Pyrazole carboxamide compounds of Formula (I) are provided (X and R1-R6 are as defined in the claims), with various substituents, and including stereoisomers, tautomers, and pharmaceutically acceptable salts thereof, useful for inhibiting Btk, and for treating cancer and immune disorders such as inflammation mediated by Btk. Methods of using compounds of Formula (I) for in vitro, in situ, and in vivo diagnosis, and treatment of such disorders in mammalian cells, or associated pathological conditions, are disclosed.