Amazon S3vsCloudflare R2
How 10 AI models weigh Amazon S3 against Cloudflare R2 on the 1 buying question where both came up.
- Amazon S3
- 98%of answers named it
- Cloudflare R2
- 95%of answers named it
- Placed higher
- 38–2times Amazon S3 vs Cloudflare R2, over 40 model rankings that listed either
- Models leaning
- 10–0toward Amazon S3 vs Cloudflare R2
Which models prefer which
Share of each model's answers that named each product, and how often its ranking put one above the other (a product listed beats one left off) · On the 1 shared question, every wording
| Model | Amazon S3 | Cloudflare R2 | Placed higher | Leans |
|---|---|---|---|---|
| Claude Haiku 5.5 | 100% | 100% | 4–0 | Amazon S3 |
| GPT-6 Luna | 100% | 100% | 4–0 | Amazon S3 |
| Gemini 4 Argon | 100% | 100% | 3–1 | Amazon S3 |
| Qwen 3.8 Flash | 100% | 92% | 4–0 | Amazon S3 |
| DeepSeek V4 Pro | 92% | 83% | 4–0 | Amazon S3 |
| GLM-5.3 | 92% | 75% | 4–0 | Amazon S3 |
| Kimi K3 | 100% | 100% | 3–1 | Amazon S3 |
| MiniMax M3 | 100% | 100% | 4–0 | Amazon S3 |
| Mistral Large 4 | 100% | 100% | 4–0 | Amazon S3 |
| Nemotron 3 Ultra | 100% | 100% | 4–0 | Amazon S3 |
What the models say about Amazon S3
One reason per model, from the shared questions
- Claude Haiku 5.5
Industry-standard object storage with mature SDKs, lifecycle rules, and fine-grained access control.
- GPT-6 Luna
Highly scalable, durable object storage with mature SDKs, presigned uploads, and broad ecosystem support.
- Gemini 4 Argon
Industry standard with unmatched reliability, ecosystem integration, and granular security controls.
- Qwen 3.8 Flash
Industry standard for user uploads; presigned URLs, massive scale.
- DeepSeek V4 Pro
Industry gold standard for scalable, durable object storage with vast integrations.
- GLM-5.3
Industry standard: durability, scalability, presigned URLs, huge ecosystem.
- Kimi K3
Industry standard, unmatched durability, ecosystem, and tooling.
- MiniMax M3
Industry standard; unmatched durability, scalability, and ecosystem of integrations.
- Mistral Large 4
Industry standard for scalability, durability, and global reach.
- Nemotron 3 Ultra
Industry standard, infinite scale, massive ecosystem
What the models say about Cloudflare R2
One reason per model, from the shared questions
- Claude Haiku 5.5
S3-compatible storage with zero egress fees, ideal for user-facing downloads.
- GPT-6 Luna
S3-compatible storage with no egress fees, making user-upload delivery cost-predictable.
- Gemini 4 Argon
S3-compatible storage with zero egress fees, saving massive costs on bandwidth-heavy apps.
- Qwen 3.8 Flash
Zero egress fees, S3-compatible, ideal for upload-heavy apps.
- DeepSeek V4 Pro
Zero egress fees make it extremely cost-effective for high-bandwidth uploads/downloads.
- GLM-5.3
Zero egress fees, S3-compatible, fast global edge delivery.
- Kimi K3
Zero egress fees, S3-compatible API, great performance at edge.
- MiniMax M3
Zero egress fees makes it ideal for user-generated content at scale.
- Mistral Large 4
Zero egress fees make it unbeatable for high-traffic uploads.
- Nemotron 3 Ultra
Zero egress fees, S3-compatible, global network
Tracked since October 25, 2026. Each time the panel answers these questions again, both shares are added here.
Question by question
Share of all answers that named each, every wording pooled, with its place among every product named · Both-named questions first
| Question | Amazon S3 | Cloudflare R2 |
|---|---|---|
| Best file storage for app uploads | 98% #1 | 95% #5 |
| Best cloud storage for businesses | 16% #15 | · |