Symbol k

The passage around this formula

Collect the five families’ engineering shape in one place, on the axes that generalise across them rather than the accuracy numbers that do not. A single latency model makes the difference between the first three rows and the last two concrete. Writing $L_{\text{enc}}$ for query encoding, and $L_{\text{retrieve}}^{(i)}$ and $L_{\text{LLM}}^{(i)}$ for the retrieval and generation cost of round i ,

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