Cray Research Inc announced that it has extended the contract of its founder, Seymour Cray, now a free-lance designer for the company, to 1992, and says that he is now at work designing the Cray 4 for the company. The machine, for the mid-1990s, is being designed in Gallium Arsenide, and is planned to have a cycle time of 1nS, compared with 4nS of the fastest supercomputers today. The machine will have 64 processors, and is being designed to deliver 1,000 times the performance of the Cray 1, 10 times that of the Cray 3 due out in 18 months.