Not really the plan at the moment! Composer and Grok are two different weight classes of models, and we’re continuing to invest in the next version of Composer!
From our announcement of Grok 4.5:
Grok 4.5 and Composer 2.5 are two different model weight classes, and we’re excited to support both sizes and weights. Composer 2.5 will remain offered, and we will release new models of this size going forward.