Do AI engineers always train large language models from scratch?
No. Many build applications around existing models, improve retrieval and prompts, evaluate outputs, and operate services. Training large models is only one specialization.
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More FAQs in What skills are required to become an AI engineer?
Begin with probability, basic statistics, vectors, matrices, and derivatives while building small projects. Learn deeper mathematics when a project exposes a concept you need to understand.
A focused project should solve a clear problem, use realistic examples, include meaningful evaluation, and explain limitations. These details show how you reason about quality.
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