As of right now you can jailbreak any device that is running iOS 6.1 regardless of whether or not it has an A6, A5X, A5, or A4 chip. That’s right, you can now perform an untethered jailbreak on your iPhone 5 running iOS 6.1. The Evad3rs dev team released the jailbreak today and it can be downloaded here: http://www.evasi0n.com/ .
The claims of a 5 minute Jailbreak were consistent with my results on an iPhone 5.
Always be sure to backup your device before attempting any form of jailbreak.
They also advise to disable the lock code as it can cause issues.
— evad3rs (@evad3rs) February 4, 2013