{"slug": "benchcompass-from-scores-to-signals-for-training-and-harness-decisions-in-domain", "title": "BENCHCOMPASS: From Scores to Signals for Training and Harness Decisions in Payment-Domain LLMs", "summary": "Researchers released BENCHCOMPASS, a payment-domain benchmark for large language models built from typed evidence packs with expert-reviewed admission, according to the arXiv paper 2609.18270v1. Across 16 model variants, the best frontier model scored 89.6% on Open Context-Grounded Reasoning and 81.7% under attacked inputs, while a representative 32B open-weight model reached 69.8% and 42.6%, leaving the benchmark unsaturated. The benchmark isolates three failure modes: missing parametric payment knowledge, incomplete reasoning over supplied rules, and failure to reject plausible but invalid workflows.", "body_md": "arXiv:2609.18270v1 Announce Type: new \nAbstract: Payment operations are a critical financial infrastructure, but the value of large language models in this domain remains unclear because payment rules change quickly, evidence is fragmented, and decisions depend on transaction state, participant role, region, and payment rail. Existing benchmarks do not isolate whether failures come from missing payment-rule knowledge, poor use of supplied evidence, or brittleness under imperfect harness inputs. We introduce BENCHCOMPASS, a payment-domain benchmark whose construction pipeline builds scenario-grounded tasks from typed evidence packs, applies LLM-based quality checks, creates task-input attack variants, and reserves final item admission for domain experts. The release contains an expert-reviewed Pro benchmark covering payment knowledge, context-grounded scenario reasoning, and Attacked Open robustness, plus a lower-assurance Normal pool for inspection and future curation. Across 16 model variants, BENCHCOMPASS shows qualitatively different failure modes: missing parametric payment knowledge, incomplete reasoning over supplied rules, and failure to reject plausible but invalid workflows. The benchmark remains unsaturated: the best frontier model reaches 89.6% on Open Context-Grounded Reasoning and 81.7% under attacked inputs, while a representative 32B open-weight model reaches 69.8% and 42.6%. Benchmark data and code are available at https://github.com/ant-intl/BenchCompass.", "url": "https://wpnews.pro/news/benchcompass-from-scores-to-signals-for-training-and-harness-decisions-in-domain", "canonical_source": "https://www.machinebrief.com/news/benchcompass-from-scores-to-signals-for-training-and-harness-7cb5", "published_at": "2026-09-17 04:00:00+00:00", "updated_at": "2026-09-17 05:54:37.544675+00:00", "lang": "en", "topics": ["large-language-models", "ai-research", "ai-safety"], "entities": ["BENCHCOMPASS", "arXiv", "GitHub"], "alternates": {"html": "https://wpnews.pro/news/benchcompass-from-scores-to-signals-for-training-and-harness-decisions-in-domain", "markdown": "https://wpnews.pro/news/benchcompass-from-scores-to-signals-for-training-and-harness-decisions-in-domain.md", "text": "https://wpnews.pro/news/benchcompass-from-scores-to-signals-for-training-and-harness-decisions-in-domain.txt", "jsonld": "https://wpnews.pro/news/benchcompass-from-scores-to-signals-for-training-and-harness-decisions-in-domain.jsonld"}}