今日，特斯拉CEO埃隆·马斯克通过X平台正式对外宣布，旗下xAI公司开发的大模型Grok4.2版本候选发布版（公开测试版）已正式开放供用户使用。 不过，用户若想体验这一新版本，需在平台中专门选择Grok4.2公测版并完成激活操作，系统并不会自动将现有版本升级至该公测版。
在Alpha Arena 1.5赛季中，xAI的Grok4.20模型以12.11%的回报率夺冠，将1万美元在14天内增值至12,193美元，成为唯一盈利的大型语言模型。同期GPT-51和Gemini3.0分别亏损3.4%和5.7%。比赛采用无人干预规则，模型需在“苦行僧模式”（高杠杆限制）和“情境感知模式”（可查看对手持仓）下自动交易。
Xai
$14
输入tokens/百万
$70
输出tokens/百万
128
上下文长度
-
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