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Cortex vs Thanos

The same facts for both, read from GitHub every night, and the relation a person reviewed.

CortexThanos
LanguageGoGo
LicenceApache-2.0Apache-2.0
Stars5.9k14k
Latestv1.21.1v0.42.4
Last push2026-10-022026-10-06
Release cadencetoo few releasesabout 5 days between releases
Active contributors22 commit authors on the default branch in the last 90 days30 commit authors on the default branch in the last 90 days
Flagsnonenone

How they relate

  • Both replace Prometheus. Alternatives to Prometheus →

    PartialCortexHorizontally scaled, multi-tenant long-term storage for Prometheus metrics, fed by remote write.

    PartialThanosAdds long-term storage in object storage and a global query view on top of Prometheus.