since late 2024/early 2025 it now is the case, especially with a reasoning model like Sonnet 3.7, DeepSeek-r1, o3, Gemini 2.5, etc., and especially if you upload the textbook, slides, etc alongside the homework to be cheated on.
most normal-difficulty undergraduate assignments are now doable reliably by AI with little to no human oversight. this includes both programming and mathematical problem sets.
for harder problem sets that require some insight, or very unstructured larger-scale programming projects, it wouldn't work so reliably.
but easier homework assignments serve a valid purpose to check understanding, and now they are no longer viable.