They have also been charged with conspiracy to rape.
They were remanded by an Asokwa District court and will re-appear on January 3, 2018.
The prosecutor told the Asokwa juvenile Court on Wednesday, 27 December that investigations have not been concluded.
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Aside from rape, they have also been charged with conspiracy to rape.
The boys were among seven teenagers who were seen on video gang-raping another teenager at Bantama in Kumasi.
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The seven suspects attend either senior high or junior high schools at Bantama.
Their names and those of their schools are being withheld for security reasons.