How I Deployed an AI Agent Swarm on Railway (and Why It Actually Works)

Cost and Scale

Railway Costs

• Container Size: 512MB RAM container with a 1GB persistent volume.
• Compute Cost: Approximately $0.000463/GB-hour for compute, which translates to roughly:
  • $3–4/month per agent if running continuously (24/7).

Language Model API Costs

• Claude Sonnet costs approximately $3/million input tokens and $15/million output tokens.
• Typical Agent Usage: A few cents per day for moderate use.

Total Cost Per Agent

• Monthly Estimate: ~$10–15/month (including both Railway compute and LLM API costs).

Scaling Considerations

For 10 Agents:

• Compute Costs: $30–40/month.
• LLM Costs: ~$30–60/month for moderate use.

For 100 Agents:

• Compute Costs: $300–400/month.
• LLM Costs: ~$300–600/month for moderate use.

Deployment and Maintenance

Deploying a New Agent

Read the full article at Towards AI - Medium

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