This gundam paper model is GN-001 Gundam Exia (aka Gundam Exia, Exia, Gundam Seven Swords), the close combat Gundam featured in both seasons of Mobile Suit Gundam 00, the papercraft created by Tosan Aji. The scale of the paper Exia is in 1:144. For more information please click here. There is also a GN-0000 00 Gundam papercraft on the site.
You can download this gundam paper model here: GN-001 Gundam Exia (Simple Version) Free Paper Model Download