SRI International
In December 2007, SRI launched a spin-off company, Siri Inc., which Apple acquired in April 2010. In October 2011, Apple announced the Siri personal assistant as an integrated feature of the Apple iPhone 4S. Siri's technology was born from SRI's work on the DARPA-funded CALO project, described by SRI as the largest artificial intelligence project ever launched. Siri was co-founded in December 2007 by Dag Kittlaus (CEO), Adam Cheyer (vice president, engineering), and Tom Gruber (CTO/vice president, design), together with Norman Winarsky (vice president of SRI Ventures). Investors included Menlo Ventures and Morgenthaler Ventures.
IOS 7
Siri features a new design where the assistant fades in with the background app being blurred. While speaking, visual vocal waves appear, that form into a spinning circle as the device communicates with Apple's servers. Siri can now control a limited set of device settings, including Bluetooth. The assistant can alternatively send the user directly to the settings menu if their query cannot be controlled by voice, or otherwise, displays an error if the request can't be processed. For searching the Internet, Bing became the default search engine, and Siri's web resources were expanded to include Wikipedia. Siri was also more deeply connected into Twitter, offering full tweet search.