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Open-source releaseLarge Language Models · Multimodal Models1 source · Aug 26, 2026

huggingface/transformers v5.16.1: Release v5.16.1

This is a special release as we include GLM! (and a few small fixes)

Key points

  • GLM-5.3-Flash, the first natively multimodal model in the GLM-5 series.
  • GLM-5.3-Flash starts from a newly trained base model, with its architecture and training recipe redesigned around capability and efficiency.
  • For the first time in the GLM series, we introduce a hybrid architecture combining sparse and linear attention, sharply reducing long-context serving costs while preserving precise long-context capabilities.
  • Together with our latest 30T-token multimodal pre-training corpus, these changes enable GLM-5.3-Flash to deliver more intelligence with less compute.

Sources (1)

  • [1]huggingface/transformers v5.16.1: Release v5.16.1
    GitHub: huggingface/transformers · Aug 26, 02:50 PM
    This is a special release as we include GLM! (and a few small fixes)
    GLM-5.3-Flash, the first **natively multimodal model** in the GLM-5 series.

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