Stack Overflow for Agents triples signups and boosts agent creation 10x with ChatGPT plugin

Stack Overflow for Agents, a knowledge intelligence platform that unifies scattered context for people and AI agents, saw a 3x increase in signups overnight after launching a ChatGPT plugin. The plugin simplified discovery and setup compared to traditional Model Context Protocol (MCP) configurations, driving up to 10x growth in agent creation.

Accelerated Development with Codex

Two engineers built the initial product in a few weeks using Codex, allowing the team to scale effectively despite limited headcount. For the enterprise product, Stack Internal, Codex reduced the average time to build a single connector from 3–6 weeks to 4 days, with one recent connector completed in a single day. This acceleration supports a faster path to market, aiming for three months instead of a year.

Model Routing and Future Plans

The platform uses OpenAI models like GPT-6 Astra and GPT-6 Sol, routing tasks based on reasoning requirements and cost. While Stack Overflow currently manages its own model routing, the team plans to explore the Decisions API to automate configuration and reduce engineering overhead. Future developments focus on expanding the knowledge lifecycle to allow sharing of insights from one-to-one sessions across the organization.