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Rust Programming Language: A Beginner-Friendly Guide With Real Examples (and Why Anthropic Moved Its API to Rust)
Anthropic recently moved Claude's Messages API from Python to Rust and reported roughly 40% to 50% less CPU use. This beginner-friendly guide explains the Rust programming language from the ground up, with every example compiled and run: ownership, borrowing, Option and Result, traits, iterators, threads, tests and a small JSON API. It also includes an honest Python vs Rust comparison with a real benchmark.
19 min read