Collins is set to join former QB teammate DJ Uiagalelei next year.
Collins also visited Clemson in the fall along with another contender in Ohio State.
Clemson is in line to have a signee from California for three-straight classes after not having one before Joseph Ngata since 1991.
Clemson moved to No. 5 in 247Sports' 2021 team rankings with its six-man class now.