GPT5.1CodexMax is more token-saving than the old codex

OpenAI Launches GPT-5.1-Codex-Max: A New Generation of Cutting-Edge Agent Coding Models on Codex

"Meet GPT-5.1-Codex-Max, our latest frontier agentic coding model, available in Codex starting today." Officially, it is positioned as a "cutting-edge...