Questions: How far can you go with the free tiers? Do I need to invest much in order to develop a good feeling of what is possible and what is not? Also, if e

Questions: How far can you go with the free tiers? Do I need to invest much in order to develop a good feeling of what is possible and what is not? Also, if experience matters, how to help junior developers get the coding experience needed to master LLMs? While, as TFA says, this might not replace developers, it does seem like it will make things harder for unexperienced people. (Edit: typos)