Toolathlon Verified Pass cubed (Toolathlon Verified Pass³)
We show this table for reference; we do not rank on it.
Fraction of Toolathlon Verified tasks solved in all three independent trials.
Benchmark score on Toolathlon Verified Pass³ — November 13, 2026
We compile the Toolathlon Verified Pass³ rows from provider self-reports. Claude Opus 5 leads the table at 73.1%, followed by Claude Fable 5.1 (73.1%) and Claude Opus 5.5 (72.2%). We do not use these results to rank models overall.
Claude Opus 5
Anthropic
Reported by AnthropicClaude Fable 5.1
Anthropic
Reported by AnthropicClaude Opus 5.5
Anthropic
Reported by Anthropic4 modelsAgenticCurrentDisplay onlyUpdated November 13, 2026
Benchmark score table (4 models)
All 4 results on this page were reported by the labs that built the models.
| Rank | Model / configuration | Score | Who ran it | Parameters (B) | Open / closed |
|---|---|---|---|---|---|
| 1 | Claude Opus 5AnthropicReported by Anthropic | 73.1% | Reported by Anthropic | Not reported | Closed |
| 2 | Claude Fable 5.1AnthropicReported by Anthropic | 73.1% | Reported by Anthropic | Not reported | Closed |
| 3 | Claude Opus 5.5AnthropicReported by Anthropic | 72.2% | Reported by Anthropic | Not reported | Closed |
| 4 | Claude Sonnet 5.5AnthropicReported by Anthropic | 68.5% | Reported by Anthropic | Not reported | Closed |
- Lab-reported
- Benchmark-run
- Independent
Among the reported Toolathlon Verified Pass³ rows, Claude Opus 5 is first at 73.1%. The third row is 0.9 points behind. The broader top-10 range is 4.6 points, so many of the published results sit in a relatively narrow band.
4 models have been evaluated on Toolathlon Verified Pass³. The benchmark falls in the Agentic category. Toolathlon Verified Pass³ is currently displayed for reference but excluded from the scoring formula, so it does not directly affect overall rankings.
About Toolathlon Verified Pass³
Year
2026
Tasks
108 verified real-world tool-use tasks
Format
All-three-trials pass rate
Difficulty
Long-horizon application tool use
Table 8.13.6.A reports this reliability metric separately from Pass@1 and Pass@3.
Freshness and provenance
Version
Toolathlon Verified Pass³ 2026
Refresh cadence
Quarterly
Staleness state
Current
Question availability
Public benchmark set
BenchLM uses freshness metadata to decide whether a benchmark should still be treated as a strong differentiator, a benchmark to watch, or a display-only reference. For the full scoring policy, see the BenchLM methodology page.
Questions
What does Toolathlon Verified Pass³ measure?
Fraction of Toolathlon Verified tasks solved in all three independent trials.
Which model scores highest on Toolathlon Verified Pass³?
Claude Opus 5 by Anthropic currently leads with a score of 73.1% on Toolathlon Verified Pass³.
How many models are evaluated on Toolathlon Verified Pass³?
4 AI models have published results on Toolathlon Verified Pass³ in the BenchLM catalog.
Compare top models on Toolathlon Verified Pass³
Know when it’s worth switching models
The model to choose, the cheaper alternative, and the release we would wait on.
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