Fly.io Machines

Functions 4.6/10

Per-second billing for VM presets: shared-cpu-1x/256MB ~$0.0000008/s (~$1.94/mo always-on); performance-1x/2GB ~$32/mo. Stopped Machines billed only for storage; no plan fee.

Fly.io Machines scores 4.6/10 for free value in Functions. The main constraint: Paid — From ~$1.94/month (shared-cpu-1x 256MB) + ~$5/GB extra RAM. Per-second billing for VM presets: shared-cpu-1x/256MB ~$0.0000008/s (~$1.94/mo always-on); performance-1x/2GB ~$32/mo. Stopped Machines billed only for storage; no plan fee.

Category Functions Kind Paid plan

Free value score

4.6 / 10

Show the math

Overall 4.6/10

value = 4.6/100

weighted_components_v1

Invocation value 1/10

value = 0.01 ×

fixed_log_v1

Runtime fit 8.2/10

value = 8.2/100

policy_score_v1

Deploy friction 8/10

value = 8/100

policy_score_v1

Key metrics

~$1.94/mo

+$5/GB RAM

per-sec

What you get

Paid — From ~$1.94/month (shared-cpu-1x 256MB) + ~$5/GB extra RAM. Per-second billing for VM presets: shared-cpu-1x/256MB ~$0.0000008/s (~$1.94/mo always-on); performance-1x/2GB ~$32/mo. Stopped Machines billed only for storage; no plan fee.

An always-on micro-VM for under $2/month; per-second billing means scale-to-zero workloads pay near-nothing. Excellent value for small persistent agen

Sources

"shared-cpu-1x | 1 shared | 256MB | $0.00000078 | $0.0028 | $2.02"
https://fly.io/docs/about/pricing/
"Fly Machines are billed per second while started, based on a CPU/RAM preset. Stopped Machines are billed only for root..."
https://northflank.com/blog/railway-vs-flyio

paid value serverless-functions

Open service ← All Functions