Baidu Takes Big Step to Catch Up by Making Ernie AI Bot Free

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Baidu Inc. has taken the unprecedented step of declaring its Ernie AI chatbot free for users, a move that could help the Chinese search giant regain momentum in a race to develop next-generation artificial intelligence.

Its chatbot — modeled on OpenAI’s ChatGPT — will be free for all individual users starting April, the company said in a WeChat post Thursday. Baidu’s stock extended gains in Hong Kong to climb more than 12%, its biggest intraday gain since October.