amazon-LAR-27B-GGUF

LAR-27B is a 27-billion-parameter open-weights agentic language model developed by Amazon, post-trained from Qwen/Qwen3.8-27B (Apache 2.0) on a license-filtered subset of the SWE-Rebench dataset to solve complex, long-horizon software engineering and terminal-usage tasks. Moving beyond sparse outcome-only supervision, the model is trained with the Lean4AgenticRL framework, which grounds open-ended agentic reinforcement learning in a unified Lean 4 formalization schema. This methodology establishes problem-specific workflows and generates verifiable, multi-level process rewards—capturing low-level tool-call accuracy, mid-level workflow-stage progress, and high-level task outcomes—to guide policy updates via workflow-stage-normalized Group Relative Policy Optimization (GRPO). Through this formal, multi-granular reward structure, LAR-27B sets a strong benchmark for its parameter class, achieving 84.2% on SWE-Bench-Verified, 68.2% on TerminalBench-2.0, and 77.3% on TerminalBench-2.1.

MTP — Speculative Decoding: No

Model Files

File Name Quant Type File Size File Link Description
LAR-27B.BF16.gguf BF16 53.8 GB Link Full BF16 weights. Highest quality, largest file size.
LAR-27B.Q3_K_L.gguf Q3_K_L 14.3 GB Link Lower quality but usable, good for low RAM availability.
LAR-27B.Q4_K_M.gguf Q4_K_M 16.5 GB Link Good quality, default size for most use cases, recommended.
LAR-27B.Q5_K_M.gguf Q5_K_M 19.2 GB Link High quality, recommended.

llama.cpp

LLM inference in C/C++ — https://github.com/ggml-org/llama.cpp

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GGUF
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27B params
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qwen35
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