Head-to-head
Amazon S3 vs Cloudflare R2
Dead heat: Amazon S3 and Cloudflare R2 split 2 shared leaderboards. Based on how ChatGPT, Claude, Gemini & Grok rank both across 2 shared leaderboards — re-polled on demand, reasoning shown verbatim.
Amazon S31 win| Leaderboard | Amazon S3 | Cloudflare R2 |
|---|---|---|
| Best object storage for the cloud | #1 / 7 | #2 / 7 |
| Best S3-compatible object storage for AI workloads | #3 / 10 | #2 / 10 |
Why the models rank Amazon S3 — on best object storage for the cloud
“Best overall and a near-tie with R2: unmatched API/tool compatibility, storage classes, lifecycle and replication controls, security, durability track record, regional coverage, and integration with cloud data services; ranked first assuming broad production needs outweigh lowest cost”
Why the models rank Cloudflare R2 — on best object storage for the cloud
“Zero egress fees combined with native integration into Cloudflare's serverless edge runtime (Workers) provides unparalleled value and performance for modern web applications.”
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Ranks from the merged 4-model leaderboards · re-polled on demand · methodology