The official source reports this update: 2026.4.1. Summary of major features and improvements Improved GroupQueryAttention support for large language models served through the ONNX frontend: Added causal-attention and partial rotary-embedding support to GroupQueryAttention , broadening coverage of modern LLMs. Extended MatMulNBits with bfloat16 support and reordered weight/scale/zero-point layouts for correct decoding of more quantized models.
Canonical AI event
OpenVINO toolkit 2026.4.1 adds causal-attention support for large language models.
OpenVINO 2026.4.1 fixes GPU issues with remote output tensors and GRU models. It also addresses NPU crashes on specific Intel processors.
1 Oct 20261 verified claims1 sources1 observations
This official update documents a development concerning 2026.4.1. Its practical significance depends on the scope and evidence stated by the source.
Read the official source update and verify its stated scope, evidence and timing before acting on it.
Connected knowledge
Entities affected by this event
Evidence trail
Sources behind the event
Editorial presentation
Open story