Generating running routes with GPT-6 Astra and ChatGPT Work

Here's a neat thing I had ChatGPT Work with GPT 6 Astra (Max) do this morning: I live at <my address . Figure out 5K and 10K running routes from me that loop from my house. Use OSM data. It worked for 27 minutes and produced exactly what I'd asked for, as both an embedded visualization and downloadable GPX file and…

Simon Willison 2 min readOriginal

12th September 2026

Here’s a neat thing I had ChatGPT Work with GPT-6 Astra (Max) do this morning:

I live at <my address>. Figure out 5K and 10K running routes from me that loop from my house. Use OSM data.

It worked for 27 minutes and produced exactly what I’d asked for, as both an embedded visualization and downloadable GPX file and GeoJSON files. Here’s that 5K route:

Keep reading Simon Willison with Pro

This source is part of the Pro library. Unlock every premium source, AI translation and custom feeds.

SW

Originally published on

Simon Willison

Read original

Keep reading