Expired50% confidenceFactExact time
In every conversation turn, all historical messages are re-sent to the model, meaning every piece of text in the context is billed again on every turn.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Codex vs Claude Code: The Truth Behind the 10x Bill Difference & a Practical Selection Guide
bilibili九天Hector课程拆解6/11/2026
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