OpenAI's agent platform is quietly reshaping how enterprises build software

A year into general availability, autonomous agent workflows are moving from demos into production stacks at Fortune 500s.

By Amina Yusuf

Senior AI Correspondent

Monday, July 6, 2026 8 min read

For the past year, OpenAI's agent SDK has moved from novelty to load-bearing infrastructure inside dozens of Fortune 500 engineering orgs.

The shift is subtle but structural: teams are no longer wrapping large language models with brittle prompt chains. They are orchestrating long-running, tool-using workflows that reason about their own progress.

The result is a new class of application — one that looks more like a colleague than a script.

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