Unverified80% confidenceFactTime unknown

Codex基于GPT 5.5，上下文窗口约40万Token

1

Sources

80%

Confidence

Medium-term (~90 days)

Relevance

5/31/2026

First Seen

Valid until: 8/29/2026

Sources

Codex vs Claude Code实测对比：$20档位真实差距有多大

bilibili赋范AI课堂

Related Entities

Codexproduct GPT 5.5model

Related Claims

VerifiedCodex桌面端支持选择GPT-5.5模型80% similar UnverifiedGPT 5.6模型在API层面本身支持100万上下文，但Codex仍未向订阅用户开放全量额度80% similar Unverified有报告指出GPT-5.6在Codex中的上下文窗口可能为37.2万tokens，尚未获OpenAI官方确认80% similar VerifiedGPT 5.5支持百万Token上下文窗口，可同时处理约50万至70万词的代码或文档77% similar Unverified在Codex中可通过配置为GPT-5.6 Sol解锁100万token上下文窗口，添加model slug并将上下文窗口设为100万、auto-compact阈值设为90万即可手动启用76% similar

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