IBM 发布 Granite 4.2 语言模型,详解其构建流程
IBM 发布 Granite 4.2 系列语言模型,包含 3B、8B、30B 三个尺寸,均可输出思维链并支持 thinking 与非 thinking 模式,另设低推理预算的 low-effort 模式。8B 和 30B 额外经过智能体 RL 阶段,学习调用工具、编辑运行代码、操作终端和联网搜索,全部模型支持原生工具调用,可通过 OpenAI 兼容接口接入智能体框架。模型基于 Granite-4.1 base 后训练,SFT 数据约 720 万条、约 100B token,RL 采用异步 GRPO 分阶段课程,并已发布 FP8、NVFP4、MXFP4 和 GGUF 量化版本。
safety without eroding the capabilities the earlier stages built. In addition to human preference and safety alignment, this stage also applies a reasoning-length penalty to discourage overly verbose reasoning behavior acquired during earlier stages. How the Three Sizes Differ Same method and infrastructure; the difference is how far up the ladder each model goes. 3B is a strong foundational-RL model; 8B and 30B add the agentic-RL block on top, learning to act with tools in real environments. Re
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