The WeChat Image Platform is an open platform which provides image recognition technology for third-party App developers. With the help of this platform, developers can easily enable their own applications with mobile visual search functionality. The only things needed to do are to integrate a client SDK in the App, and send image search requests to the recognition server on WeChat cloud. Typical image content that can be recognized including posters, advertisements, printed materials, covers of goods, etc, and these images shall be uploaded to the cloud to be indexed. Using the image recognition result，the developer's App can bring various experiences and values to its users, such as extended reading, purchasing guide, interactive activities, etc.
WeChat Speech Platform provides speech technology freely for developers, including speech recognition technology and speech synthesis technology. There are two forms of speech recognition. The large vocabulary speech recognition has been used in WeChat which can improve chat input efficiency and its accuracy rate can reach above 90%. The other is grammar speech recognition. Users upload vocabulary and can recognize the word of the vocabulary. It is more accurate than large vocabulary speech, but its vocabulary is limited. Speech synthesis technology offers high quality text-to-speech (TTS) service for Chinese and English text. The technology gives more natural interaction between human and machines.