Small API
2 vCPU, 4GB RAM, 24/7
Sealos 69% lower
As AI technology advances, choosing the right platform is crucial for your team's speed, governance, and long-term success. Both Sealos and Railway have their strengths. The sections below compare them across developer experience, scalability, and total cost of ownership.
As AI technologies evolve, delivering and scaling applications has become essential for powering modern businesses, from AI startups to large-scale enterprises. There are various solutions available, including comprehensive cloud operating systems, managed Platform-as-a-Service (PaaS), and traditional IaaS. Selecting the right platform is crucial for your team's velocity, governance, and long-term success.
Sealos and Railway both bring unique strengths to application delivery, each with its own capabilities and limitations. The best choice depends on your specific use case and requirements. In the following sections, we'll compare both platforms regarding developer experience, scalability, and total cost of ownership, helping you determine the most suitable option for your needs—even if it's not us.
| Infrastructure | Standard Kubernetes | Proprietary PaaS |
| Source Available | 100% source-available (Apache 2.0) | |
| Deployment Options | Cloud Self-hosted Hybrid | Cloud only BYO Cloud: Enterprise |
| Free Trial | 7 days, 4 vCPU + 4GB (no credit card) | 30 days, $5 credit |
| Max vCPU per Service | Plan-based (4-64 vCPU) | Hobby: 8, Pro: 32 |
| Max RAM per Service | Plan-based (4-128 GB) | Hobby: 8GB, Pro: 32GB |
| Custom Domains | Unlimited | Hobby: 2, Pro: 20 |
| Replicas per Service | Unlimited (within quota) | Hobby: 5, Pro: 50 |
| Cron Jobs | Unlimited | Hobby: 50, Pro: 100 |
| Log Retention | Configurable | Free: 3d, Hobby: 7d, Pro: 30d |
| Scale-to-Zero | (saves on idle) | |
| App Marketplace |
Cost evidence
Estimates use the listed average CPU and RAM for a 30-day month. Storage and egress are excluded unless a platform note says otherwise.
Small API
2 vCPU, 4GB RAM, 24/7
Medium App
8 vCPU, 16GB RAM, 24/7
Production Stack
16 vCPU, 32GB RAM, 24/7
2 vCPU, 4GB RAM, 24/7
Sealos 69% lower
8 vCPU, 16GB RAM, 24/7
Sealos 60% lower
16 vCPU, 32GB RAM, 24/7
Sealos 20% lower
Plan prices include the resource package listed on the Sealos pricing page.
Estimate uses $20/vCPU-month and $10/GB-month at the listed average usage. Volume and egress are excluded from these three examples. Verified 2026-07-28.
Sealos is an AI-native Cloud Operating System built on Kubernetes that unifies the entire application lifecycle, from development in Cloud Development Environments (CDEs) to production deployment and management. It is perfect for building and scaling modern AI applications, SaaS platforms, managed databases (MySQL, PostgreSQL, Redis, MongoDB) and complex microservice architectures. The platform is 100% source-available, and for production you can choose either a fully managed cloud service or self-host on your own infrastructure.
Railway is a managed Platform-as-a-Service (PaaS) that simplifies application deployment through Git integration and usage-based billing. It automates builds and deploys for web services, background workers, Cron Jobs, and databases. Railway provides a fast path from code to production with automatic scaling (including scale-to-zero), abstracting away infrastructure complexity for individual developers and small teams.
Predictable costs for 24/7 production workloads
Cloud Development Environment (CDE) for consistent dev/prod environments
Self-hosting option for data sovereignty or compliance (100% source-available)
Kubernetes-native control with full API access
100+ ready-to-deploy apps from the marketplace
Enterprise multi-tenancy with granular RBAC and resource quotas
Have intermittent workloads that benefit from scale-to-zero billing
Prefer usage-based billing for unpredictable or low traffic patterns
Need the fastest path from Git to URL for quick prototypes
Don't need Kubernetes-level infrastructure control
Run mostly stateless, low-traffic hobby projects near Railway's $5 Hobby minimum
Want Preview Environments for pull request testing
Everything you need to know about Sealos and Railway.