Which currently famous free large language models (LLMs) are most helpful in learning and practicing analyzing the complexity of written functions/methods?

Problems
1

If I am unsure of or even have no idea of how to analyze the complexity (TC and SC) of the function/method I have written (that has resulted in AC or TLE verdicts), then before trying hard to ask real humans anywhere (online):

By asking which currently famous free large language models (LLMs) can they most possibly always: generate the correct complexity analysis, or generate sufficiently high-quality information to let me be sure of or have some idea of approaches to analyze? :thinking:

ChatGPT, Gemini, Claude, LLaMA (via HuggingChat), and phind? :hugs: