[Guide] Codex can open 1M context window through configuration file, but the quota will be consumed faster

#Technical Tutorial Codex can open a 1M context window through the configuration file, which may improve efficiency in some scenarios, but the quota will be consumed faster. Codex technical manager Tibo has also opened the GPT-5.6 1M window for ChatGPT subscribers, which was previously only available on the API platform. However, Thibo emphasized that the current Codex 272K automatic compression is already the optimal configuration. If 1M is turned on, users will notice that the quota is consumed faster. Configuration method: https://ourl.co/126281