Paper Instruments 发布开源模型 Ultramarine 1 Flash，面向银行、律所和咨询机构的文档密集型工作负载，基于 GLM-5.3 Flash 后训练而来。在其内部交付物基准上，该模型以每任务 $0.13 得分 59.3，对比 Claude Fable 5 的 $8.19 得分 57.8；API 已可用，权重将在两周内开放。
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.
We are releasing Ultramarine 1 Flash, a frontier-class model built for knowledge work. It is open-source and achieves similar performance to Fable 5, while being 60x cheaper. It was post-trained by a team of 5 for ~$300k all-in. Available on API now, with weights releasing in 2 weeks.在 X 查看被引用的帖子
来源：🚨 AI News | TestingCatalog · x.com