# OpenFaaS vs Vercel Functions

**Leader by Vioscale score:** Vercel Functions

| Attribute | OpenFaaS | Vercel Functions |
|---|---|---|
| **Vioscale score** | 41.1 (42% (low)) | 91.9 (61% (medium)) |
| activity.commits_last_30d | 0 | - |
| adoption.dependent_repos | 55 | - |
| adoption.github_stars | 26,231 | - |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | Open-source serverless framework that abstracts cloud provider differences, allowing you to deploy and run functions across multiple clouds, on-premises, and Kubernetes with extended execution timeouts and support for many programming languages. | Serverless function execution with automatic optimization, multi-runtime support (Node.js, Python, Go, etc.), regional deployment options, and built-in observability for monitoring invocations and costs. |
| features.capabilities | `{"hosting":"both","languages":"extensive language support","max_duration":"extended execution timeouts","custom_runtime":true}` | `{"hosting":"cloud","triggers":"HTTP (GET, POST)","languages":"Node.js, Python, Go, and more","cold_start":"low","cli_and_iac":true,"http_trigger":true,"scale_to_zero":true,"edge_distributed":true,"observability_builtin":true}` |
| integrations.count | 20 | - |
| integrations.list | `[{"name":"Apache Kafka"},{"name":"AWS SQS"},{"name":"AWS SNS"},{"name":"GCP Pub/Sub"},{"name":"RabbitMQ"},{"name":"PostgreSQL"},{"name":"MQTT"},{"name":"Cron"},{"name":"Grafana"},{"name":"Istio"},{"name":"Linkerd"},{"name":"NATS JetStream"},{"name":"GitHub"},{"name":"Slack"},{"name":"Salesforce"},{"name":"Zoom"},{"name":"Google Docs"},{"name":"Gmail"},{"name":"DigitalOcean"},{"name":"Crunchbase"}]` | - |
| language.primary | Go | - |
| market.availability | `{"hqCountry":"GB","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"linux":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Community Edition","summary":"Free for personal use","features":["15 functions","1 namespace","Public repositories only","Basic autoscaling up to 5/5 replicas","Basic metrics & observability","Cron trigger (limited functionality)","Legacy UI portal","REST API"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Limited version for personal-use, hobbyists and experimentation. 60-day limit on commercial use.","contactSales":false,"includedLimits":{"functions":"15","namespaces":"1","repositories":"public only"}},{"free":false,"name":"OpenFaaS Standard","summary":"$1,250/month","features":["500 functions","1 namespace","Private registries for functions","Fine-tuned autoscaling for RPS, Capacity & CPU","Scale to Zero","Event triggers: Kafka, RabbitMQ, GCP Pub/Sub, PostgreSQL, AWS SNS/SQS","Queue-worker (JetStream-based)","Retry failed messages","New UI dashboard","Grafana dashboards for monitoring","Manage functions with Custom Resource (CRD)","Air-gapped / offline usage","Istio/Linkerd compatibility","Self-service email support"],"commitment":"annual","components":[{"kind":"fixed","amount":1250,"period":"month","currency":"USD"}],"description":"Production-ready functions for a single team or tenant. Scalable and event-driven automation for a business.","contactSales":false,"includedLimits":{"functions":"500","namespaces":"1"}},{"free":false,"name":"OpenFaaS for Enterprises","summary":"Custom pricing","features":["5000 functions per namespace","Unlimited namespaces","Multi-tenancy with secure isolation (gVisor)","Function Builder API (REST)","Dedicated async queues (JetStream)","Single Sign-On (SSO) with OpenID Connect","Role Based Access Control (RBAC)","Web Identity Federation for CI/CD","Auditing via webhook","Business day support with SLA","Direct to Engineering Support (Slack)","Annual architecture review","Security advisories to nominated email","Developer licenses included"],"description":"Highest level of service for enterprises and multi-tenant hosting. Upgraded support, compliance & multi-tenancy features.","contactSales":true,"includedLimits":{"functions":"5000 per namespace","namespaces":"unlimited"}}],"addOns":[{"name":"Enterprise Support"}],"summary":"Community Edition free; Standard from $1,250/month with 14-day trial; Enterprise custom pricing","currency":"USD","freeTier":true,"sourceUrl":"https://www.openfaas.com/pricing/","retrievedAt":"2026-08-13T09:44:11.430Z","freeTrialDays":14,"startingPrice":{"amount":1250,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"usage","plans":[{"free":true,"name":"Hobby","components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"active_cpu":"4 hours/month","invocations":"1 million/month","provisioned_memory":"360 GB-hrs/month"}},{"free":false,"name":"Pro","description":"Pay-per-use consumption beyond Hobby plan limits","contactSales":false}],"summary":"Free Hobby tier with monthly included usage; Pro tier with usage-based billing","currency":"USD","freeTier":true,"sourceUrl":"https://vercel.com/docs/functions","retrievedAt":"2026-08-01T15:44:05.076Z","billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | commercial |
| pricing.price_level | low | low |
| pricing.transparent | yes | yes |
| release.cadence_days | 136 | - |
| release.history | `[{"url":"https://github.com/openfaas/faas/releases/tag/0.27.14","date":"2026-07-02T09:09:13Z","type":"prerelease","version":"0.27.14"},{"url":"https://github.com/openfaas/faas/releases/tag/0.27.13","date":"2025-08-29T14:24:04Z","type":"stable","version":"0.27.13"},{"url":"https://github.com/openfaas/faas/releases/tag/0.27.12","date":"2024-12-09T09:51:08Z","type":"stable","version":"0.27.12"},{"url":"https://github.com/openfaas/faas/releases/tag/0.27.11","date":"2024-11-29T14:52:05Z","type":"stable","version":"0.27.11"},{"url":"https://github.com/openfaas/faas/releases/tag/0.27.10","date":"2024-11-18T21:47:16Z","type":"stable","version":"0.27.10"}]` | - |
| reliability.sla_pct | - | 99.99 |
| reliability.status_page | - | yes |
| security.disclosure_policy | - | yes |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.iso27001 | - | yes |
| security.pci | - | yes |
| security.scorecard | 4.3 | - |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fopenfaas%2Ffaas&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (Serverless & Edge Platforms)

| Capability | OpenFaaS | Vercel Functions |
|---|:--:|:--:|
| **Core** |  |  |
| Execution substrate | - | - |
| Language / runtime breadth | extensive language support | Node.js, Python, Go, and more |
| **Reach** |  |  |
| Runs at global edge PoPs | - | ✓ |
| **Scale** |  |  |
| Scale to zero | - | ✓ |
| **Performance** |  |  |
| Cold-start profile | - | Low |
| **Limits** |  |  |
| Max execution duration | extended execution timeouts | - |
| **Integration** |  |  |
| Event source breadth | - | HTTP (GET, POST) |
| HTTP endpoint trigger | - | ✓ |
| Cron / scheduled invocations | - | - |
| **State** |  |  |
| Durable state / workflow primitive | - | - |
| **Flexibility** |  |  |
| Bring-your-own runtime / container | ✓ | - |
| **Deployment** |  |  |
| Hosting | Cloud + self-hosted | Cloud only |
| **Ops** |  |  |
| Built-in logs / metrics / tracing | - | ✓ |
| **Extensibility** |  |  |
| CLI + IaC / framework support | - | ✓ |

*Source: Vioscale. Generated 2026-09-01T15:03:04.674Z. "-" = undocumented, not absent.*