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Arca: AI benchmarks & research

Regulatory-affairs AI company. Maintains the LifeSci Diamond benchmark.

Maintained by Arca

1 benchmark
  • LifeSci Diamond (2026-11)

    LifeSci Diamond is Arca's benchmark of 55 regulatory-affairs tasks (FDA/EMA submissions, labeling, compliance); practising specialists wrote or reviewed the answer keys for 44 of them. Scores are the strict pass rate: a task counts only when every rubric line is fully met and no penalty fires, as judged by GPT-6.1 Sol. One answer per task per model on the plain API with a web_search tool (Exa), provider default settings. 10 tasks are public; 45 are held out. Results are Arca's 4 November 2026 edition.

    healthcareListed onlyThird-party
    Leader
    GPT-6 Astra20.0%
    Models scored
    18

In one line

Arca maintains LifeSci Diamond (2026-11) (listed only, 18 models scored). It ships no models of its own on LLM Stats.

FAQ

Common questions about Arca.

What is Arca?

Regulatory-affairs AI company. Maintains the LifeSci Diamond benchmark. On LLM Stats it maintains 1 benchmark, led by LifeSci Diamond (2026-11). It ships no models of its own; each score on its benchmarks carries its own provenance label on the model page.

Which Arca benchmarks count toward the LLM Stats Score?

LifeSci Diamond (2026-11) is listed only. Only benchmarks admitted to the core set move the main leaderboard; the rest are shown for transparency.

Which models lead Arca's benchmarks?

GPT-6 Astra leads LifeSci Diamond (2026-11) at 20.0% (18 models scored). Each benchmark page lists the full ranking and how the results were produced.

Where are Arca's official benchmark results?

Arca's official site is https://arca.inc. Each benchmark page on LLM Stats links to that benchmark's own paper or leaderboard, and shows the scores next to every other benchmark so models can be compared on one page.