Anthropic reports 83.5 points (0-100 scale with partial credit) for Claude Fable 5.2 on BenchCAD 2.1 at Max effort. Anthropic says BenchCAD scores hardware designs against reference geometry and circuits on a 0-100 scale.
Tasks: Hardware engineering; partial credit on a 0-100 scale.
Setting: Max effort, as stated in the chart description. Numeric budgets not stated.
Limits: Provider-reported by Anthropic in its launch announcement; not independently reproduced here. Anthropic points to the Fable 5.2 and Mythos 5.2 system card for methods; that card was not opened, so task subset, sample size, harness, prompts, trial counts and run dates are unverified. Results under the same benchmark name can be shown together as reported scores, but unmatched settings and missing methods rule out a controlled ranking. Points on a 0-100 partial-credit scale, not a pass rate.
Anthropic
