Mistral AI launched a public preview of Mistral Large 4, a 1 trillion-parameter natively multimodal model with 52 billion active parameters.
Why it matters: The post gives the parameter layout, benchmark scores and the weight-release timing, so readers can judge where an open-weight European model now sits.
Ai2 open-sourced AstaBrief 8B, a model built on Qwen3-8B that turns a research question and retrieved literature excerpts into a cited report.
Why it matters: The post gives the training recipe and filtering lessons behind an open-weights scientific report model, useful for anyone building grounded generation.
H Company released Holo4, a new series of generalist computer-use agent models in two sizes.
Why it matters: The post gives the two model sizes, the interfaces they cover and the OSWorld 2.0 numbers, so readers can weigh a cheaper open-weight computer-use agent against closed frontier models.