Comment by CamperBob2

GLM 5.3 not only got that part right, but animated it: https://crimson-jeri-74.tiiny.site/

To be fair I have a feeling that if you added 'animated' to the SVG request, the output quality from many other models would improve, just because of the extra chain-of-thought work needed to fulfill the more complex request. IMHO the animation requirement should be added to the canonical pelican prompt.