vioscaleAI
Comparison

Knative vs OpenFaaS

On the evidence we track, Knative leads this comparison with a composite score of 54/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Knative full profile →OpenFaaS full profile →
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★Knative54
OpenFaaS42
Score
vioscaleAI score
Knative54 / 100medium · 52%
OpenFaaS42 / 100low · 42%
Pricing
Free tier
Knative✓
OpenFaaS✓
Model
Knativeopen_source
OpenFaaSfreemium
Price level
Knativefree
OpenFaaSlow
Transparent
Knative✓
OpenFaaS✗
Integrations
Count
Knative3
OpenFaaS12
Security
Disclosure policy
Knative✓
OpenFaaS–
Scorecard
Knative8.1
OpenFaaS4.2
Vulnerabilities
Adoption
Dependent repos
Knative446
OpenFaaS55
Github stars
Knative6,110
OpenFaaS26,249
Activity
Commits last 30d
Knative11
OpenFaaS0
Release
Cadence days
Knative6
OpenFaaS136
History
Knative20 items
OpenFaaS5 items
License
Spdx
KnativeApache-2.0
OpenFaaS–
Language
Primary
KnativeGo
OpenFaaSGo
Market
Availability
Content
Faq
Knative6 items
OpenFaaS6 items

Capabilities

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

Core
Execution substrate
KnativeContainer
OpenFaaSContainer
Language / runtime breadth
KnativeAny language via containerized HTTP/gRPC services
OpenFaaSextensive language support
Reach
Runs at global edge PoPs
Knative-
OpenFaaS-
Scale
Scale to zero
Knative✓
OpenFaaS✓
Performance
Cold-start profile
KnativeHigh (VM / container)
OpenFaaS-
Limits
Max execution duration
Knative-
OpenFaaSextended execution timeouts
Integration
Event source breadth
KnativeHTTP, CloudEvents, Kubernetes event sources
OpenFaaSHTTP, Cron, Kafka, RabbitMQ, GCP Pub/Sub, PostgreSQL, AWS SNS/SQS
HTTP endpoint trigger
Knative✓
OpenFaaS✓
Cron / scheduled invocations
Knative-
OpenFaaS✓
State
Durable state / workflow primitive
Knative✓
OpenFaaS-
Flexibility
Bring-your-own runtime / container
Knative✓
OpenFaaS✓
Deployment
Hosting
KnativeSelf-hosted only
OpenFaaSCloud + self-hosted
Ops
Built-in logs / metrics / tracing
Knative✓
OpenFaaS✓
Extensibility
CLI + IaC / framework support
Knative✓
OpenFaaS✓

What each one is

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

Knative

Leader

A platform for building event-driven applications on Kubernetes, providing brokers and event sources to integrate cloud services like AWS with local event processing workflows.

Independently observed

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

Pricing

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

Knative

Leader
Open sourceFree tier
as of verify ↗

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 ↗

Platform & deployment

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

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

Integrations

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

In common (2)
  • AWS SQS
  • Istio

Knative

Leader
6 total - 4 not shared
  • AWS S3
  • AWS DynamoDB Streams
  • Apache Camel
  • Apache Camel K
Independently observed

OpenFaaS

24 total - 22 not shared
  • Apache Kafka
  • AWS SNS
  • GCP Pub/Sub
  • RabbitMQ
  • PostgreSQL
  • MQTT
  • Cron
  • Grafana
  • Linkerd
  • NATS JetStream
  • GitHub
  • Slack
  • Salesforce
  • Zoom
  • Google Docs
  • Gmail
  • DigitalOcean
  • Crunchbase
  • Kafka
  • AWS SNS/SQS
  • Discord
  • Gumroad
Independently observed
Still deciding?

Knative or OpenFaaS: 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.