China Telecom's Xing4.0-29B-A4B open-sourced: trained on Ascend NPUs, 75 on SWE-bench Verified

jacek2023 · reddit · 2026-11-07

China Telecom AI released Xing4.0-29B-A4B (GGUF quant by bartowski), a 29B-total/4B-active MoE with MLA attention and native 256K context (extensible to 512K) — reportedly the first model at this scale trained entirely on Ascend NPUs with MindSpore, with co-optimization boosting training throughput 96%. Agent-oriented architecture (mHC + MLA + MTP) targets multi-step planning and tool calling. Benchmarks: SWE-bench Verified 75.0, Terminal-Bench 2.1 57.5, Claw-Eval 76.55. Supports LLaMA-Factory/MindFormers fine-tuning and SGLang/vLLM/KTransformers deployment, with adaptations for agent frameworks like OpenCode and Claude Code.

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