Transformers 5.15.0 and Meta Muse Glimmer Lead Latest AI Releases

A review of eleven recent AI and agent updates found only two meeting a strict 36-hour recency threshold. Meta Muse Glimmer is a roughly 30-billion-parameter multimodal model released under Apache 2.0, designed for agentic workloads with 4-bit weights reportedly under 20 GB. Hugging Face's Transformers 5.15.0 adds support for Muse Glimmer, FSDP plans across 94 causal-LM classes, batched Omni audio generation, and Tekken tokenizer support. The update also introduces notable breaking changes, including opt-in kernels for linear-attention families and revised cache-cropping behavior using negative offsets. Six additional tools — including SGLang 0.5.17, Anthropic Python SDK 0.121.0, and Pydantic AI 2.27.0 — are flagged for a broader 72-hour watchlist pending further verification.