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Head-to-head · Serverless Hosting

AWS Lambda vs Azure Functions

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score AWS Lambda #1 in Serverless Hosting 9.4/10 Free plan Free plan✓ 1 of 2 features Visit AWS Lambda
Azure Functions #3 in Serverless Hosting 9.2/10 Paid ✓ 2 of 2 features Try Azure Functions

AWS Lambda leads on 1 check, Azure Functions on 0, and 2 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAWS Lambda · 9.4/10
  • Free planonly AWS Lambda
  • Most featuresAzure Functions · 2 of 2

AWS Lambda scores higher on our rubric for serverless hosting: 9.4 against 9.2 out of 10; our editors rank them #1 and #3.

AWS Lambda offers free plan; Azure Functions doesn't. On execution model, Azure Functions gives you Duration_based where AWS Lambda offers Request_based.

AWS Lambda is the better fit for teams needing broad, mature serverless functions. Azure Functions is the better fit for azure-centric function applications.

  • AWS Lambda fits best

    Teams needing broad, mature serverless functions

  • Azure Functions fits best

    Azure-centric function applications

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Side by side

Feature AWS Lambda 9.4/10 Visit ↗ Azure Functions 9.2/10 Visit ↗
At a glance
Editor score 9.4 9.2
Ranking #1 in Serverless Hosting #3 in Serverless Hosting
Best for Teams needing broad, mature serverless functions Azure-centric function applications
Pricing model Free plan + paid Paid
Starting price $0.20/unit usage-based —
Free plan ✓ (best) —
Free trial — —
Deployment Cloud Cloud, Desktop
Platforms Web Web, Windows, Linux
Integrations 9 integrations 6 integrations
Features AWS Lambda 1/2 · Azure Functions 2/2
Custom domains ✓ ✓
Preview deployments Not checked yet ✓ (best)
Specs
Execution model Request_based Duration_based
Max execution time 900 sec Not checked yet
Deployment methods Not checked yet Cli
Runtime languages Node.js, Python, Java, C# (.NET), Ruby, Go, custom runtimes, and container images C#, Java, JavaScript, PowerShell, Python, TypeScript, Go, and custom handlers such as Rust
Our review
Pros
  • Scales automatically from zero to peak demand.
  • Supports managed and custom runtimes, ZIP packages, and container images.
  • Connects with AWS services and supports durable multi-step functions.
  • Supports event and scheduled execution with triggers and bindings
  • Offers consumption, premium, and App Service hosting options
  • Connects with Azure Storage, Event Grid, Monitor, and API Management
Cons
  • Execution duration and other AWS services can add charges.
  • Custom domains require API Gateway rather than Lambda function URLs.
  • Maximum execution time is 900 seconds.
  • Hosting plans vary in features, including deployment-slot support
  • HTTP-triggered functions have a 230-second response limit
  • Regional pricing varies across its hosting plans
Our verdict

AWS Lambda runs functions and applications without requiring teams to provision servers. It is aimed at teams building event-driven workloads, HTTP endpoints, and real-time data processing, especially those working with AWS services. The…

Read the review →

Azure Functions runs event-driven and scheduled code in Microsoft's Azure cloud. It suits teams building function applications around Azure services, with support for C#, Java, JavaScript, PowerShell, Python, TypeScript, Go, and custom…

Read the review →
  1. AWS LambdaServerless Hosting 9.4Free plan
  2. Azure FunctionsServerless Hosting 9.2Paid

Strengths and trade-offs

  • AWS Lambda — where it wins

    • Scales automatically from zero to peak demand.
    • Supports managed and custom runtimes, ZIP packages, and container images.
    • Connects with AWS services and supports durable multi-step functions.

    Where it doesn't

    • Execution duration and other AWS services can add charges.
    • Custom domains require API Gateway rather than Lambda function URLs.
    • Maximum execution time is 900 seconds.

  • Azure Functions — where it wins

    • Supports event and scheduled execution with triggers and bindings
    • Offers consumption, premium, and App Service hosting options
    • Connects with Azure Storage, Event Grid, Monitor, and API Management

    Where it doesn't

    • Hosting plans vary in features, including deployment-slot support
    • HTTP-triggered functions have a 230-second response limit
    • Regional pricing varies across its hosting plans

More comparisons

All serverless hosting comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update