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33 changes: 30 additions & 3 deletions src/app/api/agent/route.ts
Original file line number Diff line number Diff line change
Expand Up @@ -26,19 +26,46 @@ export async function POST(req: NextRequest) {
// const anthropic = createAnthropic({ apiKey: process.env.ANTROPIC_API_KEY! })
const openai = createOpenAI({ apiKey: effectiveApiKey })

const COST = { // per million tokens in USD
input: 30,
output: 60,
}

const result = streamText({
// model: anthropic('claude-sonnet-4-20250514'
model: openai('gpt-4'),
messages: convertToModelMessages(messages),
messages: convertToModelMessages(messages),

onError: (e => {
console.log("❌❌❌❌ Error in agent: ", e)
}),

onFinish: (e => {
console.log("✅✅✅✅ Agent finished: ", e)
// console.log("✅✅✅✅ Agent finished: ", e)
// finish reason
console.log("✅✅✅✅ Agent finished reason: ", e.finishReason)
// console.log("✅✅✅✅ Agent finished reason: ", e.finishReason)

console.log("--------------------------------")
console.log("USAGE DETAILS" + " - " + e.providerMetadata)
console.log("--------------------------------")
console.log("\n")

console.log("INPUT TOKENS: ", e.usage?.inputTokens)
console.log("OUTPUT TOKENS: ", e.usage?.outputTokens)
console.log("TOTAL TOKENS: ", e.usage?.totalTokens)
console.log("REASONING TOKENS: ", e.usage?.reasoningTokens)
console.log("CACHED INPUT TOKENS: ", e.usage?.cachedInputTokens)
console.log("\n")
console.log("--------------------------------")
console.log("COST DETAILS")
console.log("--------------------------------")
console.log("INPUT COST: ", e.usage?.inputTokens ? (e.usage?.inputTokens / 1000000) * COST.input : 0)
console.log("OUTPUT COST: ", e.usage?.outputTokens ? (e.usage?.outputTokens / 1000000) * COST.output : 0)
console.log("TOTAL COST: ", (e.usage!.inputTokens! / 1000000) * COST.input + (e.usage!.outputTokens! / 1000000) * COST.output)

console.log("\n")
console.log("--------------------------------")
console.log("--------------------------------")
}),

// system: `Answer in short and concise sentences.`,
Expand Down