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How We Got an LLM to Draw Charts Without Ever Touching a Pixel
TL;DR: A team explains why they avoid letting LLMs draw charts directly and instead have the model generate Vega-Lite specifications for charts. This approach ensures verifiable data and clean separation between description and rendering.
The article describes LiveReview's approach to charting data-driven insights without letting LLMs touch pixels. Instead of prompting the model to draw images, they have the LLM generate Vega-Lite specifications that declaratively describe the chart. Vega-Lite handles rendering, ensuring accurate representation of numbers. They highlight the risk of image generators producing hallucinated data and emphasize a model that outputs chart definitions. The core idea is to describe the chart, not draw it, leveraging a formal chart grammar for reliability.
Question for the room: What chart-grammar or declarative approach have you used to separate data description from rendering in your LLM-enabled dashboards?
— via dev.to
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