Agentic benchmark
Toolathlon Verified Pass³ leaderboard
Toolathlon Verified Pass cubed. Every model the catalog carries a published Toolathlon Verified Pass³ value for, ranked by that value.
CategoryAgentic
MeasureAll-three-trials pass rate
Tasks108 verified real-world tool-use tasks
DifficultyLong-horizon application tool use
Published byClaude Opus 5 System Card
Fraction of Toolathlon Verified tasks solved in all three independent trials.
Toolathlon Verified Pass³ ranking
2 models with a published Toolathlon Verified Pass³ value, ordered by that value, highest first. Models the source has not scored on this benchmark are not listed — they are unmeasured, not last.
| Rank | Model | Provider | All-three-trials pass rate |
|---|---|---|---|
| 1 |  Claude Fable 5.1 | Anthropic | 73.1 |
| 1 | Claude Opus 5 | Anthropic | 73.1 |
Evidence key: Observed
Rows are ordered by the value Claude Opus 5 System Card published, highest first. The source does not state whether a higher value is the better result, so this page does not either: for a benchmark that measures a rate of failure, read the table from the bottom.