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Lambda (AWS Serverless) vs Harness

Lambda (AWS Serverless) logo

Lambda (AWS Serverless)

Cloud

Run code without thinking about servers

From
Free
Free plan
Yes
Visit Lambda (AWS Serverless)Full review
Harness logo

Harness

Developer Tools

Software delivery platform across CI, CD, security testing and cost management

From
Free
Free plan
Yes
Visit HarnessFull review

The short version

  • Both are free.
  • Where Lambda (AWS Serverless) falls short: provisioned concurrency, used to avoid cold starts, is charged separately at $0.0000041667 per GB-second whether or not the function runs.
  • Where Harness falls short: essentials and Enterprise pricing requires sales contact; no published rates.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which Lambda (AWS Serverless) and Harness actually diverge.

Attributes where Lambda (AWS Serverless) and Harness differ
AttributeLambda (AWS Serverless)Harness
Pricing modelUsage-basedFreemium
PlatformsWeb, APIWeb
CategoryCloudDeveloper Tools

Identical on both: starting price (Free), free tier (Yes).

Not yet recorded: founded for Harness.

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Lambda (AWS Serverless)

  • Function-as-a-Service
  • Event-driven execution
  • Auto-scaling
  • Pay-per-use
  • Multiple languages
  • Concurrency limits
  • Dead Letter Queues
  • Environment variables

Only in Harness

Nothing recorded that Lambda (AWS Serverless) does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Lambda (AWS Serverless)

  • Event-driven functions without managing serversnot Harness
  • API backends behind API Gatewaynot Harness
  • Processing S3, DynamoDB, SQS and Kinesis eventsnot Harness
  • Scheduled jobs without a always-on instancenot Harness
  • Edge compute through Lambda@Edgenot Harness

Harness

  • Deploying apps to AWS, Azure, and Google Cloud with rollbacksnot Lambda (AWS Serverless)
  • Integrating security scanners throughout build pipelines before productionnot Lambda (AWS Serverless)
  • Automating cloud cost reduction and tracking unit-level expensesnot Lambda (AWS Serverless)
  • Enabling developers to provision infrastructure without operations bottlenecksnot Lambda (AWS Serverless)
  • Assessing deployment frequency and lead time productivity metricsnot Lambda (AWS Serverless)

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Lambda (AWS Serverless)

  • Billed on two axes at once, $0.20 per million requests plus $0.0000166667 per GB-second of duration, so memory settings change the bill as much as traffic does
  • Provisioned concurrency, used to avoid cold starts, is charged separately at $0.0000041667 per GB-second whether or not the function runs
  • Ephemeral storage beyond the included 512 MB is metered
  • Lambda@Edge costs $0.60 per million requests, three times the standard request rate
  • VPC use and cross-region data transfer carry EC2 charges on top

Harness

  • Essentials and Enterprise pricing requires sales contact; no published rates
  • DevOps Essentials has no on-premises deployment option
  • Internal Developer Portal requires minimum 20 developer licenses
  • Pipeline execution history retention 6 months (Essentials) vs 25 months as add-on (Enterprise)

Pricing, plan by plan

Lambda (AWS Serverless)

Free
  • Free TierFree
    • 1M free requests/month
    • 400,000 GB-seconds/month
    • Always free

Harness

Free
  • FreeFree
    • Starter platform for software delivery lifecycle
    • Open source options available (Harness Open Source, Litmus Chaos)
  • EssentialsOn request
    • Growing organizations with small to mid-size teams
    • Packaged DevOps Essentials bundle
    • Continuous software delivery capabilities
  • EnterpriseOn request
    • Large-scale organizations
    • Pick any modules based on needs
    • Advanced features

Which should you pick?

Choose Lambda (AWS Serverless) if

  • You need function-as-a-service.
  • You want to start without paying.
  • You work on Web, API.
  • You also want event-driven execution.
Lambda (AWS Serverless) review

Choose Harness if

  • You want to start without paying.
Harness review

Questions people ask

Is Lambda (AWS Serverless) or Harness better?
Neither clearly leads. Lambda (AWS Serverless) starts at Free and Harness at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Lambda (AWS Serverless) or Harness?
Lambda (AWS Serverless) starts at Free and Harness at Free.
Does Lambda (AWS Serverless) or Harness run on more platforms?
Lambda (AWS Serverless) runs on Web, API. Harness runs on Web.
Can I use Lambda (AWS Serverless) for free?
Both have a free tier, so you can try either at no cost before committing.
What is Lambda (AWS Serverless) best used for?
Lambda (AWS Serverless) is most often used for event-driven functions without managing servers, api backends behind api gateway, processing s3, dynamodb, sqs and kinesis events, scheduled jobs without a always-on instance. Of those, event-driven functions without managing servers and api backends behind api gateway are not what Harness is typically brought in for.
What can Lambda (AWS Serverless) do that Harness cannot?
Lambda (AWS Serverless) covers Function-as-a-Service, Event-driven execution, Auto-scaling, Pay-per-use.

Answered from the vendors’ own pages

Lambda (AWS Serverless): Is there a free tier for AWS Lambda?

Yes. AWS Lambda offers a free tier including 1 million requests per month, 400,000 GB-seconds per month, and 100 GB monthly response streaming.

Source
Harness: Is there a free Harness plan?

Yes, Harness offers a free plan for individual developers and small teams with open source options including Harness Open Source and Litmus Chaos.

Source
Lambda (AWS Serverless): How is AWS Lambda charged?

Lambda charges $0.20 per million requests. Duration charges are $0.0000166667 per GB-second for x86 (up to 6 billion GB-seconds/month in US East Ohio with tiered pricing). Ephemeral storage over the included 512 MB costs $0.0000000309 per GB-second. Provisioned Concurrency costs $0.0000041667 per GB-second with a 5-minute minimum.

Source
Harness: What are Harness's paid pricing tiers?

Harness offers Essentials for growing teams and Enterprise for large-scale organizations. Both require contacting sales for custom pricing. Pricing is based on modules and features selected.

Source
Lambda (AWS Serverless): What are Lambda Durable Functions pricing?

Lambda Durable Functions include operations at $8.00 per million (start execution, steps, waits). Data written costs $0.25 per GB. Data retention is $0.15 per GB-month with configurable 1-90 day retention (default 14 days).

Source
Harness: Can Harness be deployed on-premises?

Enterprise plans include self-managed platform deployment option. DevOps Essentials bundle does not offer on-premises deployment.

Source
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