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RankingOfficeQA Pro

OfficeQA Pro

Data updated 24 Sept 2026

Bucket: Agentic
Unit: percent
Direction: Higher is better
Version: —
Display harness: Claude Fable 5.1 and Claude Mythos 5.1 System Card
Board: https://www.anthropic.com/claude-fable-5-1-mythos-5-1-system-card

Compare published benchmark results with category weights →

Models

Published configurations retain their source and harness labels. Missing results remain unknown.

1–4 of 4 entries

Model	Score	Harness	Evidence	Source-recorded date
Claude Fable 5.1Anthropic	69% Reported settings & source Extracted-text Treasury corpus in sandbox; code execution; production Messages API with safeguards/fallback;128koutput cap. Pro133questions. Fable is the safeguarded deployed configuration; selected tasks may use disclosed Opus fallback, except evaluations explicitly counting safety blocks as failures. Claude Fable 5.1 and Claude Mythos 5.1 System Card · 8.15.1 · reviewed 2026-09-24	Claude Fable 5.1 and Claude Mythos 5.1 System Card	lab self-report	2026-09-24
Claude Opus 5Anthropic	66.9% Reported settings & source Extracted-text Treasury corpus in sandbox; code execution; production Messages API with safeguards/fallback;128koutput cap. Pro133questions. Claude Fable 5.1 and Claude Mythos 5.1 System Card · 8.15.1 · reviewed 2026-09-24	Claude Fable 5.1 and Claude Mythos 5.1 System Card	lab self-report	2026-09-24
Claude Fable 5Anthropic	57.9% Reported settings & source Databricks evaluation reading documents as images; differs from extracted-text harness. Fable is the safeguarded deployed configuration; selected tasks may use disclosed Opus fallback, except evaluations explicitly counting safety blocks as failures. Claude Fable 5.1 and Claude Mythos 5.1 System Card · 8.15.1 · reviewed 2026-09-24	Claude Fable 5.1 and Claude Mythos 5.1 System Card	lab self-report	2026-09-24
Claude Opus 5.5Anthropic	67.7% Reported settings & source Harder 133-question subset; agentic extracted-text Treasury Bulletin corpus with code execution; max effort; mean of five runs. Provider-published lab self-report from the Claude Opus 5.5 system card (SHA256 7311c9c6bbb16d012f1c12c7418b05949fcf7ae3e30d2c40f22050074b2a7378). Not an independent board. Comparison limit: Provider-published lab self-report. Shown as a labeled claim and not admitted as a matched board comparison. Claude Opus 5.5 System Card · section 8.14.1 · reviewed 2026-09-22	Claude Opus 5.5 System Card	lab self-report	2026-09-22