Railway has become the default recommendation for deploying side projects. Push to GitHub, get a URL. But is it actually good for AI apps? After deploying multiple LLM-powered applications on Railway, here’s my honest take.
What Railway gets right
Deploy experience is unmatched
Connect your GitHub repo, Railway detects your stack, and deploys. No Dockerfile needed (though it supports them). No YAML. No build configuration. For a FastAPI + Postgres app, you go from code to production URL in under 5 minutes.
# That's it. Push to GitHub, Railway deploys.
git push origin main
One-click databases
Need Postgres? Click “New” > “Database” > “PostgreSQL.” Railway creates it, sets the DATABASE_URL environment variable, and connects it to your service. Same for Redis, MySQL, and MongoDB.
For AI apps that need to store conversation history, cache LLM responses, or manage user sessions, this is invaluable.
Preview environments
Every pull request gets its own deployment with a unique URL. Test your prompt changes, new model integrations, or UI updates before merging. This is critical for AI apps where a prompt change can break everything.
Environment variables done right
Set secrets in the dashboard, reference them in code. Railway injects them at runtime. No .env files in git, no secret management headaches. See our password managers guide for additional security.
What Railway gets wrong
Usage-based pricing is unpredictable
Railway charges by CPU time, memory, and bandwidth. For AI apps, this is tricky because:
- LLM API calls keep your server waiting (CPU idle but memory allocated)
- Streaming responses hold connections open longer
- Spiky traffic from a Reddit post can blow your budget
A typical AI app costs $5-15/month, but I’ve seen bills hit $40+ during traffic spikes. Cloudways ($14/mo flat) or Hetzner (€4.50/mo) are more predictable.
No SSH access
You can’t SSH into a Railway container. If you need to debug a production issue, install a system package, or run Ollama locally, you’re stuck. Railway is containers, not servers.
For AI apps that need system-level access, Cloudways or a VPS is better.
10-minute build timeout (free tier)
Complex Python dependencies (numpy, pandas, torch) can exceed the free tier build timeout. The Pro plan ($5/mo) extends this, but it’s a gotcha for AI projects with heavy dependencies.
No GPU
Railway doesn’t offer GPU instances. If your AI app needs local inference (not just API calls), you need RunPod, Vultr GPU, or a dedicated server.
Pricing breakdown
| Plan | Base cost | Includes | Overage |
|---|---|---|---|
| Hobby | $5/mo | $5 usage credit | Pay per use |
| Pro | $20/mo | $20 usage credit | Pay per use |
| Team | $20/user/mo | $20 usage credit | Pay per use |
Typical AI app costs:
| App type | Monthly cost |
|---|---|
| Simple API (low traffic) | $5-8 |
| API + Postgres (moderate) | $10-20 |
| API + Postgres + Redis (busy) | $20-40 |
| Multiple services | $30-60 |
Who should use Railway
Use Railway if:
- You want the fastest deploy experience
- Your app is a standard web service (API, frontend, database)
- You’re a solo developer or small team
- You don’t need SSH or system-level access
- You’re okay with usage-based pricing
Don’t use Railway if:
- You need predictable monthly costs → Cloudways
- You need SSH access → Cloudways or Hetzner
- You need GPU → RunPod or Vultr
- You want the cheapest option → Hetzner (€4.50/mo)
The verdict
Railway is the best PaaS for developer experience. Nothing else matches the speed of going from code to production. For AI apps that call LLM APIs and serve results, it’s excellent. For anything needing system access, GPU, or predictable pricing, look elsewhere.
Rating: 8/10 for AI apps. Loses points for unpredictable pricing and no SSH.
Try Railway — $5/mo gets you started with a Postgres database included.
Related: Deploy AI App on Railway · Cloudways vs Railway vs Hetzner · Best Managed Cloud Hosting · Best Hosting for AI Side Projects · AI App Deployment Checklist