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Paper · 2505.19433 · 2025

Can Compressed LLMs Truly Act? An Empirical Evaluation of Agentic Capabilities in LLM Compression

arXiv · PDF · Open in the Atlas

Code that ran

We lifted 4 functions out of this paper's own repositories and ran 4 of them in a sandbox. "Ran" means the function executed on a synthesized input and returned a value. It is not a reproduction of the paper's results.

RepositoryRoleRan
pprp/acbench canonical 2 of 2
copy not recorded — 2 of 2
FunctionStatusWhere it lives
calculate_energy Ran pprp/acbench/acbench/analysis/analyze_energy/run_energy_analysis.py
code served (permissive licence) · get_code("fa1ded26143f04d3")
process_batch Ran pprp/acbench/acbench/analysis/analyze_energy/run_energy_analysis.py
code served (permissive licence) · get_code("f1f3b4b8aaac5ce6")
workflow_to_graph_list Ran this paper's copy was not recorded; identical code first harvested from zjunlp/worfbench
pointer only · get_code("8e2012e57dc7319f")
workflow_to_node_list Ran this paper's copy was not recorded; identical code first harvested from zjunlp/worfbench
pointer only · get_code("c8a83aad8c019dff")

Repositories linked to this paper

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Abstract

Post-training compression reduces the computational and memory costs of large language models (LLMs), enabling resource-efficient deployment. However, existing compression benchmarks only focus on language modeling (e.g., perplexity) and natural language understanding tasks (e.g., GLUE accuracy), ignoring the agentic capabilities - workflow, tool use/function call, long-context understanding and real-world application. We introduce the Agent Compression Benchmark (ACBench), the first comprehensive benchmark for evaluating how compression impacts LLMs' agentic abilities. ACBench spans (1) 12 tasks across 4 capabilities (e.g., WorfBench for workflow generation, Needle-in-Haystack for long-context retrieval), (2) quantization (GPTQ, AWQ) and pruning (Wanda, SparseGPT), and (3) 15 models, including small (Gemma-2B), standard (Qwen2.5 7B-32B), and distilled reasoning LLMs (DeepSeek-R1-Distill). Our experiments reveal compression tradeoffs: 4-bit quantization preserves workflow generation and tool use (1%-3% drop) but degrades real-world application accuracy by 10%-15%. We introduce ERank, Top-k Ranking Correlation and Energy to systematize analysis. ACBench provides actionable insights for optimizing LLM compression in agentic scenarios. The code can be found in https://github.com/pprp/ACBench.

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