Sentient Items with class levels

[Kraven_Redcloak]

Is it possible for sentient items to have class levels? I was reading about Balimar and Balio while looking through the Harrowing earlier and got an idea for a unique NPC that was sentient sword with a few levels in summoner.

I figure after living so long this particular weapon could have learned how to summon and conjured an eidolon to double as it's wielder while it travels around. Barring that the weapon have had levels in summoner programed into it upon creation or be possessed by the spirit of it's original wielder which could attribute to it's unique abilities.

Opinions please.

[wraithstrike]

Any magic item can be made. The specifics are up to the GM though.

[Jak the Looney Alchemist]

Cool concept and as far as I understand the game mechanics to work there is no reason why it couldn't happen although I do not find provisions for the creation of sentient items with class levels. It wouldn't be too hard to work some up though I would imagine as long as you're talking about making it an NPC as opposed to letting a PC try this idea.

[WhipShire]

Weapons of Legacy 3.5 book might be of some help or Legendary Weapons/items PDF on paizo.

WoL for dummies

Legendary I: Legendary Blades