Matt Maher

• Hosted a video comparing Anthropic’s Claude Opus 4.5 and OpenAI’s ChatGPT 5.2 using a massive “One-Shot Build” benchmark for a fictional Showbiz app.
• The experiment utilized an “Impossible” PRD requiring the processing of complex documentation.
• Video: YouTube: iUzrE3-FHgA

Backlink: 2026 04 14 Compare of Claude Opus 45 vs ChatGPT 52 Matt Maher

Source Notes

• 2026-04-23: https://www.youtube.com/watch?v=iUzrE3-FHgA Summary of the video comparing OpenAI’s GPT-5.2 models against Anthropic’s Claude Opus 4.5 using a massive, complex “One-Shot Build” benchmark.