Fast Models, Slow Evidence: A Paired and Self-Audited Evaluation of System-1 Decision Models for LLM Agent Harnesses

cs.AI, cs.CL, cs.CR, cs.LG

Submitted: 2026-10-01

Updated: 2026-10-01

Comments: 11 pages, 7 figures. Code and data: https://github.com/David-DL-Space/sys1-eval

Code: https://github.com/David-DL-Space/sys1-eval

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Sources

• FrugalGPT: How to Use Large Language Models While Reducing Cost and Improving Performance
• RouterBench: A Benchmark for Multi-LLM Routing System
• Llama Guard: LLM-based Input-Output Safeguard for Human-AI Conversations
• RouteLLM: Learning to Route LLMs with Preference Data
• Gorilla: Large Language Model Connected with Massive APIs
• Corrective Retrieval Augmented Generation
• Benchmarking and Defending Against Indirect Prompt Injection Attacks on Large Language Models

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