Comparison

Backblaze B2 Cloud Storage vs Cloudflare: Build for the agent era

Backblaze B2 Cloud Storage and Cloudflare: Build for the agent era both land on Depends.

Backblaze B2 Cloud Storage

Depends

Confidence: Medium

Buy it if you're a developer or AI team moving terabytes and want S3 compatibility at a fraction of AWS prices.

Depends

Confidence: Low

Developer teams wanting compute, AI agents, and security on one global network should start with the free tier.

Backblaze B2 Cloud Storage versus Cloudflare: Build for the agent era
Compare	Backblaze B2 Cloud Storage	Cloudflare: Build for the agent era
Verdict	Depends	Depends
Best for	AI/ML teams training on large datasets	Developer teams shipping global apps
Who it's not for	Non-technical users wanting simple file sync or sharing	Non-technical founders who can't write code
Privacy	No known public vulnerabilities found in the sources reviewed; UpGuard shows hardened TLS with no FREAK exposure.^⁹	No known public vulnerabilities found in the sources reviewed.¹¹
Support quality	No evidence in sources	No support evidence in sources
Public sentiment	Users consistently praise B2's price, simplicity, and reliability, especially as a backup target.^²	No independent user reviews were found; the only customer voice is a vendor-published testimonial.¹²
Biggest gotcha	'Fifth of S3 cost' and 'free egress' are vendor claims . validate against your own workload^⁵	Proprietary runtimes (Workers, Durable Objects) create real lock-in; plan an exit path¹²