Board Thread:Naruto Discussions/@comment-26508646-20150704031517/@comment-5407586-20150711105700

While Naruto only has Kurama (along with fragments of Shukaku and Gyūki) actually sealed in his body, while the other six tailed beasts just gave him portions of their chakras, he was still called a jinchūriki. The tailed beasts' chakra is supposed to be everlasting, since Hagoromo stated that Naruto was to be their "meeting place", and that would be possible only if their chakras were to be permanently inside his body, though their quantities would definitely not be comparable to Kurama's.

Obito was the Ten-Tails' jinchūriki, not the nine tailed beasts'.

The Six Paths Sage Mode doesn't require the tailed beasts' chakra, just the Six Paths Sage Chakra.