evrtng functions vs. the Cloud Giants

How does Apache OpenWhisk on evrtng compare to AWS Lambda, Google Cloud Functions, and Azure Functions? Here's the honest breakdown.

Side-by-Side Comparison

Feature evrtng functions
Apache OpenWhisk
AWS Lambda
Amazon Web Services
Cloud Functions
Google Cloud
Azure Functions
Microsoft
// PRICING
Requests $0.20 / 1M $0.20 / 1M $0.40 / 1M $0.20 / 1M
Compute (GB·s) $0.0000167 $0.0000166667 $0.0000100 $0.000016
Free Tier (requests) 1M / month 2M / month 1M / month
Idle cost $0.00 $0.00 $0.00 $0.00 (Consumption)
Pricing model Pay-per-use Pay-per-use Pay-per-use Pay-per-use / Premium
// LANGUAGES & RUNTIMES
JavaScript / Node.js
Python
Java
Go
PHP
Ruby
Swift
.NET / C# / F#
Rust ✓ (Docker) ✓ (custom)
ANSI C ✓ (Docker) ✓ (custom)
Custom Docker Runtime ✓ Native ✓ Container Image ✓ (Premium)
Total official runtimes 11+ 9 6 7
// ARCHITECTURE & FEATURES
Event-driven triggers ✓ HTTP, MQTT, DB, Cron ✓ HTTP, S3, SQS, DynamoDB… ✓ HTTP, Pub/Sub, Firestore ✓ HTTP, Queue, Event Hub
Action Sequences (chaining) ✓ Native ✓ Step Functions ✓ Workflows (separate) ✓ Durable Functions
Web Actions / HTTP endpoints ✓ Built-in ✓ via API Gateway ✓ Built-in ✓ Built-in
Max execution time 5 min (default) 15 min 60 min (2nd gen) 10 min (Consumption)
Max memory Configurable 10,240 MB 16,384 MB 1,536 MB
Cold start performance ~100ms (Node/Python) ~100–500ms ~100–400ms ~200ms–2s
Concurrent executions Thousands 1,000 (default, scalable) 3,000 (regional) Unlimited (Consumption)
Open Source platform ✓ Apache OpenWhisk ✗ Proprietary ✗ Proprietary ✓ Partially (host)
Self-hostable ✓ Full control ✓ via Docker
Vendor lock-in Low (open standard) High High Medium
CLI tooling wsk CLI aws CLI / SAM gcloud CLI Azure CLI / Core Tools
Local development ✓ Docker / Minishift ✓ SAM Local ✓ Functions Framework ✓ Core Tools

// Data reflects platform capabilities as of 2025/2026. Pricing may vary by region and tier.

Where evrtng functions Stands Out

Most Languages

11+ official runtimes plus any custom Docker image. PHP, Swift, Ruby, Scala, Rust — languages other platforms dropped or never supported.

No Vendor Lock-in

Built on Apache OpenWhisk — an open standard. Your functions and triggers run anywhere OpenWhisk is deployed. Take your code and go.

Native Sequences

Chain actions into workflows natively with one command. No separate orchestration service (like Step Functions or Workflows) needed.

Flexible Triggers

HTTP, MQTT, database changes, cron, Kafka — connect to any event source without proprietary glue services.

Web Actions Built-in

Expose any function as a public HTTP endpoint with full control over response headers, cookies, and content type. No API Gateway required.

Battle-tested Core

Apache OpenWhisk was built by IBM, Adobe, and Red Hat. It powers production workloads at scale and is developed under the Apache Software Foundation.

Where the Cloud Giants Win

We believe in transparency. Here's where AWS, GCP, and Azure currently have an edge.

AWS Lambda

  • 15-minute max execution time (vs 5 min default)
  • Massive native integration ecosystem (200+ AWS services)
  • VPC networking, Layers, and SnapStart for Java
  • Up to 10 GB memory per function

Google Cloud Functions

  • 2M free invocations per month (generous free tier)
  • 60-minute timeout for 2nd gen functions
  • Up to 16 GB memory per function
  • Lower GB·s pricing ($0.0000100 vs $0.0000167)

Azure Functions

  • Durable Functions for long-running stateful workflows
  • Deep Microsoft ecosystem integration (.NET, VS Code)
  • Premium plan removes cold starts with pre-warmed instances
  • Strong enterprise support and compliance certifications

General Consideration

  • OpenWhisk is more complex to self-host than hosted alternatives
  • Smaller managed ecosystem — fewer native trigger integrations
  • Community smaller than AWS/Azure but growing
  • No built-in free tier on evrtng (pay from first request)

When to Choose evrtng functions

✓ Great fit if you…

Need PHP, Swift, Ruby, Scala, or ANSI C runtime support
Want to avoid vendor lock-in with an open-source platform
Need to chain multiple functions natively without extra services
Are building MQTT / IoT event-driven pipelines
Require custom Docker-based runtimes for niche languages
Want to self-host or run on Kubernetes later
Are migrating from an IBM Cloud Functions workload
Prefer transparent, usage-based billing with no surprises

→ Consider alternatives if you…

Need deep integration with AWS services (S3, DynamoDB, SQS…)
Require functions running longer than 5 minutes by default
Want a generous free tier to start experimenting at zero cost
Are building stateful long-running workflows (→ Azure Durable Functions)
Need the absolute lowest GB·s pricing (→ Google Cloud Functions)
Require enterprise compliance certifications on day one
// ready to try?

Deploy your first function today

No credit card for the first deployment. Transparent billing from request one.

$ quick start → see pricing