“CQK Is The First Unused TLA § Effective GPT-4 Programming”, Gwern2023-09-29 (Codex)⁠:

Curious what the first ‘unused’ alphabetic acronym is, I have GPT-4 write a script to check English Wikipedia. After three bugs, the first unused one turns out as of 2023-09-29 to be the three-letter acronym ‘CQK’, with another 2.6k TLA unused, and 393k four-letter acronyms unused. Exploratory analysis suggests alphabetical order effects as well as letter-frequency.

Reports of GPT-4 coding utility vary widely. I’ve found it useful, so these sections cover my tips on using it as of November 2023.

I also include a list of example uses I’ve made besides this TLA page’s code.

• Used Criteria
• Script
• Effective GPT-4 Programming
  • System Prompt
  • Inner Monologue
  • Case Studies
  • Acronym Generation
  • String Munging
    • Blind Spot
  • Results
    • Checking
    • Python
    • Patterns
      • Sparsity
      • Letter Frequency Effect
      • Order & Letter-Frequency Effects
      • Further Work
• Conclusion
• See Also
• External Links
• Appendix
  • Unused Numerical Acronyms