Andrej Karpathy released a 200-line pure-Python implementation of GPT on February 12, 2026, designed to help developers understand large language models from first principles. The microgpt project inc…
Developer dmatth1 released quicktok, a fast exact BPE tokenizer written in C++ that runs 2–3.5× faster than bpe-openai and 4–11× faster than tiktoken on CPU. The tokenizer is byte-identical to tiktoke…
A tutorial demonstrates streaming, filtering, deduplication, tokenization, and analytics on the FineWeb dataset using Python, reproducing quality-filtering pipelines and MinHash-based near-duplicate d…
A developer explains that large language models never read text directly; instead, they process tokenized integers via Byte Pair Encoding. The post details how tokens—chunks of text like 'Hello' or ' …
A developer has created a 60-second audit script to measure the "MCP server token tax"—the context budget consumed by tool definitions before an agent performs any useful work. Running the script agai…
OpenAI has released tiktoken, an open-source BPE tokenizer library that powers its GPT model family including GPT-3.5, GPT-4, and GPT-4o. The Rust-based tokenizer converts text strings into token ID s…
A developer reverse-engineered their own Claude Code logs to reveal that 64% of the $3,371 monthly bill at Opus 4.7 list rates goes to re-reading the same context every turn, not generating new conten…
A developer has outlined a method for building token-efficient web scraping pipelines for AI agents using n8n, which strips heavy HTML DOM structures into clean, semantic Markdown before inference. By…