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Every Sample Matters: Leveraging Mixture-of-Experts and High-Quality Data for Efficient and Accurate Code LLM

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arxiv 2503.17793 v1 pith:6DFBP57X submitted 2025-03-22 cs.LG cs.AIcs.CL

Every Sample Matters: Leveraging Mixture-of-Experts and High-Quality Data for Efficient and Accurate Code LLM

classification cs.LG cs.AIcs.CL
keywords codedatamodelsperformanceefficienthigh-qualityling-coder-litearea
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Recent advancements in code large language models (LLMs) have demonstrated remarkable capabilities in code generation and understanding. It is still challenging to build a code LLM with comprehensive performance yet ultimate efficiency. Many attempts have been released in the open source community to break the trade-off between performance and efficiency, such as the Qwen Coder series and the DeepSeek Coder series. This paper introduces yet another attempt in this area, namely Ling-Coder-Lite. We leverage the efficient Mixture-of-Experts (MoE) architecture along with a set of high-quality data curation methods (especially those based on program analytics) to build an efficient yet powerful code LLM. Ling-Coder-Lite exhibits on-par performance on 12 representative coding benchmarks compared to state-of-the-art models of similar size, such as Qwen2.5-Coder-7B and DeepSeek-Coder-V2-Lite, while offering competitive latency and throughput. In practice, we achieve a 50\% reduction in deployment resources compared to the similar-sized dense model without performance loss. To facilitate further research and development in this area, we open-source our models as well as a substantial portion of high-quality data for the annealing and post-training stages. The models and data can be accessed at~\url{https://huggingface.co/inclusionAI/Ling-Coder-lite}.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. From Trainee to Trainer: LLM-Designed Training Environment for RL with Multi-Agent Reasoning

    cs.CL 2026-06 unverdicted novelty 6.0

    The LLM-as-Environment-Engineer framework lets the policy model redesign its own RL environments on the new MAPF-FrozenLake testbed, outperforming larger models and fixed baselines with Qwen3-4B.

  2. Attention Amnesia in Hybrid LLMs: When CoT Fine-Tuning Breaks Long-Range Recall, and How to Fix It

    cs.CL 2026-06 conditional novelty 6.0

    CoT SFT disrupts long-range routing in hybrid models via changes to W_Q and W_K; QK-Restore restores pre-SFT projections to recover NIAH performance.

  3. Bridging Generation and Training: A Systematic Review of Quality Issues in LLMs for Code

    cs.SE 2026-05 accept novelty 6.0

    A review of 114 studies creates taxonomies for code and data quality issues, formalizes 18 propagation mechanisms from training data defects to LLM-generated code defects, and synthesizes detection and mitigation techniques.

  4. Advancing Multimodal Judge Models through a Capability-Oriented Benchmark and MCTS-Driven Data Generation

    cs.AI 2026-02 reject novelty 5.0

    A capability-oriented multimodal judge benchmark and MCTS-based preference-data generation improve judge models on some benchmarks, but the paper's SOTA claim is not supported by its own numbers.

  5. Dream-Coder 7B: An Open Diffusion Language Model for Code

    cs.CL 2025-09 conditional novelty 5.0

    An open 7B diffusion language model for code, adapted from Qwen2.5-Coder, reaches 21.4% pass@1 on LiveCodeBench and shows adaptive, non-left-to-right generation patterns.

  6. Mellum2 Technical Report

    cs.CL 2026-05 unverdicted novelty 3.0

    Mellum 2 is a 12B MoE model with 2.5B active parameters, trained on 10.6T tokens with MoE, GQA, SWA, and MTP, then post-trained into Instruct and Thinking variants, claimed competitive with 4B-14B models at 2.5B compute.