Comet ML
comet.com · Storage · 1 record · JSON
Comet ML (Comet / Opik) — artifact + dataset management Storage
fails: quotaemailno cardRretention-clamped
| Free tier | No storage allowance at all on the free tier. The free cloud plan is metered in spans, not bytes: 'Up to 10 team members · 25k spans per month · 60-day data retention'. Artifact/dataset management is a paid-MLOps feature; the free plan is the Opik observability product with a 60-day retention clamp. unit mixed; metered on stored-bytes |
|---|---|
| Price | none stated |
| Per-object cap | not stated |
| Retention | The free cloud plan is metered in spans, not bytes: 'Up to 10 team members · 25k spans per month · 60-day data retention' (60 days) |
| Egress | Not applicable — there is no free storage pool to egress from. |
| Identity | email email; academic Pro requires institutional verification. |
| Limits |
25k spans/month, 10 team members, 60-day data retention on Free. Retention is the killer: 60 days is a hard clamp, so this cannot hold an archive even if bytes were free. |
| Binding | retention-clamped a clock, not a quota: bytes leave whether or not the client is finished with them |
| Interface | rest rest |
| Tooling | comet_ml Python SDK (log_artifact, log_dataset), plus Opik's own SDK. Self-hostable: github.com/comet-ml/opik is open source, which is the only unlimited path — on your own disks. |
| Composes with | None. With no free byte allowance, multiplying accounts multiplies zero. |
| Reliability | Stable vendor. The 60-day retention clamp on the free tier is a 'retention-clamped' case in the brief's vocabulary — client-side settings cannot override it. |
| Notes | No storage allowance at all on the free tier. The free cloud plan is metered in spans, not bytes: 'Up to 10 team members · 25k spans per month · 60-day data retention'. Artifact/dataset management is a paid-MLOps feature; the free plan is the Opik observability product with a 60-day retention clamp. |
| Evidence rung | reported One page read moves it to documented. |
| Checked | 2026-10-21 (inherited); stale on 2026-11-04 |
Evidence (2)
| date | source | what it proved |
|---|---|---|
| 2026-10-21 | www.comet.com/site/pricing/ | read live: Free Cloud '$0 ... Up to 10 team members · 25k spans per month · 60-day data retention'; Pro Cloud '$19 ... 100k spans per month · 60-day data retention' |
| 2026-10-21 | www.comet.com/site/pricing/ | read live: 'Our MLOps platform is designed for teams building and training machine learning models, with tools for experiment tracking, dataset management, model versioning' — i.e. dataset management is the MLOps product, not the free Opik one |
More fields (1)
{
"dead_end": {
"failure_class": "retention",
"why": "No storage allowance at all on the free tier. The free cloud plan is metered in spans, not bytes: 'Up to 10 team members · 25k spans per month · 60-day data retention'. Artifact/dataset management is a paid-MLOps feature; the free plan is the Opik observability product with a 60-day retention clamp.",
"retry_when": null,
"first_recorded": "2026-10-21"
}
}Unknown or withheld values (5)
$.extras.dead_end.retry_whenprocess$.free_tier.notesprocess$.per_object_cap.notesnot-extracted$.per_object_cap.statednot-extracted$.retention.notesnot-extracted