OpenAI’s Codex Context Cut Puts Enterprise AI Coding Workflows on Notice

OpenAI reduced the default input context window for GPT-5.6 in Codex CLI from 372,000 to 272,000 tokens, a 27% cut. This change affects enterprise AI coding workflows. Developers noticed the change quickly, and it was discussed on GitHub, Reddit, and X. The impact is significant for those relying on Codex CLI. Consider updating workflows to accommodate the new context limit.