated; staff and contractors may be outside the user's country
Vendor data-handling terms
Training on your data (default tier)
Prompt and response logs not used to train third-party models; OpenAI processes assistant queries without retention or training
“These logs are not used for training third-party models. / OpenAI processes the submitted data only to provide the service and does not retain or use it for model training, in accordance with its API data usage policy.”
Retention
Prompt and response log kept for internal quality assurance and debugging; no period stated
“Comet retains a log of prompts and responses solely for internal quality assurance and debugging.”
Data residency
Not stated; staff and contractors may be outside the user's country
“Note; Some of those employees, contractors and affiliated organizations may be located outside of your home country; by using the Services you consent to the transfer of such information to them.”
Domains and endpoints
observed means seen in Unseen deployments; vendor-documented means listed by the vendor. Vendors do not publish complete lists.
| Host | Role | Source |
|---|---|---|
| api.comet.ml | api | observed |
| comet.ml | app | observed |
Assessment
Cloud platform: medium
Reasoning: An ML experiment-tracking and LLM-evaluation platform: what it holds is training runs, prompts, and evaluation data from an organisation's own AI work. The no-training terms toward OpenAI are clear; Comet's own log of prompts has no stated retention period and no storage location is named.
Flags: Storage location not stated · Prompt logs retained for an unspecified period · Assessed 2026-09-16. The assessment is Unseen's; the terms above are the vendor's.
Changelog
- 2026-09-16Documented. Training and logging terms verified against the Comet privacy policy; storage location not stated.
- 2026-09-15Listed from the Unseen catalogue with observed domains.
Corrections
Pull request on GitHub, or the form below. Changes are reviewed and recorded in the changelog.