LifeSci Diamond (2026-11) - Arca Workflow - Strict Pass Rate: leaderboard

The November 3 LifeSci Diamond cohort has 55 regulatory affairs tasks, one saved answer per task, a common rubric and an LLM jury (Sonnet 5, GPT-5.6 Sol and Gemini 3.1 Pro Preview). Results combine earlier batches with six November additions. The exact scored task/rubric manifest is not public; 11 keys lack expert review. Arca’s chat workflow uses its own tools and system instructions through OpenRouter, with a 20-minute limit per turn. Three fixed API configurations and Auto are separate runs; saved Auto answers selected GPT-6.1 Terra on all 55 tasks in this edition. Effective provider settings were not recorded. Strict pass requires every rubric line to pass and no fail line.

Metric: Strict pass rate (%). Source: www.arca.inc. Saturation forecast: Rough model projection: around 2026. 4 models tracked.

Top models

#ModelScoreOverall rank
1GPT-6 Astra (Arca Run: LifeSci Diamond 2026-11; Fixed)29.1
2GPT-6.1 Terra (Arca Run: LifeSci Diamond 2026-11; Auto)23.6
3Claude Opus 5 (Arca Run: LifeSci Diamond 2026-11; Fixed)18.2
4Claude Opus 5.5 (Arca Run: LifeSci Diamond 2026-11; Fixed)16.4

Interactive version: theaggregate.ai/benchmark?slug=lifesci-diamond-2026-11-arca-workflow-strict-pass-rate · How It Works · Data refreshed daily, snapshot 2026-11-05.