SST vs Vercel: The Serverless Framework vs. The Deployment Platform
Comparing SST's infrastructure-as-code approach with Vercel's developer experience-first platform for deploying web applications.
SST
SST gives you full control over AWS infrastructure with a developer-friendly workflow, while Vercel locks you into their platform with less flexibility for complex backend needs.
What They Actually Do
SST is an open-source framework for building and deploying serverless applications on AWS using Infrastructure as Code (IaC). Vercel is a cloud platform for deploying frontend applications and serverless functions with a focus on developer experience and performance.
Key Features
SST: Live Lambda development, AWS CDK integration, local debugging, built-in monitoring with Console, support for databases (DynamoDB, RDS), queues, and cron jobs. Vercel: Automatic HTTPS, edge network, preview deployments, analytics, image optimization, and serverless functions with minimal configuration.
Pricing Breakdown
SST: Free framework; you pay for AWS resources used (e.g., Lambda, API Gateway, DynamoDB). Vercel: Free tier for hobby projects; Pro starts at $20/month per user for team features; Enterprise pricing custom; you pay for serverless function execution, bandwidth, and additional features.
Use Cases
SST: Full-stack applications with complex backend logic, microservices, data processing pipelines, and when you need fine-grained control over AWS services. Vercel: Static sites, Jamstack applications, marketing pages, blogs, and simple APIs where you want zero-config deployment.
Gotchas
SST: Requires AWS knowledge; can get complex with large projects; debugging distributed systems is challenging. Vercel: Vendor lock-in; limited to 10-second timeout for serverless functions on Pro plan; no native database or queue services; cold starts can affect performance.
Integration & Ecosystem
SST: Integrates with AWS services natively, supports multiple languages (Node.js, Python, Go), and works with any frontend framework. Vercel: Optimized for Next.js, but supports React, Vue, Svelte, etc.; limited backend integrations compared to AWS.
Quick Comparison
| Factor | sst | vercel |
|---|---|---|
| Infrastructure Control | Full control via AWS CDK | Limited to Vercel's platform |
| Deployment Speed | Fast with live Lambda dev | Instant with edge network |
| Pricing Transparency | Pay-as-you-go AWS costs | Tiered plans with usage limits |
| Backend Capabilities | Full AWS services (DBs, queues, etc.) | Basic serverless functions only |
| Developer Experience | Good with local debugging | Excellent with zero-config setup |
| Vendor Lock-in | Minimal (AWS is standard) | High (proprietary platform) |
| Scalability | Unlimited via AWS | High but platform-dependent |
| Learning Curve | Steep (requires AWS knowledge) | Low (beginner-friendly) |
The Verdict
Use sst if: You're building a complex full-stack app, need control over infrastructure, or plan to scale beyond simple serverless functions.
Use vercel if: You're deploying a static site or simple Jamstack app, want the easiest possible setup, or are heavily invested in Next.js.
Consider: SST for backend-heavy projects, Vercel for frontend-focused work. If you hate AWS, avoid SST; if you fear lock-in, avoid Vercel.
SST gives you full control over AWS infrastructure with a developer-friendly workflow, while Vercel locks you into their platform with less flexibility for complex backend needs.
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