つまった問題 langchain.jsでChatGPTAPIを利用したチャットボットを作る際に、トークンをかぞえたかったので以下のようにコールバックを設定していた。 import { OpenAI } from "@langchain/openai"; let totalCompletionTokens = 0; let totalPromptTokens = 0; let totalTokens = 0; const model = new OpenAI({ openAIApiKey: process.env.OPEN_AI_API_KEY, modelName: "gpt-3.5-turbo", callbacks: [ { handleLLMEnd(output) { console.log(JSON.stringify(output, null, 2)); totalComplet
![langchainでChatGPT APIの使用トークン(llmOutput)が返ってこない - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/37f07388b02829365ea3549bd6c58ee3da068662/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-9f5428127621718a910c8b63951390ad.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTkxNiZoPTMzNiZ0eHQ9bGFuZ2NoYWluJUUzJTgxJUE3Q2hhdEdQVCUyMEFQSSVFMyU4MSVBRSVFNCVCRCVCRiVFNyU5NCVBOCVFMyU4MyU4OCVFMyU4MyVCQyVFMyU4MiVBRiVFMyU4MyVCMyUyOGxsbU91dHB1dCUyOSVFMyU4MSU4QyVFOCVCRiU5NCVFMyU4MSVBMyVFMyU4MSVBNiVFMyU4MSU5MyVFMyU4MSVBQSVFMyU4MSU4NCZ0eHQtY29sb3I9JTIzMjEyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTU2JnR4dC1jbGlwPWVsbGlwc2lzJnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnM9MjU0N2MzMzQzZWEwYmI5ZWRlNmQ1YzE3YjlmNjMzNTc%26mark-x%3D142%26mark-y%3D112%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTcxNiZ0eHQ9JTQwc2FuYV9idW5nYWwmdHh0LWNvbG9yPSUyMzIxMjEyMSZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT0zMiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZzPTY1YTI4YmIzYzQyZWE2YmJiMjgxNzI3M2IwYmQ1NjFm%26blend-x%3D142%26blend-y%3D491%26blend-mode%3Dnormal%26s%3Dbe51aa4720f8275944b73fa43bade6bb)