# AWS Lambda vs Azure Functions

**Leader by vioscaleAI score:** AWS Lambda

| Attribute | AWS Lambda | Azure Functions |
|---|---|---|
| **vioscaleAI score** | 76.4 (72% (medium)) | 44.4 (30% (low)) |
| content.faq | `[{"answer":"A serverless computing platform that runs code in response to events on fully managed infrastructure, automatically handling scaling and charging only for actual execution time. It is indexed under Serverless & Edge Platforms.","source":"https://aws.amazon.com/bedrock/pricing/?nc2=h_pr_br","question":"What is AWS Lambda?","confidence":0.6},{"answer":"AWS Lambda offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://aws.amazon.com/ec2/pricing/?nc2=h_pr_ec2","question":"Is AWS Lambda free?","confidence":0.6},{"answer":"AWS Lambda supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://aws.amazon.com/ec2/pricing/?nc2=h_pr_ec2","question":"What platforms does AWS Lambda support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for AWS Lambda, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://aws.amazon.com/bedrock/pricing/?nc2=h_pr_br","question":"Can AWS Lambda be self-hosted?","confidence":0.6},{"answer":"We have confirmed 13 integrations for AWS Lambda, including AWS S3, AWS DynamoDB, AWS Kinesis, AWS SQS, AWS EventBridge, Amazon MSK, AWS CloudWatch and AWS X-Ray, plus 5 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://aws.amazon.com/bedrock/pricing/?nc2=h_pr_br","question":"What does AWS Lambda integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, ISO 27001, HIPAA and GDPR for AWS Lambda. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as AWS Lambda not holding them. Always confirm compliance directly before you rely on it.","source":"https://aws.amazon.com/trust-center/?nc1=f_cc","question":"What security certifications does AWS Lambda have?","confidence":0.7},{"answer":"AWS Lambda is available worldwide. Its primary market is the United States.","source":"https://aws.amazon.com/bedrock/pricing/?nc2=h_pr_br","question":"Where is AWS Lambda available?","confidence":0.5}]` | `[{"answer":"A cloud platform for building and running applications composed of small, independent functions triggered by events, supporting multiple programming languages and eliminating the need to manage infrastructure. It is indexed under Serverless & Edge Platforms.","source":"https://azure.microsoft.com/en-us/pricing/","question":"What is Azure Functions?","confidence":0.6},{"answer":"Azure Functions offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://azure.microsoft.com/en-us/products/functions","question":"Is Azure Functions free?","confidence":0.6},{"answer":"We have confirmed browser-based access to Azure Functions. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://azure.microsoft.com/en-us/pricing/","question":"What platforms does Azure Functions support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Azure Functions, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://azure.microsoft.com/en-us/pricing/","question":"Can Azure Functions be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Azure Functions. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Azure Functions not holding them. Always confirm compliance directly before you rely on it.","source":"https://azure.microsoft.com/en-us/explore/trusted-cloud/","question":"What security certifications does Azure Functions have?","confidence":0.7}]` |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | AWS service providing serverless infrastructure for AI agents and language models, with integrated knowledge base capabilities for retrieval-augmented generation, automated data processing, and model fine-tuning. | A cloud-based serverless compute service that executes code in response to events, supporting multiple programming languages and letting developers focus on business logic rather than infrastructure management. |
| features.capabilities | `{"hosting":"cloud","triggers":"220+ AWS services including S3, DynamoDB, Kinesis, SQS, API calls, event streams","languages":"Python, Node.js, Java, C#, Go, Ruby, custom runtimes","cold_start":"provisioned","cli_and_iac":true,"http_trigger":true,"durable_state":true,"scale_to_zero":true,"custom_runtime":true,"runtime_substrate":"microvm","observability_builtin":true}` | `{"hosting":"cloud","triggers":"event-driven","languages":".NET, Java, Python, Node.js, and additional languages supported","observability_builtin":true}` |
| integrations.count | 220 | - |
| integrations.list | `[{"name":"AWS S3"},{"name":"AWS DynamoDB"},{"name":"AWS Kinesis"},{"name":"AWS SQS"},{"name":"AWS EventBridge"},{"name":"Amazon MSK"},{"name":"AWS CloudWatch"},{"name":"AWS X-Ray"},{"name":"Amazon S3"},{"name":"Amazon DynamoDB"},{"name":"Amazon Kinesis"},{"name":"Apache Kafka"},{"name":"Amazon SQS"},{"name":"Amazon DynamoDB Streams"},{"name":"S3","native":true,"direction":"inbound"},{"name":"SharePoint","native":true,"direction":"inbound"},{"name":"Confluence","native":true,"direction":"inbound"}]` | - |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":["DE"],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"web":true}` | `{"web":true}` |
| pricing | `{"type":"usage","plans":[{"free":false,"name":"Standard","components":[{"per":{"qty":1000,"unit":"API calls"},"kind":"metered","amount":1,"currency":"USD"}],"contactSales":false},{"free":false,"name":"Flex","contactSales":false},{"free":false,"name":"Priority","contactSales":false},{"free":false,"name":"Reserved","contactSales":false}],"addOns":[{"name":"Fine-tuning","components":[{"per":{"qty":1,"unit":"image"},"kind":"metered","amount":0.005,"currency":"USD"}]},{"name":"Knowledge Base per-page processing","components":[{"per":{"qty":1,"unit":"page"},"kind":"metered","amount":0.01,"currency":"USD"}]}],"summary":"Usage-based pricing per token and per API call; fine-tuning $0.005/image; knowledge base $0.010/page","currency":"USD","sourceUrl":"https://aws.amazon.com/bedrock/pricing/?nc2=h_pr_br","retrievedAt":"2026-09-23T13:33:51.088Z","startingPrice":{"unit":"API calls","amount":1,"currency":"USD"}}` | `{"type":"usage","summary":"Consumption-based pricing","sourceUrl":"https://azure.microsoft.com/en-us/products/functions","retrievedAt":"2026-08-01T15:33:43.454Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | low | unknown |
| pricing.starting_price | `{"amount":1,"currency":"USD"}` | - |
| pricing.transparent | yes | - |
| reliability.status_page | yes | yes |
| security.disclosure_policy | yes | - |
| security.fedramp | yes | - |
| security.gdpr | yes | yes |
| security.hipaa | yes | - |
| security.iso27001 | yes | - |
| security.pci | yes | - |
| security.soc2 | yes | - |
| security.trust_center | https://aws.amazon.com/security/?nc1=f_cc | https://azure.microsoft.com/en-us/explore/security/ |

## Capabilities (Serverless & Edge Platforms)

| Capability | AWS Lambda | Azure Functions |
|---|:--:|:--:|
| **Core** |  |  |
| Execution substrate | MicroVM | - |
| Language / runtime breadth | Python, Node.js, Java, C#, Go, Ruby, custom runtimes | .NET, Java, Python, Node.js, and additional languages supported |
| **Reach** |  |  |
| Runs at global edge PoPs | - | - |
| **Scale** |  |  |
| Scale to zero | ✓ | - |
| **Performance** |  |  |
| Cold-start profile | Provisioned concurrency | - |
| **Limits** |  |  |
| Max execution duration | - | - |
| **Integration** |  |  |
| Event source breadth | 220+ AWS services including S3, DynamoDB, Kinesis, SQS, API calls, event streams | event-driven |
| HTTP endpoint trigger | ✓ | - |
| Cron / scheduled invocations | - | - |
| **State** |  |  |
| Durable state / workflow primitive | ✓ | - |
| **Flexibility** |  |  |
| Bring-your-own runtime / container | ✓ | - |
| **Deployment** |  |  |
| Hosting | Cloud only | Cloud only |
| **Ops** |  |  |
| Built-in logs / metrics / tracing | ✓ | ✓ |
| **Extensibility** |  |  |
| CLI + IaC / framework support | ✓ | - |

*Source: vioscaleAI. Generated 2026-10-16T18:31:07.014Z. "-" = undocumented, not absent.*