Vercel Functions vs Fly.io
Compare Service Types, Runtimes, Execution Limits, Compliance, Regions and Alternatives
Features
Vercel Functions
Service Types
Functions
Containers
Database
PaaS
N/A
Edge Compute
API as a Service
N/A
Fly.io
Service Types
Functions
Containers
Database
PaaS
Edge Compute
API as a Service
Vercel Functions
Supported Containers
Docker
Docker Private Registry
Kubernetes
Managed Kubernetes
Fly.io
Supported Containers
Docker
Docker Private Registry
Kubernetes
Managed Kubernetes
Vercel Functions
Supported Runtimes
.NET
Crystal
Deno
Elixir
Go
Java
JavaScript
Node.js
PHP
Python
Ruby
Rust
Fly.io
Supported Runtimes
.NET
Crystal
Deno
Elixir
Go
Java
JavaScript
Node.js
PHP
Python
Ruby
Rust
Vercel Functions
Execution Limits and Resource Quotas
Min. Memory
1024 MB
Max. Memory
3008 MB
Default Timeout
10,000 ms
Max. Timeout
900,000 ms
Request Payload
5 MB
Response Payload
5 MB
Fly.io
Execution Limits and Resource Quotas
Min. Memory
256 MB
Max. Memory
32 GB
Default Timeout
60 s
Max. Timeout
5 min
Request Payload
200 KB
Response Payload
∞
Vercel Functions
Compliance
BAA
DPA
GDPR
HIPAA
PHIPA
SOC2
Fly.io
Compliance
BAA
DPA
GDPR
HIPAA
PHIPA
SOC2
Vercel Functions
Regional Availability
Deployment Scope
N/A
Regions
N/A
Points of Presence
23
Fly.io
Regional Availability
Deployment Scope
Regional + Global
Regions
NA, LATAM, EU, MEA, APAC
Points of Presence
16, 5, 8, 1, 5
Alternatives are matched on service types, programming languages and container support
