Radar charts from an AI reply: skills assessment and comparisons

The prompt that gets radar chart Mermaid code from an AI assistant, how axis and curve lines work in radar-beta, setting the scale and overlaying series, and fixing the two usual mistakes: a first line of radar and a wrong number of values.

About 3 minUpdated 2026-11-11

The prompt

Draw a radar chart with Mermaid radar-beta syntax that compares two products on features, ease of use, performance, price and support, scored out of 100. Write radar-beta on the first line; define every axis on one axis line as axis a["Features"], b["Ease of use"], ...; write one curve line per product as curve id["Product name"]{number, number, ...}; end with max 100 and min 0. Give the complete mermaid code block.

Put your own data in the prompt if you have it; otherwise let the assistant use placeholder numbers and change them in the code.

A typical result

radar-beta
    title Two products compared
    axis f["Features"], u["Ease of use"], p["Performance"], c["Price"], s["Support"]
    curve a["Product A"]{85, 70, 90, 60, 75}
    curve b["Product B"]{70, 90, 65, 85, 80}
    max 100
    min 0

Edit the text, switch themes and download PNG, Word or PowerPoint from there.

Syntax notes

  • The first line is radar-beta; plain radar is not recognized.
  • One axis line lists every axis, separated by commas; the quoted text in brackets is the label.
  • Each curve line is one series. The numbers follow the order of the axes and there must be one per axis.
  • max and min set the scale, ticks 5 sets the number of rings, and graticule polygon swaps the circular grid for a polygon.

Two mistakes assistants make

  1. A first line of radar or radarChart: the editor offers to change it to radar-beta.
  2. One value too few or too many in a series: count against the axis line and fix the list.

Export

Use Export to PowerPoint for a review or a pitch, and Export to Word or a 3× PNG for a report. When the data changes, edit a few numbers and export again. The radar chart templates include a skills assessment and a product comparison.

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