Comparison

AWS Lambda vs OpenFaaS

On the evidence we track, AWS Lambda leads this comparison with a composite score of 67/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

AWS Lambda full profile →OpenFaaS full profile →

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★AWS Lambda67

OpenFaaS41

Attribute comparison across 2 tools
Attribute	AWS LambdaLeader	OpenFaaS
Vioscale score	67 / 100medium · 73%	41 / 100low · 42%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	freemium	commercial
Price levelpricing.price_level	low	low
Transparentpricing.transparent	✗	✓
Integrations
Countintegrations.count	220	20
Security
Disclosure policysecurity.disclosure_policy	✓	-
Fedrampsecurity.fedramp	✓	-
Gdprsecurity.gdpr	✓	-
Hipaasecurity.hipaa	✓	-
Iso27001security.iso27001	✓	-
Pcisecurity.pci	✓	-
Scorecardsecurity.scorecard	-	4.3
Soc2security.soc2	✓	-
Vulnerabilitiessecurity.vulnerabilities	-	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fopenfaas%2Ffaas&per_page=100 · Last 12m: 0
Reliability
Status pagereliability.status_page	✓	-
Adoption
Dependent reposadoption.dependent_repos	-	55
Github starsadoption.github_stars	-	26,231
Activity
Commits last 30dactivity.commits_last_30d	-	0
Release
Cadence daysrelease.cadence_days	-	136
Historyrelease.history	-	5 items
Language
Primarylanguage.primary	-	Go
Market
Availabilitymarket.availability	Available worldwide · HQ US	Available worldwide · HQ GB

Score

Vioscale score

AWS Lambda67 / 100medium · 73%

OpenFaaS41 / 100low · 42%

Pricing

Free tier

AWS Lambda✓

OpenFaaS✓

Model

AWS Lambdafreemium

OpenFaaScommercial

Price level

AWS Lambdalow

OpenFaaSlow

Transparent

AWS Lambda✗

OpenFaaS✓

Integrations

Count

AWS Lambda220

OpenFaaS20

Security

Disclosure policy

AWS Lambda✓

OpenFaaS–

Fedramp

AWS Lambda✓

OpenFaaS–

Gdpr

AWS Lambda✓

OpenFaaS–

Hipaa

AWS Lambda✓

OpenFaaS–

Iso27001

AWS Lambda✓

OpenFaaS–

Pci

AWS Lambda✓

OpenFaaS–

Scorecard

AWS Lambda–

OpenFaaS4.3

Soc2

AWS Lambda✓

OpenFaaS–

Vulnerabilities

AWS Lambda–

OpenFaaSCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fopenfaas%2Ffaas&per_page=100 · Last 12m: 0

Reliability

Status page

AWS Lambda✓

OpenFaaS–

Adoption

Dependent repos

AWS Lambda–

OpenFaaS55

Github stars

AWS Lambda–

OpenFaaS26,231

Activity

Commits last 30d

AWS Lambda–

OpenFaaS0

Release

Cadence days

AWS Lambda–

OpenFaaS136

History

AWS Lambda–

OpenFaaS5 items

Language

Primary

AWS Lambda–

OpenFaaSGo

Market

Availability

AWS LambdaAvailable worldwide · HQ US

OpenFaaSAvailable worldwide · HQ GB

Capabilities

Feature-by-feature on the axes that matter for serverless & edge platforms. “-” means undocumented, not absent.

Capability comparison for Serverless & Edge Platforms
Capability	AWS Lambda	OpenFaaS
Core
Execution substrate	-	-
Language / runtime breadth	Python, Node.js, Java, C#, Go, Ruby, custom runtimes	extensive language support
Reach
Runs at global edge PoPs	-	-
Scale
Scale to zero	✓	-
Performance
Cold-start profile	Provisioned concurrency	-
Limits
Max execution duration	-	extended execution timeouts
Integration
Event source breadth	220+ AWS services including S3, DynamoDB, Kinesis, SQS, API calls, event streams	-
HTTP endpoint trigger	✓	-
Cron / scheduled invocations	-	-
State
Durable state / workflow primitive	✓	-
Flexibility
Bring-your-own runtime / container	✓	✓
Deployment
Hosting	Cloud only	Cloud + self-hosted
Ops
Built-in logs / metrics / tracing	✓	-
Extensibility
CLI + IaC / framework support	✓	-

Core

Execution substrate

AWS Lambda-

OpenFaaS-

Language / runtime breadth

AWS LambdaPython, Node.js, Java, C#, Go, Ruby, custom runtimes

OpenFaaSextensive language support

Reach

Runs at global edge PoPs

AWS Lambda-

OpenFaaS-

Scale

Scale to zero

AWS Lambda✓

OpenFaaS-

Performance

Cold-start profile

AWS LambdaProvisioned concurrency

OpenFaaS-

Limits

Max execution duration

AWS Lambda-

OpenFaaSextended execution timeouts

Integration

Event source breadth

AWS Lambda220+ AWS services including S3, DynamoDB, Kinesis, SQS, API calls, event streams

OpenFaaS-

HTTP endpoint trigger

AWS Lambda✓

OpenFaaS-

Cron / scheduled invocations

AWS Lambda-

OpenFaaS-

State

Durable state / workflow primitive

AWS Lambda✓

OpenFaaS-

Flexibility

Bring-your-own runtime / container

AWS Lambda✓

OpenFaaS✓

Deployment

Hosting

AWS LambdaCloud only

OpenFaaSCloud + self-hosted

Ops

Built-in logs / metrics / tracing

AWS Lambda✓

OpenFaaS-

Extensibility

CLI + IaC / framework support

AWS Lambda✓

OpenFaaS-

What each one is

The product in its own terms, so the numbers below have context.

AWS Lambda

Leader

A serverless compute service that automatically scales in response to demand and reduces to zero during idle periods. Execute code triggered by events from AWS services and external applications with built-in security, monitoring, and support for multiple programming languages.

Independently observed

OpenFaaS

Open-source serverless framework that abstracts cloud provider differences, allowing you to deploy and run functions across multiple clouds, on-premises, and Kubernetes with extended execution timeouts and support for many programming languages.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

AWS Lambda

Leader

Usage-basedFree tier

Pay-per-use billing with free tier included.

as of 2026-08-14verify ↗

OpenFaaS

from $1250/moHybridFree tier14-day trial

Community Edition free; Standard from $1,250/month with 14-day trial; Enterprise custom pricing

Community EditionFree
- 15 functions
- 1 namespace
- Public repositories only
- Basic autoscaling up to 5/5 replicas
- Basic metrics & observability
- +3 more
OpenFaaS Standard$1,250/month
- 500 functions
- 1 namespace
- Private registries for functions
- Fine-tuned autoscaling for RPS, Capacity & CPU
- Scale to Zero
- +9 more
OpenFaaS for EnterprisesContact sales
- 5000 functions per namespace
- Unlimited namespaces
- Multi-tenancy with secure isolation (gVisor)
- Function Builder API (REST)
- Dedicated async queues (JetStream)
- +9 more

as of 2026-08-13verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	AWS Lambda	OpenFaaS
WebPlatforms	✓	✗
LinuxPlatforms	✗	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✗	✓
On-premiseDeployment	✗	✓

Platforms

Web

AWS Lambda✓

OpenFaaS✗

Linux

AWS Lambda✗

OpenFaaS✓

CLI

AWS Lambda✓

OpenFaaS✓

Deployment

Cloud / SaaS

AWS Lambda✓

OpenFaaS✓

Self-hosted

AWS Lambda✗

OpenFaaS✓

On-premise

AWS Lambda✗

OpenFaaS✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)

AWS SQS

AWS Lambda

Leader

8 total - 7 not shared

AWS S3
AWS DynamoDB
AWS Kinesis
AWS EventBridge
Amazon MSK
AWS CloudWatch
AWS X-Ray

Independently observed

OpenFaaS

20 total - 19 not shared

Apache Kafka
AWS SNS
GCP Pub/Sub
RabbitMQ
PostgreSQL
MQTT
Cron
Grafana
Istio
Linkerd
NATS JetStream
GitHub
Slack
Salesforce
Zoom
Google Docs
Gmail
DigitalOcean
Crunchbase

Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.