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Guides on Claude, GPT, Claude Code and LLM APIs: how to connect them, what they cost and how to pay less.
Claude Code on Windows: setup and common errorsSet up Claude Code on Windows 10 and 11 with your own API key: PowerShell, CMD, settings.json, and fixes for 401, 404 and «sign in to Anthropic».How to cut your Claude Code and Claude API billWhat drives the cost of the Claude API and Claude Code: input, output and cached tokens, model choice. A worked example and five ways to pay less.