Chartography

Every result

• Claude Fable 5.273.4%Reported by the model's maker (Anthropic), Nov 9, 2026

  Anthropic reports 73.4% for Claude Fable 5.2 on Chartography without tools. Anthropic describes it as a test of reading charts and figures.

  Setting: Highest-available effort, per the table footnote; the effort level is not named for this row. Numeric reasoning and token budgets are 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. No Chartography version is stated.

  Anthropic

• Claude Fable 5.266.4%Reported by the model's maker (Anthropic), Nov 9, 2026

  Anthropic reports 66.4% for Claude Fable 5.2 on Chartography without tools at Medium effort. Anthropic says this beat Opus 5.5 at Max effort (64.4%) at under a tenth of the cost per task.

  Setting: Medium 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. No Chartography version is stated. Cost-per-task figures are not given in the text.

  Anthropic