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325 AI tools later... these are the ones that survived. ChatGPT, Claude, Gemini, and Perplexity for thinking. LangGraph and CrewAI for agents. Make, Zapier, and n8n for automation. Cursor, Claude Code, and Codex for building. Pinecone and LlamaIndex for RAG. And remember... you don’t need all of them. Pick one problem. Choose the tool built for it. Use it for 30 days. Save this before downloading another shiny AI app. ➡️ Follow @itsaiguide for AI tools you can actually use.