Do I need to understand neural networks to use LLMs well?
No, not to use them as an API. Prompt engineering and agent design are separable skills from understanding backpropagation. But knowing that a transformer is layers of self-attention explains why LLMs have context limits, why longer prompts cost more, and why fine-tuning changes weights while prompting doesn't — all things you'll hit in production.
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20 AI Concepts Every Developer Should Actually UnderstandA layered glossary of the 20 AI concepts developers keep running into — grouped by dependency, not alphabetized, so each term builds on the one before it.
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