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Vercel Functions vs Fly.io
Compare Categories, Runtimes, Pricing, Regions and Alternatives

Features

Vercel Functions 
Category

FaaS
Compute
N/A
CaaS
DBaaS
PaaS
N/A
Edge
API Gateway
N/A

Fly.io 
Category

FaaS
N/A
Compute
CaaS
DBaaS
PaaS
Edge
N/A
API Gateway

Vercel Functions 
Container Deployment

Docker
Docker Private Registry
Kubernetes
Managed Kubernetes

Fly.io 
Container Deployment

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 by category, runtimes, and hosting.

Compare Features, Languages, Execution Limits and Alternatives

Category
Decentralized
Hosted
Self Hosted
BaaS
FaaS
Compute
CaaS
Docker
Managed K8s
DBaaS
KV Store
PaaS
IaC
Edge
Emulator
API Gateway
Container Deployment
Docker
Docker Private Registry
Docker Swarm
Kubernetes
Managed Kubernetes
WebAssembly
Supported Runtimes
.NET
Crystal
Deno
Elixir
Go
Java
JavaScript
Node.js
PHP
Python
Ruby
Rust
Supported Frameworks
Supported Frameworks
Execution Limits and Resource Quotas
1024 MB
Min. Memory
256 MB
3008 MB
Max. Memory
32 GB
10,000 ms
Default Timeout
60 s
900,000 ms
Max. Timeout
5 min
5 MB
Request Payload
200 KB
5 MB
Response Payload
Compliance
Certificates
Regional Availability
Deployment Scope
Regional + Global
Regions
NA, LATAM, EU, MEA, APAC
23
Points of Presence
16, 5, 8, 1, 5
Sustainabilty
Green Energy

Alternatives are matched by category, runtimes, and hosting.

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