RankingAA-Briefcase
AA-Briefcase
- Bucket
- Supporting evidence
- Unit
- index
- 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
The available records have no admitted matched comparison in the capability core. Raw results remain available below.
Compare published benchmark results with category weights →
Models
| Model | Score | Harness | Evidence | Source-recorded date |
|---|---|---|---|---|
| Claude Fable 5.1Anthropic | 2025 ratingReported settings & sourceArtificial Analysis; max effort; component analytical quality. 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 · 8.15.4 · reviewed 2026-09-12 | Claude Fable 5.1 and Claude Mythos 5.1 System Card | lab self-report | 2026-09-12 |
| Claude Opus 5Anthropic | 1980 ratingReported settings & sourceArtificial Analysis; max effort; component analytical quality. Claude Fable 5.1 and Claude Mythos 5.1 System Card · 8.15.4 · reviewed 2026-09-12 | Claude Fable 5.1 and Claude Mythos 5.1 System Card | lab self-report | 2026-09-12 |
| Claude Fable 5.1Anthropic | 1495 ratingReported settings & sourceArtificial Analysis; max effort; component presentation. 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 · 8.15.4 · reviewed 2026-09-12 | Claude Fable 5.1 and Claude Mythos 5.1 System Card | lab self-report | 2026-09-12 |
| Claude Opus 5Anthropic | 1572 ratingReported settings & sourceArtificial Analysis; max effort; component presentation. Claude Fable 5.1 and Claude Mythos 5.1 System Card · 8.15.4 · reviewed 2026-09-12 | Claude Fable 5.1 and Claude Mythos 5.1 System Card | lab self-report | 2026-09-12 |