Head-to-head
Amazon S3 vs Cloudflare R2
Amazon S3 leads: the AI models rank it above its rival on 1 of the 1 leaderboard they share. Based on how ChatGPT, Claude, Gemini & Grok rank both across the leaderboard they share — re-polled weekly, reasoning shown verbatim.
Amazon S31 win| Leaderboard | Amazon S3 | Cloudflare R2 |
|---|---|---|
| Best object storage for the cloud | #1 / 7 | #2 / 7 |
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 weekly · methodology