Fly.io Firecracker MicroVMs vs. Cloudflare R2 Object Storage — Interactive Cost & Performance Calculator
Compare Fly.io Firecracker MicroVMs vs Cloudflare R2 Object Storage side-by-side. Use our interactive calculator to estimate exact monthly costs, savings, and performance trade-offs at your scale.
Fly.io Firecracker MicroVMs
Best for: Multi-region stateful Elixir, Go & Rust servers
Cloudflare R2 Object Storage
Best for: Eliminating AWS S3 egress bills for media, AI weights & backups
Side-by-Side Technical & Commercial Breakdown: Fly.io Firecracker MicroVMs vs. Cloudflare R2 Object Storage
| Dimension | Fly.io Firecracker MicroVMs | Cloudflare R2 Object Storage |
|---|---|---|
| Platform Provider | Fly.io | Cloudflare |
| Base Monthly Plan | $10/mo | $0/mo |
| Compute Rate (per 1M reqs) | $0.14 | $0.36 |
| Storage / Bandwidth (per GB) | $0.150/GB | $0.015/GB |
| Typical Cold Start | 250 ms machine wake | < 5 ms Global Edge Read |
| Included Free Tier | Pay-as-you-go resource consumption | 10 GB/mo free storage + $0.00 Egress Bandwidth Fees |
| Best Use Case | Multi-region stateful Elixir, Go & Rust servers | Eliminating AWS S3 egress bills for media, AI weights & backups |
Frequently Asked Questions
Which is more cost-effective in 2026: Fly.io Firecracker MicroVMs or Cloudflare R2 Object Storage?
It depends on your workload volume. Use the interactive sliders above to model your exact monthly scale. Fly.io Firecracker MicroVMs (Multi-region stateful Elixir, Go & Rust servers) and Cloudflare R2 Object Storage (Eliminating AWS S3 egress bills for media, AI weights & backups) have different unit economics that cross over as volume scales.
When should an engineering team choose Fly.io Firecracker MicroVMs over Cloudflare R2 Object Storage?
Choose Fly.io Firecracker MicroVMs when your primary priority is: Multi-region stateful Elixir, Go & Rust servers. Choose Cloudflare R2 Object Storage when you prioritize: Eliminating AWS S3 egress bills for media, AI weights & backups.