Spot AWS cost anomalies before they wreck your budget

Short summary

AWS cost spikes follow four predictable patterns—service spike, region drift, usage-type creep, and 30% delta—detectable via free baseline tools or real-time commercial platforms with auto-remediation. A four-signal framework separates signal from noise; teams using streaming detection catch anomalies within minutes, preventing $14K weekend incidents. Use a runbook: tag severity, quarantine resources, open P2 incidents for >$1K/day spend, and run weekly longitudinal trend checks.

• •AWS Cost Anomaly Detection (free) detects with 24-48 hour delay; commercial tools (CloudZero, Vantage, ZopNight, nOps) offer real-time detection with auto-remediation
• •Four-signal framework: service spike, region drift, usage-type creep, and 30% cost delta threshold filter noise from real incidents
• •Incident runbook: tag severity, quarantine resources, open P2-level incidents for >$1K/day spend, establish weekly trend checks

Generated with AI, which can make mistakes.