马斯克的xAI终于开放Grok API！定价是GPT 4o的2倍！
Elon Musk旗下的xAI公司终于兑现了8月份的承诺，正式推出了其旗舰AI模型Grok的API接口。然而，这个期待已久的API版本却显得有些仓促和基础。目前，xAI API仅提供一个名为"grok-beta"的模型。定价方面，输入tokens收费为5美元/百万tokens（约75万个单词），输出tokens则为15美元/百万tokens。值得注意的是，tokens是指将原始数据细分后的基本单位，就像将"fantastic"分解为"fan"、"tas"和"tic"这样的音节。有趣的是，目前尚不清楚"grok-beta"具体对应哪个版本的Grok模型。虽然X平台上最新版本是Grok2，但API文档中同
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