llama.cpp 新增决策模型与 /v1/systemone 端点
原标题：New in llama.cpp: Decision Models
AI 摘要
llama.cpp 新增 /v1/systemone 端点，支持决策模型（Decision Models）。这类模型不生成文本，而是对给定选项打分并返回概率，单次前向传播即可完成，适用于请求路由、内容审核、Agent 步骤校验等场景。官方同时列出 Julia-1、Laya、Kev-4B、lev、OpenJev 等开源模型，其中 OpenJev 支持图像输入，API 沿用 TypeSafe Jev 模型的 System One 格式，现有客户端只需更换 base URL。
正文节选
/v1/systemone endpoint. You send a state (text, JSON, a screenshot) and typed questions. The model returns a probability for each option in a single forward pass. The API follows the System One format introduced with TypeSafe's Jev model, so existing clients only need a new base URL. Implementation details are in PR #29818. What is a decision model? A model that answers by scoring the options you give it, instead of generating text. A chat model spends one forward pass per output token, and its