# Flint Enables Polished Charts from Simple Specs

> Source: <https://letsdatascience.com/news/flint-enables-polished-charts-from-simple-specs-f4600235>
> Published: 2026-07-08 16:00:00+00:00

For AI and data practitioners, an intermediate visualization language that encodes semantic meaning can make LLM- and agent-generated charts more reliable and human-editable. Per a Microsoft Research blog post published July 8, 2026, Microsoft Research and the project site introduce **Flint**, an open-source visualization intermediate language that lets AI agents generate polished charts from compact specs. The project includes the `flint-chart` library and a `flint-chart-mcp` server, according to the project documentation. The project site states Flint supports **46 chart types** and can compile a single spec to **Vega-Lite**, **Apache ECharts**, or **Chart.js**. The GitHub repository notes the project exposes **70+ semantic types** and lists **354** stars on the repo. Source material: Microsoft Research blog, the Flint project site, and the project GitHub repository.