Tencent Holdings Ltd.’s shares rose to their highest since 2021 after DeepSeek, the AI service that’s shaken up the industry since its emergence this year, debuted on the big tech company’s WeChat social media platform.

The Chinese technology giant has begun tests to integrate homegrown startup DeepSeek’s AI model into its Weixin messaging app.

Shares of Tencent were set to open up 6.6% on Monday after the company said its Weixin messaging app has launched beta testing with Deepseek as firms race to link up with China's rising artificial intelligence start-up.