{"slug":"rook-ceph-rgw","name":"Rook-Ceph RGW","domain":null,"verdict":"As of 2026-09-09, Claude, Gemini, Grok collectively rank Rook-Ceph RGW #6 of 9 for s3-compatible object storage for on-premises kubernetes. Source: https://modelsagree.com/product/rook-ceph-rgw (modelsagree.com, CC BY 4.0).","best_rank":6,"categories":1,"entries":[{"slug":"best-s3-compatible-object-storage-for-on-premises-kubernetes","title":"Best S3-compatible object storage for on-premises Kubernetes","rank":6,"of":9,"score":5,"appearances":1,"modelRanks":{"Grok":1},"reason":"Strongest on-prem K8s object platform in 2026: CNCF-graduated Rook operator, CephObjectStore/OBC plus COSI, highest real S3-test coverage, erasure coding and multi-site RGW, and one cluster can also serve RBD/CephFS if you need it. Rank assumes a platform team that will own Ceph day-2 rather than treat storage as a sidecar binary.","reasons":[{"model":"Grok","reason":"Strongest on-prem K8s object platform in 2026: CNCF-graduated Rook operator, CephObjectStore/OBC plus COSI, highest real S3-test coverage, erasure coding and multi-site RGW, and one cluster can also serve RBD/CephFS if you need it. Rank assumes a platform team that will own Ceph day-2 rather than treat storage as a sidecar binary."}],"fixes":[{"model":"Grok","fix":"Not for small clusters or teams without Ceph skill — 8GB+ RAM floor, deep failure modes, and ops cost dominate the bill."}],"updated":"2026-09-09","rank_history":{"days":["2026-09-07","2026-09-09"],"ranks":[null,1]},"api":"https://modelsagree.com/api/v1/best/best-s3-compatible-object-storage-for-on-premises-kubernetes.json"}],"page":"https://modelsagree.com/product/rook-ceph-rgw","check":"https://modelsagree.com/check?q=Rook-Ceph%20RGW","updated":"2026-09-09T13:07:58.066Z","attribution":"modelsagree.com, CC BY 4.0"}