The long , bright gamma-ray burst GRB 070125 was localized by the Interplanetary Network . We present light curves of the prompt gamma-ray emission as observed by Konus-WIND , RHESSI , Suzaku-WAM , and Swift -BAT . We detail the results of joint spectral fits with Konus and RHESSI data . The burst shows moderate hard-to-soft evolution in its multi-peaked emission over a period of about one minute . The total burst fluence as observed by Konus is 1.79 \times 10 ^ { -4 } erg/cm ^ { 2 } ( 20 keV–10 MeV ) . Using the spectroscopic redshift z = 1.548 , we find that the burst is consistent with the “ Amati ” E _ { peak,i } - E _ { iso } correlation . Assuming a jet opening angle derived from broadband modeling of the burst afterglow , GRB 070125 is a significant outlier to the “ Ghirlanda ” E _ { peak,i } - E _ { \gamma } correlation . Its collimation-corrected energy release E _ { \gamma } = 2.5 \times 10 ^ { 52 } ergs is the largest yet observed .