Unverified50% confidenceTradeoffExact time
Moving retrieval up front into the system prompt increases the number of input tokens per call, thereby increasing cost, but it improves the determinism of memory use.
1
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50%
Confidence
Long-term
Relevance
10/18/2026
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Related Claims
UnverifiedReasoning content is often billed the same as regular text in terms of token counting, so retaining reasoning increases the number of tokens carried in requests and affects call costs.78% similarVerifiedToken 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.78% similarUnverifiedUnder the mechanism in which large models bill by input and output tokens, resending the full browsing history every day causes the input token cost to grow linearly with the number of days of use; having the client perform deduplication, aggregation, or incremental summarization can keep the input volume at a roughly constant level.76% similarUnverifiedBecause RAG-type applications have a larger number of input tokens, reducing the unit price of input tokens has a more pronounced cost optimization effect on RAG-type applications than on ordinary question-answering applications.72% similar
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