AION
Open-source releaseLarge Language Models1 source · May 20, 2026

huggingface/transformers v5.9.0: Release v5.9.0

Command A+ is a Mixture-of-Experts (MoE) language model from Cohere that features a hybrid attention pattern combining sliding window and full attention layers.

Key points

  • The model incorporates both shared and routed experts and supports a very large context window for processing extensive text sequences.
  • HRM-Text is an improved autoregressive language-modeling variant of the Hierarchical Reasoning Model (HRM) that uses a hierarchical recurrent forward pass with two transformer stacks - one for slow, abstract planning (H) and one for fast, detailed computation (L) - reused inside a nested recurrence.
  • The textembeds input for SAM3, EdgeTAM, and SAM3-Lite-Text models now expects full text embeddings instead of just pooler outputs, aligning with other models in the library — users must update their inputs accordingly.
  • 🚨Fix memory leaks caused by lru decorators in vision models (#45922) by @yonigozlan

Sources (1)

  • [1]huggingface/transformers v5.9.0: Release v5.9.0
    GitHub: huggingface/transformers · May 20, 02:12 PM
    Command A+ is a Mixture-of-Experts (MoE) language model from Cohere that features a hybrid attention pattern combining sliding window and full attention layers.
    The model incorporates both shared and routed experts and supports a very large context window for processing extensive text sequences.

Extractive summary: sentences quoted from the sources.