[Grimblewald]

mine is seeing if they can implement brown et al (2007) image stitching algorithm. It's old, plenty of code examples exist in training data, the math at this stage is quite well developed, but funnily enough, no decent real open source examples of this exist, especially anything that gets close to Microsoft research's demo tool, the image composite editor (ICE). Even if you heavily constrain the requirements, i.e. planar motion only, only using multi band blending and gain correction, not a single model currently manages to pull this off. Few even have something working at the start. Many other things they excel at, even look downright competent, but in all those cases it simply turns out decent open source examples of the implementation exist on git-hub, usually a touch better than the LLM version. I have yet to see a LLM produce good code for something even moderately complex that I couldn't then find a copy of online.