# Lambda

## AWS Lambda — commitment brief

> **Data sourced**: March 2026. Verify current figures at the [AWS Pricing Calculator](https://calculator.aws/pricing/2/home).

### Coverage summary

AWS Lambda is covered by **Compute Savings Plans** (1-yr and 3-yr terms), which provide up to 17% savings on Lambda duration and request charges versus on-demand pricing. Lambda became eligible for Compute Savings Plans in February 2020. The Compute Savings Plan is a single hourly spend commitment that automatically applies across Lambda, EC2, and Fargate — there is no Lambda-only savings plan, and there are no per-function Reserved Instances for Lambda. The discount for Lambda is materially lower than for EC2 (where Compute Savings Plans offer up to 66%), reflecting Lambda's already-competitive on-demand pricing model.

**What is covered**: Lambda request charges (per-invocation billing) and Lambda duration charges (GB-second compute time). Both are eligible for the Compute Savings Plan discount.

**What is not covered**: Lambda Provisioned Concurrency charges (billed separately at a different rate; the base Savings Plan covers duration charges but Provisioned Concurrency has its own on-demand pricing layer that is also eligible for the Savings Plan), Lambda\@Edge invocations and duration (billed under CloudFront pricing; not covered by Compute Savings Plans), and any data transfer charges.

### Savings Plan types

> AWS Lambda is covered exclusively by **Compute Savings Plans** — the most flexible Savings Plan type, which applies a single hourly spend commitment across Lambda, EC2 instance compute, and Fargate in any region. Lambda-specific savings (up to 17%) are lower than EC2 savings (up to 66%) under the same plan because Lambda on-demand pricing is already cost-effective. There are no EC2-style Standard or Convertible RI equivalents for Lambda.

### Usage type coverage

| Usage Type                           | Compute Savings Plan | 1-yr discount | 3-yr discount | Notes                                                              |
| ------------------------------------ | -------------------- | ------------- | ------------- | ------------------------------------------------------------------ |
| Lambda request charges (invocations) | ✅ Yes                | up to \~17%   | up to \~17%   | Per-invocation billing covered                                     |
| Lambda duration charges (GB-second)  | ✅ Yes                | up to \~17%   | up to \~17%   | Compute time billing covered                                       |
| Lambda Provisioned Concurrency       | ✅ Yes                | up to \~17%   | up to \~17%   | Provisioned Concurrency duration charges are Savings Plan-eligible |
| Lambda\@Edge                         | ❌ No                 | —             | —             | Billed under CloudFront; not eligible for Compute Savings Plans    |
| Lambda SnapStart (resume charges)    | ✅ Yes                | up to \~17%   | up to \~17%   | Duration charges covered; subject to standard Savings Plan rates   |

## Regional availability

**Commitment scope**: Region-flexible — Compute Savings Plans apply automatically across Lambda, EC2, and Fargate in any supported AWS region; a single plan covers usage regardless of which region the Lambda functions run in.

Available in all commercial AWS regions where Lambda is offered. Compute Savings Plans automatically apply to Lambda duration and request charges across any region without requiring per-region commitments.

**Partition notes**: Lambda is available in GovCloud (us-gov-*) regions. Compute Savings Plans can cover GovCloud Lambda usage, but must be purchased from a linked standard AWS account — they cannot be purchased directly from GovCloud accounts. Savings Plans are not available in China (cn-*) regions.

⚠️ Regional and partition availability varies by instance type. Always verify at the [AWS Pricing Console](https://aws.amazon.com/ec2/pricing/) before purchasing.

### Archera

AWS Lambda is within Archera's commitment management scope via Compute Savings Plan coverage. Archera can automate Compute Savings Plan purchases that cover Lambda usage (alongside EC2 and Fargate usage under the same plan), monitor Lambda spend utilization against the hourly commitment, and wrap commitments in a GRI/GSP — eliminating downside risk on over-commitment while preserving the Savings Plan discount. Because Lambda, EC2, and Fargate share a single Compute Savings Plan, Archera optimizes the aggregate commitment across all three services.

***

**Sources**

* [Compute Savings Plans](https://aws.amazon.com/savingsplans/compute-pricing/)
* [AWS Lambda participates in Compute Savings Plans](https://aws.amazon.com/about-aws/whats-new/2020/02/aws-lambda-participates-in-compute-savings-plans/)
* [Savings Plan Update: Save Up to 17% On Your Lambda Workloads](https://aws.amazon.com/blogs/aws/savings-plan-update-save-up-to-17-on-your-lambda-workloads/)
* [AWS Lambda Pricing](https://aws.amazon.com/lambda/pricing/)
* [What are Savings Plans?](https://docs.aws.amazon.com/savingsplans/latest/userguide/what-is-savings-plans.html)

⚠️ Discount percentages are approximate. Lambda savings under Compute Savings Plans are lower than EC2 savings. Always verify with the [AWS Pricing Calculator](https://calculator.aws/pricing/2/home).