Unfortunately, the Sifter service and website has been decommissioned as of September 30, 2018. Thanks to our 6,970 users who created 16,128 free estimates from the complete, undeleted history of Twitter between 1/14/2014 and 9/29/2018.
Please contact Twitter for approval of future academic or commercial use cases. If you can get an approved use case from Twitter, we can still help you work with the data inside DiscoverText.
@DiscoverText remains open and is still the top-ranked text analysis platform on the Internet.
All paid jobs prior to the decommissioning will still be honored.
It’s possible that the search criteria you used for your estimate for Twitter tweets is too broad. Your estimate needs either a keyword, a set of keywords, or additional filters; otherwise the amount of data in the estimates for all English Tweets over a year or more will be too vast for processing. Consider refining your search criteria to limit the scope.
It's also possible that your query contains an error. Please see this document about the new Twitter Gnip PowerTrack rules.