kapynDev Tools

ttok 1.0

ttok 1.0 is a tokenizer tool that now defaults to the GPT‑5/GPT‑6 tokenizer instead of GPT‑4. The release fixes a long‑standing bug and aligns the tool with OpenAI’s latest models, improving token counting accuracy for developers. This update helps avoid mis‑estimates in prompt budgeting and model usage.

Simon Willison·Oct 9, 2026

Opening Kapyn…