Blender's Monster Under The Bed demo scene as a Gaussian splat, about 990,000 splats. SplatPilot rendered it in Cycles and trained the splat on an RTX 4070 in 18 minutes.
Scene: Monster Under The Bed by Metin Seven, concept art by Blake Stevenson (CC BY). Made with SplatPilot, an extension for Blender 5.3: https://splatpilot.com · Get it on Superhive: https://superhivemarket.com/products/splatpilot