Tool Zero: Training Tool-Augmented LLMs via Pure RL from Scratch. - Yirong Zeng; Xiao Ding; Yutai Hou; Yuxian Wang; Li Du; Juyi Dai; Qiuyang Ding; Duyu Tang; Dandan Tu; Weiwen Liu; Bing Qin 001; Ting Liu 001 (CoRR, 2025)