AWS Lambda vs Fastly Compute: Which is Better in 2026?
Choosing between AWS Lambda and Fastly Compute 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: AWS Lambda is our free Serverless pick. AWS is our overall Serverless pick. Pick Fastly Compute if you need cloud & infrastructure.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
AWS Lambda
Run code without managing servers, pay only for compute time
Best for you if:
- • You want a free tier before you commit
- • You want industry-standard serverless platform
- • You want integrates with entire AWS ecosystem
Fastly Compute
Edge computing platform from Fastly
Best for you if:
- • You want powerful edge compute
- • You want wasm support
| At a Glance | AWS Lambda | Fastly Compute |
|---|---|---|
Starts at | FreeFree tier available | Custom |
Best For | Serverless | Cloud & Infrastructure |
Rating | 3.5/5 | 4.6/5 |
Free plan | Yes | No |
Choose AWS Lambda or Fastly Compute?
Choose AWS Lambda if
Run code without managing servers, pay only for compute time
- You want a free tier before you commit
- You want industry-standard serverless platform
- You want integrates with entire AWS ecosystem
- Your work is serverless-shaped, not cloud & infrastructure-shaped
Choose Fastly Compute if
Edge computing platform from Fastly
- You want powerful edge compute
- You want wasm support
- Your work is cloud & infrastructure-shaped, not serverless-shaped
| Feature | AWS Lambda | Fastly Compute |
|---|---|---|
| Pricing Model | Freemium | Paid |
| User Rating | ★3.5/5 1,570 reviews | ★4.6/5 116 reviews |
| Categories | ServerlessCloud & Infrastructure | Cloud & InfrastructureDevOps |
In-Depth Analysis
AWS Lambda
Run code without managing servers, pay only for compute time
Lambda pioneered serverless compute and remains the default choice in the AWS ecosystem.
Watch out
Duration billing rounds up to the nearest millisecond, but memory billing is per-GB-second at allocated memory (not used memory). Allocating 1 GB but using 200 MB still bills for 1 GB, right-sizing memory is critical
Strengths
- +Industry-standard serverless platform
- +Integrates with entire AWS ecosystem
- +Scales automatically to any load
- +Pay only for compute time used
- +Supports many languages and runtimes
Weaknesses
- -Cold starts can affect latency
- -Complex pricing model
- -15-minute execution time limit
- -Debugging can be challenging
- -Vendor lock-in with AWS services
Key features
Fastly Compute
Edge computing platform from Fastly
However, edge computing platforms are typically premium services, and the lack of transparent pricing suggests it's likely on the higher end, tailored for enterprises with specific performance needs.
Strengths
- +Powerful edge compute
- +Wasm support
- +Low latency
- +Good for media
- +Enterprise ready
Weaknesses
- -Expensive
- -Learning curve
- -Smaller ecosystem
- -Complex pricing
- -Enterprise focused
Key features
Pricing: AWS Lambda vs Fastly Compute
| Plan | AWS Lambda | Fastly Compute |
|---|---|---|
| Tier 1 | $0 Free Tier | Contact us Usage-Based |
| Tier 2 | $0.20/million Pay-as-you-go | N/A |
| Tier 3 | $0.16/million Graviton2 (ARM) | N/A |
| Tier 4 | Up to 17% off Savings Plans | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on AWS Lambda pricing and Fastly Compute pricing.
Who Should Use What?
On a budget?
AWS Lambda has a free tier. Fastly Compute is paid only.
Go with: AWS Lambda
Want the highest-rated option?
AWS Lambda: 3.5/5 (1,570 reviews). Fastly Compute: 4.6/5 (116 reviews).
Go with: Fastly Compute
Value user reviews?
AWS Lambda: 1,570 reviews (3.5/5). Fastly Compute: 116 reviews (4.6/5).
Go with: AWS Lambda
3 Questions to Help You Decide
What's your budget?
AWS Lambda is freemium. Fastly Compute is paid. AWS Lambda lets you start free.
What's your use case?
AWS Lambda is a serverless tool. Fastly Compute is in cloud & infrastructure. Pick the category that matches your needs.
How important are ratings?
Fastly Compute is rated higher: 4.6/5 vs 3.5/5.
Key Takeaways
AWS Lambda
- Larger review base (1,570 reviews)
- Free tier available
- Our pick for this comparison
Fastly Compute
- Higher user rating: 4.6/5 vs 3.5/5
- Better fit for cloud & infrastructure
The Bottom Line
AWS Lambda is our free Serverless pick. AWS is our overall Serverless pick.
Frequently Asked Questions
Is AWS Lambda or Fastly Compute better?
AWS Lambda is rated in our evaluation. AWS Lambda is freemium and Fastly Compute is paid.
What are AWS Lambda and Fastly Compute used for?
AWS Lambda: Run code without managing servers, pay only for compute time. Fastly Compute: Edge computing platform from Fastly.
What does AWS Lambda cost vs Fastly Compute?
AWS Lambda is freemium (free tier + paid plans). Fastly Compute is a paid tool. Visit their websites for detailed pricing.