PerspectiveGap: A Benchmark for Multi-Agent Orchestration Prompting

• URL: http://arxiv.org/abs/2606.08878v1
• Date: Sun, 07 Jun 2026 23:26:12 GMT
• Title: PerspectiveGap: A Benchmark for Multi-Agent Orchestration Prompting
• Abstract summary: PerspectiveGap is a benchmark for evaluating LLMs' ability to compose orchestration prompts for multi-agent systems.<n>In experiments with 27 commercial models from 10 companies, GPT-5.5 substantially outperforms all competitors.
• Score: 6.877973774604102
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Real-world LLM applications are moving beyond single-agent workflows toward orchestrated multi-agent systems, yet current models still struggle to determine what each sub-agent needs to know. To measure this, we introduce PerspectiveGap, a benchmark for evaluating LLMs' ability to compose orchestration prompts for multi-agent systems. PerspectiveGap contains 110 scenarios, each evaluated through two distractor-mixed task formats: role-fragment assignment and free-form prompt writing. These scenarios are organized into 10 topologies, which are distilled from the authors' real-world engineering practice and framed by the Prompt Economy principle: building loop-centered orchestrations that maximize utility with minimal role and engineering overhead. In experiments with 27 commercial models from 10 companies, GPT-5.5 substantially outperforms all competitors, whereas Opus 4.7 shows a notable weakness in orchestration prompting despite its strong coding performance. Nevertheless, PerspectiveGap remains challenging: the evaluated models achieve an average combined pass rate of only 14.9\% (GPT-5.5 62.0\%) and an average overall leakage rate of 246.5\% (a per-scenario information leak-event count, not a proportion; GPT-5.5 49.1\%). These findings suggest that multi-agent orchestration prompting is a distinct and under-evaluated capability, and PerspectiveGap provides a foundation for measuring and improving it systematically.

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