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Lambda (AWS Serverless) vs GitLab CI/CD

Lambda (AWS Serverless) logo

Lambda (AWS Serverless)

Cloud

Run code without thinking about servers

From
Free
Free plan
Yes
Full reviewWebsite
GitLab CI/CD logo

GitLab CI/CD

Developer Tools

Automatically build, test, deploy, and monitor your applications with GitLab CI/CD

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: 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; GitLab CI/CD compute minute quotas for Premium and Ultimate tiers not disclosed in documentation
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Lambda (AWS Serverless) and GitLab CI/CD actually diverge.

Attributes where Lambda (AWS Serverless) and GitLab CI/CD differ
AttributeLambda (AWS Serverless)GitLab CI/CD
Pricing modelusage-basedfreemium
PlatformsWeb, ApiWeb
CategoryCloudDeveloper Tools
Founded2014Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

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 GitLab CI/CD

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 GitLab CI/CD
  • API backends behind API Gatewaynot GitLab CI/CD
  • Processing S3, DynamoDB, SQS and Kinesis eventsnot GitLab CI/CD
  • Scheduled jobs without a always-on instancenot GitLab CI/CD
  • Edge compute through Lambda@Edgenot GitLab CI/CD

GitLab CI/CD

  • Reducing open source project infrastructure costs with public project discountsnot Lambda (AWS Serverless)
  • Enforcing monthly CI/CD spending limits and quota notificationsnot Lambda (AWS Serverless)
  • Allocating compute minutes to open source contributors affordablynot Lambda (AWS Serverless)
  • Forecasting CI/CD spending patterns across multiple projectsnot Lambda (AWS Serverless)
  • Providing private runners for cost control without owning infrastructurenot 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

GitLab CI/CD

  • Compute minute quotas for Premium and Ultimate tiers not disclosed in documentation
  • Additional compute minutes beyond quota incur charges; exact pricing not specified

Pricing, plan by plan

Lambda (AWS Serverless)

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

GitLab CI/CD

Free
  • FreeFree
    • 400 compute minutes per month for free tier namespaces
    • Linux x86-64 runners at 1x cost factor
  • Premium$null/tiered
    • Higher monthly compute minute quotas than free tier
    • Additional compute minutes available for purchase
  • Ultimate$null/tiered
    • Highest monthly compute minute allocations
    • Additional compute minutes available for purchase

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 GitLab CI/CD if

  • You want to start without paying.
GitLab CI/CD review

Questions people ask

Is Lambda (AWS Serverless) or GitLab CI/CD better?
Neither clearly leads. Lambda (AWS Serverless) starts at Free and GitLab CI/CD at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Lambda (AWS Serverless) or GitLab CI/CD?
Lambda (AWS Serverless) starts at Free and GitLab CI/CD at Free.
Does Lambda (AWS Serverless) or GitLab CI/CD run on more platforms?
Lambda (AWS Serverless) runs on Web, Api. GitLab CI/CD 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 GitLab CI/CD is typically brought in for.
What can Lambda (AWS Serverless) do that GitLab CI/CD 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
GitLab CI/CD: How many GitLab CI compute minutes does the free tier include?

The free tier of GitLab CI includes 400 compute minutes per month for free tier namespaces on GitLab.com.

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
GitLab CI/CD: What is the cost factor for different GitLab CI runner types?

Linux x86-64 small runners cost 1x; medium runners cost 2x; large runners cost 3x. macOS and Windows runners have cost factors of 6-12x and are in beta status.

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
GitLab CI/CD: Do public open-source projects get discounts on GitLab CI compute minutes?

Public open-source projects receive a 0.5x discount on compute minutes. Public forks of GitLab open-source projects receive a 0.008x discount.

Source
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