Benchmarks / DeckBench / Wrenfield Borough Council

Measured by Spring Prompt

GPT-6.1 Sol: Library services: choosing how to save £350,000

For the council's cabinet (elected members), meeting in public. The decision it supports: which of three options to adopt to save £350,000 a year from libraries.

Verdict
Presentable
Deck rating
1,412
Slides
6 (brief: 5-8)
Design quality
75%
  1. Slide 1 of GPT-6.1 Sol's deck
    Slide 1Polished
  2. Slide 2 of GPT-6.1 Sol's deck
    Slide 2Acceptable The recommended option B has the same visual treatment as the other rows; highlighting it would make the table reinforce the takeaway more immediately.Large empty gap between the table and the bottom takeaway line leaves the lower half unbalanced
  3. Slide 3 of GPT-6.1 Sol's deck
    Slide 3Acceptable Legend is placed inside the plot area, tucked tight against the B bar labels (41%/38%); it would be cleaner above or outside the chartThe x-axis stops at 60%, causing the 71% bar to awkwardly spill past the end of the chart area.
  4. Slide 4 of GPT-6.1 Sol's deck
    Slide 4Acceptable The right-hand callout is text-heavy and extends well below the table, leaving the lower-left area noticeably empty.Short table leaves a large empty area beneath it on the left, unbalanced against the taller side panel
  5. Slide 5 of GPT-6.1 Sol's deck
    Slide 5Polished Review line at the bottom wraps with 'Lane?' alone on the second line and sits cramped against the source footer
  6. Slide 6 of GPT-6.1 Sol's deck
    Slide 6Polished The highlighted white box gives the review condition more visual weight than the decision itself (the 'shorter hours' line), which slightly muddles emphasis