Unverified50% confidenceCautionExact time
Switching models mid-session breaks the cache, causing the entire conversation to be reprocessed at full price, making it one of the most expensive operations.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/16/2026
First Seen
Valid until: 12/15/2026
Sources
Related Entities
Related Claims
UnverifiedInput tokens and output tokens are typically priced differently, and in multi-turn conversations, repeatedly passing in historical messages causes costs to accumulate linearly with conversation depth69% similarUnverifiedToken billing is calculated based on the total volume of input and output; the longer a conversation, the more each call pays for an increasingly bloated history.64% similarUnverifiedAccording to community benchmarks, in complex sessions where the context has not been cleared, a single task investigation can consume up to 500,000 tokens, generating 4–6 times the overhead compared to short sessions used out of the box.64% similarUnverifiedCodex在Agent多轮对话中会大量复用系统提示和代码上下文，缓存命中率远超普通聊天场景，是折算价格低廉的关键原因64% similar
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