OpenAI Open-Sources Codex Harness; Tax Pilot Cuts Prep Time by a Third

OpenAI open-sourced the Codex harness to help teams integrate AI agents into existing tools. Codex already powers Cisco's App Builder, and a tax-prep pilot processed 7,000 filings about a third faster.

2026-08-20 ~ 2026-08-20 · 3 related posts

• OpenAI releases open-source Codex harness to integrate agents into existing tools — OpenAIDevs · 2026-08-20
• Cisco adopts Codex SDK; tax prep system cuts processing time by one-third — OpenAIDevs · 2026-08-20
• Codex speeds up tax prep pilot by 30% — SIGKITTEN · 2026-08-20