Google Cloud Functions vs OpenFaaS: Which is Better in 2026?
Choosing between Google Cloud Functions and OpenFaaS comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Google Cloud Functions wins this matchup. AWS is our overall Serverless pick. AWS Lambda is our free Serverless pick. Pick OpenFaaS if you need a fully free option.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Google Cloud Functions
Serverless compute on Google Cloud
Best for you if:
- • You want serverless functions
- • You want good for event-driven
OpenFaaS
Serverless functions on Kubernetes
Best for you if:
- • You want a fully free tool (Google Cloud Functions requires payment)
- • You want open source serverless
- • You want kubernetes native
| At a Glance | Google Cloud Functions | OpenFaaS |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Cloud & Infrastructure | Cloud & Infrastructure |
Rating | 3.2/5 | - |
Free plan | Yes | Yes |
Choose Google Cloud Functions or OpenFaaS?
Choose Google Cloud Functions if
Serverless compute on Google Cloud
- You want serverless functions
- You want good for event-driven
Choose OpenFaaS if
Serverless functions on Kubernetes
- You want a fully free tool (Google Cloud Functions requires payment)
- You want open source serverless
- You want kubernetes native
| Feature | Google Cloud Functions | OpenFaaS |
|---|---|---|
| Pricing Model | Freemium | Free |
| User Rating | ★3.2/5 107 reviews | No ratings yet |
| Categories | Cloud & InfrastructureServerless | Cloud & InfrastructureHosting & Deployment |
In-Depth Analysis
Google Cloud Functions
Serverless compute on Google Cloud
Google Cloud Functions' pricing is very generous, especially with its substantial free tier covering 2 million invocations and significant compute resources.
Strengths
- +Serverless functions
- +Good for event-driven
- +Pay per invocation
- +Easy deployment
- +Good logging
Weaknesses
- -Cold starts
- -Execution limits
- -Less features than Lambda
- -Vendor lock-in
- -Debugging limited
Key features
OpenFaaS
Serverless functions on Kubernetes
OpenFaaS offers a very generous pricing model with its free Community Edition, making it highly accessible for individual developers and small teams.
Watch out
OpenFaaS Pro pricing is not public, requiring direct contact.
Strengths
- +Open source serverless
- +Kubernetes native
- +Self-hostable
- +Good community
- +Language agnostic
Weaknesses
- -Learning curve
- -Setup complexity
- -Enterprise features paid
- -Documentation gaps
- -Operational overhead
Key features
Pricing: Google Cloud Functions vs OpenFaaS
| Plan | Google Cloud Functions | OpenFaaS |
|---|---|---|
| Tier 1 | Free Free Tier | Free Community Edition |
| Tier 2 | Usage-based Pay-as-you-go | Custom OpenFaaS Pro |
Pricing verified from each vendor's public pricing page. Compare in detail on Google Cloud Functions pricing and OpenFaaS pricing.
Who Should Use What?
On a budget?
OpenFaaS is free. Google Cloud Functions is freemium.
Go with: OpenFaaS
Want the highest-rated option?
Google Cloud Functions is rated 3.2/5. OpenFaaS has no ratings yet.
Go with: Google Cloud Functions
Value user reviews?
Google Cloud Functions: 107 reviews (3.2/5). OpenFaaS: no ratings yet.
Go with: Google Cloud Functions
3 Questions to Help You Decide
What's your budget?
Google Cloud Functions is freemium. OpenFaaS is free. Go with OpenFaaS if free matters most.
What's your use case?
Both are cloud & infrastructure tools. Compare their specific features to decide.
How important are ratings?
Google Cloud Functions is rated 3.2/5; OpenFaaS has no ratings yet.
Key Takeaways
Google Cloud Functions
- Free tier available
- Our pick for this comparison
OpenFaaS
- Completely free
The Bottom Line
Google Cloud Functions wins this matchup. AWS is our overall Serverless pick. AWS Lambda is our free Serverless pick. That said, OpenFaaS is free, hard to beat on price.
Frequently Asked Questions
Is Google Cloud Functions or OpenFaaS better?
Google Cloud Functions is rated in our evaluation. Google Cloud Functions is freemium and OpenFaaS is free.
What are Google Cloud Functions and OpenFaaS used for?
Google Cloud Functions: Serverless compute on Google Cloud. OpenFaaS: Serverless functions on Kubernetes.
What does Google Cloud Functions cost vs OpenFaaS?
Google Cloud Functions is freemium (free tier + paid plans). OpenFaaS is completely free. Visit their websites for detailed pricing.