🔧 From 3-Minute Cold Starts to ~20 Seconds: Whisper on AWS Lambda + EFS for OpenClaw

Part 3 of my series on building a low-cost personal AI stack on AWS.
Part 1 — Squeezing my $1k/month API bill to $20/month with AWS Credits
Part 2 — Drop-in Perplexity Sonar replacement with AWS Bedrock Nova Grounding





TL;DR


I built a self-hosted speech-to-text API on AWS Lambda using faster-whisper. After trying Amazon Transcribe,...