今日，特斯拉CEO埃隆·馬斯克通過X平臺正式對外宣佈，旗下xAI公司開發的大模型Grok4.2版本候選發佈版（公開測試版）已正式開放供用戶使用。 不過，用戶若想體驗這一新版本，需在平臺中專門選擇Grok4.2公測版並完成激活操作，系統並不會自動將現有版本升級至該公測版。
在Alpha Arena 1.5賽季中，xAI的Grok4.20模型以12.11%的回報率奪冠，將1萬美元在14天內增值至12,193美元，成爲唯一盈利的大型語言模型。同期GPT-51和Gemini3.0分別虧損3.4%和5.7%。比賽採用無人干預規則，模型需在“苦行僧模式”（高槓杆限制）和“情境感知模式”（可查看對手持倉）下自動交易。
Xai
$14
輸入tokens/百萬
$70
輸出tokens/百萬
128
上下文長度
-
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