Agents & InferenceSimon Willison

Generating running routes with GPT-6 Astra and ChatGPT Work

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Summary A

GPT-6 Astra autonomously generated precise 5K and 10K running routes using OpenStreetMap data in 27 minutes, including GPX and GeoJSON files, showcasing its ability to handle complex geospatial tasks end-to-end. This matters because it demonstrates LLMs can now perform detailed, production-ready workflows with minimal oversight, but the lack of transparency in its execution—like inaccessible code due to thread compaction—presents a risk for debugging and reproducibility in real-world deployments.

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