Paper Instruments 发布开源模型 Ultramarine 1 Flash，专为文档密集型工作设计
Paper Instruments 拿 GLM-5.3 Flash 做后训练，出了个专门写 Excel、PPT 和备忘录的开源模型，成本只有 Claude 的几十分之一，做咨询和法律文档的可以看看。
Paper Instruments 发布开源模型 Ultramarine 1 Flash，面向银行、律所和咨询公司的文档密集型工作负载。该模型基于 GLM-5.3 Flash 做后训练，可生成 Excel 模型、幻灯片或 Word 备忘录，每项任务成本仅几美分。在其内部基准上，它以 0.13 美元的单任务成本得到 59.3 分，而 Claude Fable 5 需 8.19 美元才得到 57.8 分。训练任务按独立评分标准（rubric）逐项打分，以适配尽调备忘录、董事会演示这类没有唯一正确答案的交付物。
Paper Instruments has released Ultramarine 1 Flash, its new open model made for document-heavy workloads of banks, law firms, and consultancies.
The company states the model can deliver Excel models, slide decks, or Word memos for cents per task.
> The model is a post-training of GLM-5.3 Flash.
> On Paper Instruments' internal benchmark for client-ready deliverables, it scored 59.3 at $0.13 per task, versus 57.8 at $8.19 for Claude Fable 5.
> Each training task was graded on its own rubric, since a diligence memo or a board deck has no single correct answer.
