Sogou Showcases Speech Synthesis and Style Transfer Technology on Earnings Call

BEIJING,Nov. 6,2018 -- Sogou Inc. (NYSE: SOGO) ("Sogou" or "the Company"),an innovator in search and a leader inChina'sinternet industry,yesterday demonstrated its personalized speech synthesis technology and style transfer learning technology during the company's third quarter 2018 earnings call.

This technology can convert Chinese or English text into a synthesized voice that is highly similar to an individual's natural voice.

Xiaochuan Wang,Chief Executive Officer of Sogou,leveraged the technology to deliver his prepared remarks during the company's third quarter 2018 earnings call. This marks the inaugural use of speech synthesis technology during an earnings call.

Xiaochuan Wang said,"I am very pleased to demonstrate the cutting-edge technologies that have been developed at the Sogou Voice Interaction Technology Center. This is just one of the potential applications of this technology."

Wang also demonstrated this technology at the RISE conference held in Hong Kong in July and at Tsinghua University's first European Alumni Conference held in London in October. On both occasions,the speech synthesis technology was used to synthesize a song that replicated and was sung in Wang's voice. This was developed by combining 14 minutes of Wang's speech data,his style of singing and the original version of the song.

Sogou's personalized speech synthesis technology stands out against that of peers as it simulates a person's voice in his or her style.

Speech synthesis technology is just of several AI fields in which Sogou already holds a leading position. The company has deployed AI to empower its core businesses and to build competitive advantages in cutting-edge fields,such as voice recognition,computer vision,machine translation and Q&A.

Safe Harbor Statement

This announcement contains forward-looking statements. It is currently expected that the Business Outlook will not be updated until release of Sogou's next quarterly earnings announcement. However,Sogou reserves the right to update its Business Outlook at any time for any reason. Statements that are not historical facts,including statements about Sogou's and Sogou management's beliefs and expectations,are forward-looking statements. These statements are based on current plans,estimates,and projections,which involve inherent risks and uncertainties. We caution you that a number of important factors could cause actual results to differ materially from those contained in any forward-looking statement. Potential risks and uncertainties include,but are not limited to,intense competition in the market for search and search-related services; our need to continually innovate and adapt in order to grow our business; our reliance on Tencent platforms for a significant portion of our user traffic; and uncertainty regarding the extent and reach of PRC governmental regulation of sponsored search. Further information regarding these and other risks is included in Amendment No. 2 to Sogou's Registration Statement on Form F‑1 (Registration No. 333-220928) filed with the Securities and Exchange Commission on November 6,2017,and other documents Sogou files with or submits to the Securities and Exchange Commission.

About Sogou

Sogou Inc. (NYSE: SOGO) is an innovator in search and a leader in China's internet industry. With a mission to make it easy to communicate and get information,Sogou has grown to become the second largest search engine by mobile queries and the fourth largest internet company by MAU in China. Sogou has a wide range of innovative products and services including the Sogou Input Method,which is the largest Chinese language input software for both mobile and PC. Sogou is also at the forefront of AI development and has made significant breakthroughs in voice and image technologies,machine translation,and Q&A,which have been successfully integrated into our products and services.

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Rachael Layfield

Brunswick Group

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Email: sogou@brunswickgroup.com

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