EXHIBIT 99.2

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

            In connection with the Annual Report of Cray Inc. (the "Company") on
Form 10-K for the year ended December 31, 2002 as filed with the Securities and
Exchange Commission on the date hereof (the "Report"), I, Scott J. Poteracki,
Chief Financial and Accounting Officer of the Company, certify, pursuant to 18
U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002, that, to the best of my knowledge:

        (1) The Report fully complies with the requirements of section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

        (2) The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company.


                                          /s/ SCOTT J. POTERACKI
                                          --------------------------------------
                                          Scott J. Poteracki
                                          Chief Financial and Accounting Officer
                                          March 28, 2003