Hasty Briefsbeta

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Exploring Gymflation with AI

17 hours ago
  • Project investigates 'gymflation' by analyzing deadlift PRs on YouTube over time.
  • Uses YouTube API (via httr2) to collect video data from 2015 to 2025.
  • Employs a local LLM (Ministral 3B) via Ellmer to extract weight, unit, and reps from video metadata.
  • Improves extraction accuracy (92% on test set) using in-context learning with few-shot examples.
  • Applies vision-language models (Gemini, MiniMax, Qwen) to classify lifter gender from thumbnails, achieving ~80% accuracy.
  • Finds no evidence of gymflation: average deadlift weight has not increased over time; heavy lifts may even be decreasing.
  • Highlights practical tips: caching API requests, using structured outputs, parallel processing, cost management, and manual annotation.