What it measures
- AA-Briefcase v1.1
AA-Briefcase v1.1
Long-horizon knowledge-work evaluation; reported Elo, not a percentage.
How to read the score
Elo; higher is better.
Sourced Ranking
| Rank | Model | Provider | Score | Source | Source Type | Verified |
|---|---|---|---|---|---|---|
| 1 | Claude Opus 5.5 | Anthropic | 1822 | Introducing Claude Sonnet 5.5 Accessed 2026-10-02 | official | Yes |
| 2 | Claude Sonnet 5.5 | Anthropic | 1811 | Introducing Claude Sonnet 5.5 Accessed 2026-10-02 | official | Yes |
Limitations
- Scores may not be directly comparable across model reports, harnesses, or task releases.
- Preserve the exact version, evaluation configuration, and reporting source in each result row.
- Vendor and third-party scores are stored as raw evidence and are not automatically used in the five-axis capability radar.
leaderboard
AA-Briefcase v1.1 source record
Preserve the exact version, evaluation configuration, and reporting source in each result row. Vendor and third-party scores are stored as raw evidence and are not automatically used in the five-axis capability radar.