Microsoft’s Copilot 3D (https://copilot.microsoft.com/labs/experiments/3d-generations) generates 3D objects from an image.

Good results with contrasting backgrounds (see tests). Export glb format.

Free and seems unlimited.

Wikimedia Commons “Pictures of the Day” sources:

• https://commons.wikimedia.org/wiki/File:Dragonblood_tree_in_Socotra_2.jpg
• https://commons.wikimedia.org/wiki/File:Audi_Sport_quattro_concept.jpg
• https://commons.wikimedia.org/wiki/File:Leopard_(Panthera_pardus_pardus)_Kruger.jpg
• https://commons.wikimedia.org/wiki/File:STS-135_final_flyaround_of_ISS_1.jpg
• https://commons.wikimedia.org/wiki/File:Portas_da_Cidade,_Ponta_Delgada,_isla_de_San_Miguel,_Azores,_Portugal,_2020-07-29,_DD_123-125_HDR.jpg