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Xmodel-2 Technical Report

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arxiv 2412.19638 v1 pith:R7BX4S2P submitted 2024-12-27 cs.AI

classification cs.AI
keywords xmodel-2modelreasoningtraininggithubmodelstasksachieves
verification ladder T0 review T1 audit T2 compute T3 formal
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Xmodel-2 is a 1.2-billion-parameter large language model designed specifically for reasoning tasks. Its architecture enables different model scales to share a unified set of hyperparameters, allowing for extensive experimentation on smaller models and seamless transfer of optimal configurations to larger models. To maximize training efficiency and stability, Xmodel-2 employs the WSD learning rate scheduler from MiniCPM. Pretrained on 1.5 trillion tokens from diverse sources, Xmodel-2 achieves state-of-the-art performance in complex reasoning and agent-based tasks, while maintaining low training costs. These results highlight the potential of efficient model design and training strategies in advancing reasoning capabilities. Model checkpoints and code are publicly available on GitHub at https://github.com/XiaoduoAILab/Xmodel-2

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Cited by 1 Pith paper

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  1. MindFlow: Revolutionizing E-commerce Customer Support with Multimodal LLM Agents

    cs.CL 2025-07 reject novelty 4.0 of 10

    An e-commerce support agent built from known LLM components reports 93.53% relative A/B improvement and 62.5% pass^5 ablation gain, but no code or public benchmark is provided.

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