Meta Platforms is stepping up its AI rollout by releasing Muse Glimmer weights (stored model parameters) and saying Muse Spark weights will follow later this year. The expansion is coming with a profitability trade-off: heavy AI investment reduced the company's adjusted operating margin to 36.8% from 43% year over year in Q2, underscoring how Meta's push to broaden its AI offerings is weighing on near-term margins.