OpenAI 发布 gpt-oss-120b 与 gpt-oss-20b 模型卡
OpenAI 发布 gpt-oss-120b 和 gpt-oss-20b 两个开放权重推理模型,采用 Apache 2.0 许可,兼容 Responses API,支持工具调用、完整 CoT 与可调推理强度。gpt-oss-120b 为 36 层 MoE 架构,116.8B 总参数、5.1B 激活参数,MoE 权重以 MXFP4 量化后可放入单张 80GB GPU;gpt-oss-20b 为 24 层、20.9B 总参数、3.6B 激活参数,可在 16GB 内存设备上运行。OpenAI 对 gpt-oss-120b 做了对抗性微调测试,其安全咨询组认为即便使用其训练栈进行微调,模型也未在生物化学与网络安全两个类别达到 Preparedness Framework 的高能力阈值。

gical capabilities in open source foundation models? To investigate this question, we compared gpt-oss-120b to other released open source models. At first, we primarily considered DeepSeek R1-0528. Partway through our process, the Qwen 3 Thinking and Kimi K2 models were released, and we added these to our comparison set. These evaluations confirmed that Qwen 3 Thinking and Kimi K2 have advanced to a level such that gpt-oss-120b does not significantly advance the state of the art on biosecurity-r
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