# pi

Databricks tested coding agents on day-to-day tasks from its multi-million-line codebase: same model, same reasoning strength, only the harness changed—and on some cases the per-task cost differed by more than 2× with quality held constant. Pi sent about one-third as much context per turn as the comparison baseline. Model and harness both have to count toward total engineering cost.

Flask creator Armin Ronacher explains why he uses Pi, Mario Zechner's minimal coding agent with four tools: Read, Write, Edit, Bash. Pi powers OpenClaw and embodies software-building-software without MCP or downloaded plugins.