California – October 31, 2026 -- Switching off Gemma 4's default reasoning with a single flag raised accuracy by up to 48 points, cut cost 6x to 8x and made a correct answer up to 19x faster on short verifiable tasks, according to a 27-model local benchmark run on a Strix Halo machine with a power meter attached. The 12B and 26B variants rose from about 52% to 100% on the easy suite.