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update pricing and differentiate output tokens in price calculation #18

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update pricing and differentiate output tokens in price calculation #18

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52 changes: 48 additions & 4 deletions src/sections/TokenViewer.tsx
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
import { Fragment, useState } from "react";
import { Fragment, useMemo, useState } from "react";
import { cn } from "~/utils/cn";

import BN from "bignumber.js";
Expand Down Expand Up @@ -29,11 +29,19 @@ const COLORS = [
const PRICING: Record<string, BN> = {
"gpt-4": BN("0.03").div(1000),
"gpt-4-1106-preview": BN("0.01").div(1000),
"gpt-4-32k": BN("0.03").div(1000),
"gpt-3.5-turbo": BN("0.0010").div(1000),
"gpt-4-32k": BN("0.06").div(1000),
"gpt-3.5-turbo": BN("0.0005").div(1000),
"gpt-3.5-instruct": BN("0.0015").div(1000),
};

const OUT_PRICING: Record<string, BN> = {
"gpt-4": BN("0.06").div(1000),
"gpt-4-1106-preview": BN("0.03").div(1000),
"gpt-4-32k": BN("0.12").div(1000),
"gpt-3.5-turbo": BN("0.0015").div(1000),
"gpt-3.5-instruct": BN("0.0020").div(1000),
};

function encodeWhitespace(str: string) {
let result = str;

Expand Down Expand Up @@ -62,6 +70,42 @@ export function TokenViewer(props: {
const tokenCount =
props.data?.reduce((memo, i) => memo + i.tokens.length, 0) ?? 0;
const pricing = props.model != null ? PRICING[props.model] : undefined;
const outPricing = props.model != null ? OUT_PRICING[props.model] : undefined;

const accuratePrice = useMemo(() => {
const dividedData: Array<
{ text: string; tokens: { id: number; idx: number }[] } | undefined
>[] = [[]];
for (
let segIdx = 0;
segIdx < (props.data !== undefined ? props.data.length : 0);
segIdx++
) {
if (props.data?.[segIdx]?.text === "<|im_start|>") {
dividedData.push([]);
}
if (props.data?.[segIdx] !== undefined) {
dividedData[dividedData.length - 1]?.push(props.data?.[segIdx]);
}
}

const divided = dividedData.filter(item => item.length !== 0);
const wentWrong = divided.some(
(item) =>
item?.[0]?.text !== "<|im_start|>"
);
if (wentWrong) {
return;
}
const finalPrice =
divided.reduce((accPrice, curDiv) => {
const divTokenCount =
curDiv?.flatMap(f => f ? [f] : []).reduce((memo, i) => memo + i.tokens.length, 0) ?? 0;
const finalPricing = (curDiv?.[1]?.text === "assistant") ? outPricing : pricing;
return accPrice.plus((finalPricing || BN("0")).multipliedBy(divTokenCount));
}, BN("0")) ?? 0;
return finalPrice;
}, [props.data, pricing, outPricing]);

const [showWhitespace, setShowWhitespace] = useState(false);

Expand All @@ -77,7 +121,7 @@ export function TokenViewer(props: {
<div className="flex-grow rounded-md border bg-slate-50 p-4 shadow-sm">
<p className="text-sm ">Price per prompt</p>
<p className="text-lg">
${pricing?.multipliedBy(tokenCount)?.toFixed()}
${accuratePrice?.toFixed() || pricing?.multipliedBy(tokenCount)?.toFixed()}
</p>
</div>
)}
Expand Down