PastAGI – AI for Builders: Guides, Tool Reviews and Serving-Math Audits
PastAGI is an AI publication for builders: practical guides, honest tool reviews, and engineering deep dives where the math is shown. Recent work includes an audit of GPT-6 Astra pricing at $6 an hour, a review of the TontaubeV1 2.9B char-level TTS model with full serving math, an analysis of why custom AI inference chips are eating the GPU market, and a guide to how AI agents leak sensitive data and how to stop it. Other series cover prompt dependency graphs that shrink your retest set and the end of AI reasoning transparency when chain of thought becomes a summary. Anti-hype analysis, verifiable numbers, real use cases for engineering teams.