vioscaleAI
Comparison

OpenFaaS vs Vercel Functions

On the evidence we track, Vercel Functions leads this comparison with a composite score of 90/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

OpenFaaS full profile →Vercel Functions full profile →
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OpenFaaS42
★Vercel Functions90
Score
vioscaleAI score
OpenFaaS42 / 100low · 42%
Vercel Functions90 / 100medium · 62%
Pricing
Free tier
OpenFaaS✓
Vercel Functions✓
Model
OpenFaaSfreemium
Vercel Functionsfreemium
Price level
OpenFaaSlow
Vercel Functionslow
Starting price
OpenFaaS–
Vercel Functions$1.20
Transparent
OpenFaaS✗
Vercel Functions✓
Integrations
Count
OpenFaaS12
Vercel Functions–
Security
Disclosure policy
OpenFaaS–
Vercel Functions✓
Gdpr
OpenFaaS–
Vercel Functions✓
Hipaa
OpenFaaS–
Vercel Functions✓
Iso27001
OpenFaaS–
Vercel Functions✓
Pci
OpenFaaS–
Vercel Functions✓
Scorecard
OpenFaaS4.2
Vercel Functions–
Soc2
OpenFaaS–
Vercel Functions✓
Trust center
OpenFaaS–
Vercel Functionshttps://vercel.com/docs/security
Vulnerabilities
Reliability
Sla pct
OpenFaaS–
Vercel Functions99.99
Status page
OpenFaaS–
Vercel Functions✓
Adoption
Dependent repos
OpenFaaS55
Vercel Functions–
Github stars
OpenFaaS26,249
Vercel Functions–
Activity
Commits last 30d
OpenFaaS0
Vercel Functions–
Release
Cadence days
OpenFaaS136
Vercel Functions–
History
OpenFaaS5 items
Vercel Functions–
Language
Primary
OpenFaaSGo
Vercel Functions–
Market
Availability
Content
Faq
OpenFaaS6 items
Vercel Functions5 items

Capabilities

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

Core
Execution substrate
OpenFaaSContainer
Vercel Functions-
Language / runtime breadth
OpenFaaSextensive language support
Vercel FunctionsNode.js, Python, Go, and more
Reach
Runs at global edge PoPs
OpenFaaS-
Vercel Functions✓
Scale
Scale to zero
OpenFaaS✓
Vercel Functions✓
Performance
Cold-start profile
OpenFaaS-
Vercel FunctionsLow
Limits
Max execution duration
OpenFaaSextended execution timeouts
Vercel Functions-
Integration
Event source breadth
OpenFaaSHTTP, Cron, Kafka, RabbitMQ, GCP Pub/Sub, PostgreSQL, AWS SNS/SQS
Vercel FunctionsHTTP (GET, POST)
HTTP endpoint trigger
OpenFaaS✓
Vercel Functions✓
Cron / scheduled invocations
OpenFaaS✓
Vercel Functions-
State
Durable state / workflow primitive
OpenFaaS-
Vercel Functions-
Flexibility
Bring-your-own runtime / container
OpenFaaS✓
Vercel Functions-
Deployment
Hosting
OpenFaaSCloud + self-hosted
Vercel FunctionsCloud only
Ops
Built-in logs / metrics / tracing
OpenFaaS✓
Vercel Functions✓
Extensibility
CLI + IaC / framework support
OpenFaaS✓
Vercel Functions✓

What each one is

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

OpenFaaS

A framework for deploying functions to Kubernetes with automatic scaling, event-driven triggers, multi-tenancy support, and enterprise features including SSO, RBAC, and direct engineering support.

Independently observed

Vercel Functions

Leader

A serverless functions platform for building and deploying API routes, webhooks, and event handlers. Supports multiple runtimes with built-in observability and local testing via CLI.

Independently observed

Pricing

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

OpenFaaS

HybridFree tier14-day trial

Free community edition; subscription-based standard and enterprise tiers

  • Community EditionFree
    • Legacy UI portal
    • REST API
    • Basic metrics & observability
    • Cron trigger
  • Standard14-day trial available; custom pricing
    • Scale to zero
    • Kafka/RabbitMQ/GCP Pub/Sub/PostgreSQL/AWS SNS/SQS triggers
    • UI dashboard
    • Grafana dashboards
    • Kubernetes Custom Resources (CRD)
    • +4 more
  • EnterpriseContact sales
    • Enterprise support with SLA
    • Direct engineering support via Slack
    • Annual architecture review
    • Function Builder REST API
    • Identity and Access Management
    • +3 more
as of verify ↗

Vercel Functions

Leader
from $1.20/M eventsHybridFree tier

Hobby free tier. Pro monthly subscription with 1M invocations included. Usage-based pricing for overages and add-on services.

  • HobbyFree
    • 12K function invocations/month
    • Image optimization
    • Speed Insights
    • Web Analytics
  • ProMonthly. 1M included invocations. Usage-based overages.
    • 1M function invocations included
    • Usage-based pricing for overages
    • Observability Plus option
    • Multiple runtime support
  • EnterpriseContact sales
as of verify ↗

Platform & deployment

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

Platforms
Web
OpenFaaS✓
Vercel Functions✓
CLI
OpenFaaS✓
Vercel Functions✓
Deployment
Cloud / SaaS
OpenFaaS✓
Vercel Functions✓
Self-hosted
OpenFaaS✓
Vercel Functions✗
On-premise
OpenFaaS✓
Vercel Functions✗
Hybrid
OpenFaaS✓
Vercel Functions✗
Air-gapped
OpenFaaS✓
Vercel Functions✗

Integrations

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

OpenFaaS

24 total
  • Apache Kafka
  • AWS SQS
  • AWS SNS
  • GCP Pub/Sub
  • RabbitMQ
  • PostgreSQL
  • MQTT
  • Cron
  • Grafana
  • Istio
  • Linkerd
  • NATS JetStream
  • GitHub
  • Slack
  • Salesforce
  • Zoom
  • Google Docs
  • Gmail
  • DigitalOcean
  • Crunchbase
  • Kafka
  • AWS SNS/SQS
  • Discord
  • Gumroad
Independently observed

Vercel Functions

Leader

Not documented yet.

Still deciding?

OpenFaaS or Vercel Functions: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

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