Meta's Open Multimodal Push, ChatGPT Business Gets Premium Seats, and Agent Routing Benchmarks

Meta shipped Muse Glimmer — local, agentic, multimodal, open-source — which is the clearest signal yet that the open-weights camp is making a real run at the closed-model value prop. Meanwhile OpenAI added a "Premium seats" tier to ChatGPT Business, which is either smart upsell design or the beginning of feature fragmentation, and LangChain published benchmark data showing 93% of agent turns don't need a frontier model — which changes the cost math on every agent product you're building.