# Claude Opus 4Default

> Source: Benchize (https://benchize.com) — https://benchize.com/models/claude-opus-4-default. When citing or reusing this content, credit "Benchize" and link to https://benchize.com/models/claude-opus-4-default.

Anthropic

Canonical URL: https://benchize.com/models/claude-opus-4-default
Last updated: Thu, 22 Oct 2026 07:32:33 GMT

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Anthropic

## Benchmarks

| Benchmark | Score | Rank |  |
| --- | --- | --- | --- |
| [BullshitBench v2](https://benchize.com/benchmarks/bullshitbench%3Av2.md) | 34% | 100 / 191 |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `green_rate` \| 0.34 \| score_fraction \| all_attempts \| Higher is better \| \| `red_rate` \| 0.3 \| score_fraction \| all_attempts \| Lower is better \| \| `refusal_rate` \| 0.0 \| score_fraction \| all_attempts \| Lower is better \| \| `avg_score` \| 0.99 \| score \| judge_grade_0_to_2 \| Higher is better \| ### Configuration Reasoning effort default suite v2 thinkingEnabled true ### Reported statistics acceptedCount 30 answeredCount 100 clearCount 34 errorCount 0 partialCount 36 rank 121 refusalCount 0 sampleSize 100 ### Source [Original source](https://api.github.com/repos/petergpt/bullshit-benchmark/contents/data/v2/latest/leaderboard.csv?ref=3c655234d15967738f95da696e3f938d4862dcf7) Source bullshitbench Original model label anthropic/claude-opus-4 Source version v2 Observed 2026-10-22T03:10:12.603Z Evidence SHA-256 `98b485e08764d1c97144bc4f7b28ced1a96d50850947c775870dfda0e5d749b5` Source locator `/rows/120` |  |  |  |

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Cite as: Claude Opus 4Default — Benchize, https://benchize.com/models/claude-opus-4-default (retrieved 2026-10-22)