# Fastly Compute vs Vercel Functions

**Leader by vioscaleAI score:** Vercel Functions

| Attribute | Fastly Compute | Vercel Functions |
|---|---|---|
| **vioscaleAI score** | 54.1 (51% (medium)) | 90.2 (62% (medium)) |
| activity.commits_last_30d | 23 | - |
| adoption.dependent_repos | 65 | - |
| adoption.github_stars | 226 | - |
| adoption.package_downloads_weekly | 462,574 | - |
| content.faq | `[{"answer":"Execute code at the edge using WebAssembly with instant startup times. Includes storage, messaging, and built-in security features for modern application development. It is indexed under Serverless & Edge Platforms.","source":"https://www.fastly.com/pricing","question":"What is Fastly Compute?","confidence":0.6},{"answer":"Fastly Compute is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://www.fastly.com/pricing","question":"Is Fastly Compute free to use?","confidence":0.6},{"answer":"Fastly Compute supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.fastly.com/pricing","question":"What platforms does Fastly Compute support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Fastly Compute, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://www.fastly.com/pricing","question":"Can Fastly Compute be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Fastly Compute. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Fastly Compute not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.fastly.com/trust","question":"What security certifications does Fastly Compute have?","confidence":0.7},{"answer":"Yes. Fastly Compute is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/fastly/js-compute-runtime","question":"Is Fastly Compute open source?","confidence":0.99}]` | `[{"answer":"Build and deploy API routes, webhooks, and request handlers without managing servers. Functions automatically scale with traffic, support multiple programming languages, and include built-in observability. It is indexed under Serverless & Edge Platforms.","source":"https://vercel.com/docs/image-optimization/legacy-pricing","question":"What is Vercel Functions?","confidence":0.6},{"answer":"Vercel Functions offers a free tier, so you can start without paying. Paid plans are also available: Hobby and Pro. Pricing changes often, so verify at source before relying on it.","source":"https://vercel.com/docs/functions","question":"Is Vercel Functions free?","confidence":0.6},{"answer":"Vercel Functions supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://vercel.com/docs/image-optimization/legacy-pricing","question":"What platforms does Vercel Functions support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Vercel Functions, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://vercel.com/docs/image-optimization/legacy-pricing","question":"Can Vercel Functions be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, ISO 27001, HIPAA and GDPR for Vercel Functions. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Vercel Functions not holding them. Always confirm compliance directly before you rely on it.","source":"https://vercel.com/security","question":"What security certifications does Vercel Functions have?","confidence":0.7}]` |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | Fastly Compute is a JavaScript runtime and SDK for building applications that run on Fastly's edge network. It includes privacy enablement solutions like MASQUE Relay and OHTTP Relay for anonymizing user traffic and protecting personally identifiable information. | A serverless functions platform for building and deploying API routes, webhooks, and event handlers. Supports multiple runtimes with built-in observability and local testing via CLI. |
| features.capabilities | `{"hosting":"cloud","languages":"JavaScript, with WebAssembly runtime support","cold_start":"low","cli_and_iac":true,"http_trigger":true,"edge_distributed":true,"runtime_substrate":"wasm","observability_builtin":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 | 5 | - |
| integrations.list | `[{"name":"GitHub Actions","native":true,"category":"ci_cd"},{"name":"Terraform","native":true,"category":"iac"},{"name":"Datadog","native":true,"category":"observability"},{"name":"Splunk","native":true,"category":"observability"},{"name":"S3","native":true,"category":"storage"}]` | - |
| language.primary | JavaScript | - |
| license.spdx | Apache-2.0 | - |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Free","description":"Usage-based with no cost for basic usage","contactSales":false},{"free":false,"name":"Growth","description":"Usage-based with volume discounts","contactSales":false},{"free":false,"name":"Enterprise","description":"Custom pricing and support","contactSales":true}],"freeTier":true,"sourceUrl":"https://www.fastly.com/pricing","retrievedAt":"2026-09-10T21:05:10.652Z"}` | `{"type":"hybrid","plans":[{"free":true,"name":"Hobby","summary":"Free","features":["12K function invocations/month","Image optimization","Speed Insights","Web Analytics"],"description":"Free tier with limited included resources","contactSales":false,"includedLimits":{"function_invocations":"12k/mo","image_transformations":"5k/mo","speed_insights_events":"10k"}},{"free":false,"name":"Pro","summary":"Monthly. 1M included invocations. Usage-based overages.","features":["1M function invocations included","Usage-based pricing for overages","Observability Plus option","Multiple runtime support"],"commitment":"monthly","components":[{"per":{"qty":1,"unit":"M invocations"},"kind":"metered","amount":2.75,"currency":"USD"},{"per":{"qty":1,"unit":"M events"},"kind":"metered","amount":1.2,"currency":"USD"}],"description":"Monthly subscription with high invocation limit and usage-based overages","contactSales":false,"includedLimits":{"function_invocations":"1M/mo"}},{"free":false,"name":"Enterprise","summary":"Custom pricing","description":"Custom pricing and capabilities","contactSales":true}],"addOns":[{"name":"Observability Plus","components":[{"per":{"qty":1,"unit":"M events"},"kind":"metered","amount":1.2,"currency":"USD"}]},{"name":"Web Analytics Plus"},{"name":"Speed Insights","components":[{"per":{"qty":10000,"unit":"events"},"kind":"metered","amount":0.65,"currency":"USD"}]}],"summary":"Hobby free tier. Pro monthly subscription with 1M invocations included. Usage-based pricing for overages and add-on services.","currency":"USD","freeTier":true,"sourceUrl":"https://vercel.com/docs/pricing","retrievedAt":"2026-10-05T11:05:59.418Z","startingPrice":{"unit":"M events","amount":1.2,"currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | low | low |
| pricing.starting_price | - | `{"amount":1.2,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| release.cadence_days | 6 | - |
| release.history | `[{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v4.0.0","date":"2026-10-06T17:47:49Z","type":"stable","version":"v4.0.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.46.0","date":"2026-09-14T17:38:01Z","type":"stable","version":"v3.46.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.45.1","date":"2026-09-07T18:39:27Z","type":"stable","version":"v3.45.1"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.45.0","date":"2026-09-04T00:23:51Z","type":"stable","version":"v3.45.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.44.3","date":"2026-07-31T20:21:39Z","type":"stable","version":"v3.44.3"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.44.2","date":"2026-07-28T21:17:39Z","type":"stable","version":"v3.44.2"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.44.1","date":"2026-07-28T20:55:12Z","type":"stable","version":"v3.44.1"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.44.0","date":"2026-07-27T22:13:44Z","type":"stable","version":"v3.44.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.43.2","date":"2026-07-23T18:33:14Z","type":"stable","version":"v3.43.2"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.43.1","date":"2026-06-17T22:07:21Z","type":"stable","version":"v3.43.1"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.43.0","date":"2026-06-16T17:51:23Z","type":"stable","version":"v3.43.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.42.1","date":"2026-05-18T21:22:05Z","type":"stable","version":"v3.42.1"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.42.0","date":"2026-05-11T20:59:14Z","type":"stable","version":"v3.42.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.41.2","date":"2026-05-04T21:54:38Z","type":"stable","version":"v3.41.2"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.41.1","date":"2026-04-10T09:11:25Z","type":"stable","version":"v3.41.1"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.41.0","date":"2026-04-08T08:42:33Z","type":"stable","version":"v3.41.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.40.1","date":"2026-02-24T11:44:27Z","type":"stable","version":"v3.40.1"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.40.0","date":"2026-02-17T21:02:48Z","type":"stable","version":"v3.40.0"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.39.4","date":"2026-02-13T09:16:48Z","type":"stable","version":"v3.39.4"},{"url":"https://github.com/fastly/js-compute-runtime/releases/tag/v3.39.3","date":"2026-02-12T23:09:29Z","type":"stable","version":"v3.39.3"}]` | - |
| reliability.sla_pct | - | 99.99 |
| reliability.status_page | yes | yes |
| security.disclosure_policy | - | yes |
| security.gdpr | yes | yes |
| security.hipaa | - | yes |
| security.iso27001 | - | yes |
| security.pci | - | yes |
| security.soc2 | - | yes |
| security.trust_center | https://www.fastly.com/security-research | https://vercel.com/docs/security |
| security.vulnerabilities | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40fastly%2Fjs-compute&per_page=100","last_12m":0,"max_severity":"HIGH"}` | - |

## Capabilities (Serverless & Edge Platforms)

| Capability | Fastly Compute | Vercel Functions |
|---|:--:|:--:|
| **Core** |  |  |
| Execution substrate | WASM | - |
| Language / runtime breadth | JavaScript, with WebAssembly runtime support | Node.js, Python, Go, and more |
| **Reach** |  |  |
| Runs at global edge PoPs | ✓ | ✓ |
| **Scale** |  |  |
| Scale to zero | - | ✓ |
| **Performance** |  |  |
| Cold-start profile | Low | Low |
| **Limits** |  |  |
| Max execution duration | - | - |
| **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 only | Cloud only |
| **Ops** |  |  |
| Built-in logs / metrics / tracing | ✓ | ✓ |
| **Extensibility** |  |  |
| CLI + IaC / framework support | ✓ | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T20:50:08.795Z. "-" = undocumented, not absent.*