Claude in 2025: a complete guide from setup to Opus 5.5 tips
rubenhassid · x · 2026-10-21
Prompt engineer Ruben Hassid published a catch-up guide to Claude in 2025, collecting his tutorials: initial setup for people who gave up on Claude, prompt engineering beyond 'make this better', using Opus 5.5 (he runs it on 'medium' only), AI privacy caveats, switching between ChatGPT and Claude without losing context, legal use cases, Anthropic's official Claude certification, and rate-limit hacks.
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