{"id":28174,"date":"2025-08-24T09:30:23","date_gmt":"2025-08-24T06:30:23","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/langchain-ile-claude-ve-titana-ilk-adim\/"},"modified":"2025-08-24T09:30:23","modified_gmt":"2025-08-24T06:30:23","slug":"langchain-ile-claude-ve-titana-ilk-adim","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/langchain-ile-claude-ve-titana-ilk-adim\/","title":{"rendered":"LangChain ile Claude ve Titan&#8217;a \u0130lk Ad\u0131m"},"content":{"rendered":"<p>LangChain ile Claude ve Titan&#039;a \u0130lk Ad\u0131m<\/p>\n<p>Yapay zeka d\u00fcnyas\u0131nda b\u00fcy\u00fck dil modelleri (LLM&#039;ler) giderek daha \u00f6nemli bir rol oynuyor.  Google&#039;\u0131n Titan&#039;\u0131 ve Anthropic&#039;in Claude&#039;u gibi g\u00fc\u00e7l\u00fc LLM&#039;leri etkili bir \u015fekilde kullanmak i\u00e7inse LangChain gibi ara\u00e7lara ihtiya\u00e7 duyuyoruz. Bu makalede, LangChain&#039;in temellerini \u00f6\u011frenecek, Claude ve Titan ile ilk sohbetinizi ger\u00e7ekle\u015ftirecek ve ileri d\u00fczey teknikleri ke\u015ffedeceksiniz.  LangChain&#039;in sundu\u011fu esneklik ve geni\u015f olanaklar sayesinde kendi uygulamalar\u0131n\u0131z\u0131 geli\u015ftirmek i\u00e7in sa\u011flam bir temel olu\u015fturacaks\u0131n\u0131z.<\/p>\n<h2>LangChain Nedir ve Neden \u00d6nemlidir?<\/h2>\n<p>LangChain, b\u00fcy\u00fck dil modelleri (LLM&#039;ler) ile etkile\u015fim kurmay\u0131 kolayla\u015ft\u0131ran g\u00fc\u00e7l\u00fc bir Python k\u00fct\u00fcphanesidir.  LLM&#039;ler, karma\u015f\u0131k g\u00f6revleri yerine getirmek i\u00e7in m\u00fckemmel olsa da, do\u011frudan kullan\u0131m\u0131 zor olabilir. LangChain, bu zorlu\u011fu ortadan kald\u0131rarak LLM&#039;leri uygulamalar\u0131n\u0131za entegre etmenizi kolayla\u015ft\u0131r\u0131r.  \u00d6rne\u011fin, veritabanlar\u0131yla entegre edilmi\u015f bir soru-cevap sistemi olu\u015fturmak veya  uzun belgelere dayal\u0131 \u00f6zetler olu\u015fturmak gibi i\u015flemleri LangChain ile  basit\u00e7e ger\u00e7ekle\u015ftirebilirsiniz.  Bu k\u00fct\u00fcphane, LLM&#039;lerin yeteneklerini daha da geni\u015fleterek, ger\u00e7ek d\u00fcnya sorunlar\u0131na \u00e7\u00f6z\u00fcm \u00fcretmeyi sa\u011flar.  LangChain&#039;in \u00f6nemi,  LLM&#039;leri eri\u015filebilir ve kullan\u0131\u015fl\u0131 hale getirmesinde yatmaktad\u0131r.  Ba\u015fka bir deyi\u015fle,  karma\u015f\u0131k kod yazmadan LLM&#039;lerin g\u00fcc\u00fcnden faydalanman\u0131za imkan tan\u0131r.<\/p>\n<h2>LangChain Kurulumu: \u0130lk Ad\u0131mlar<\/h2>\n<p>LangChain ile \u00e7al\u0131\u015fmaya ba\u015flamak i\u00e7in \u00f6ncelikle Python&#039;\u0131 sisteminize kurman\u0131z gerekiyor.  Ard\u0131ndan, pip paket y\u00f6neticisi kullanarak LangChain&#039;i ve gerekli olan di\u011fer k\u00fct\u00fcphaneleri kolayca kurabilirsiniz.  \u0130\u015fte ad\u0131m ad\u0131m kurulum s\u00fcreci:<\/p>\n<ol>\n<li><strong>Python&#039;\u0131 Kurun:<\/strong>  E\u011fer sisteminizde Python kurulu de\u011filse, Python resmi web sitesinden (https:\/\/www.python.org\/) en son s\u00fcr\u00fcm\u00fc indirip kurun.<\/li>\n<li><strong>pip&#039;i G\u00fcncelleyin:<\/strong>  Komut sat\u0131r\u0131na veya terminalinize <code>python -m pip install --upgrade pip<\/code> komutunu girerek pip paket y\u00f6neticisini g\u00fcncelleyin. Bu, olas\u0131 sorunlar\u0131 \u00f6nlemeye yard\u0131mc\u0131 olur.<\/li>\n<li><strong>LangChain&#039;i Kurun:<\/strong>  Son olarak, LangChain&#039;i ve gerekli olan k\u00fct\u00fcphaneleri kurmak i\u00e7in <code>pip install langchain openai<\/code> komutunu \u00e7al\u0131\u015ft\u0131r\u0131n.  <code>openai<\/code> k\u00fct\u00fcphanesi, OpenAI API&#039;si ile etkile\u015fim kurmak i\u00e7in gereklidir.  Di\u011fer LLM&#039;ler i\u00e7in farkl\u0131 k\u00fct\u00fcphaneler gerekebilir.<\/li>\n<\/ol>\n<p>Kurulum tamamland\u0131ktan sonra, LangChain&#039;in sa\u011flad\u0131\u011f\u0131 bir\u00e7ok i\u015flevi kullanmaya ba\u015flayabilirsiniz.  Unutmay\u0131n,  OpenAI API anahtar\u0131n\u0131z\u0131 do\u011fru \u015fekilde ayarlaman\u0131z gerekir.  Bu anahtar, OpenAI hizmetlerine eri\u015fim sa\u011flaman\u0131z i\u00e7in gereklidir.  Anahtar\u0131n\u0131z\u0131  <code>.env<\/code> dosyas\u0131na  <code>OPENAI_API_KEY=YOUR_API_KEY<\/code> \u015feklinde ekleyebilirsiniz.<\/p>\n<h2>Claude ve Titan ile \u0130lk Sohbet: Uygulamal\u0131 \u00d6rnek<\/h2>\n<p>\u015eimdi, LangChain&#039;i kullanarak Claude ve Titan ile basit bir sohbet uygulamas\u0131 olu\u015ftural\u0131m.  Bu \u00f6rnek, LangChain&#039;in temel i\u015flevlerini g\u00f6sterir ve daha karma\u015f\u0131k uygulamalar i\u00e7in sa\u011flam bir temel olu\u015fturur.  A\u015fa\u011f\u0131daki kod blo\u011fu, OpenAI&#039;nin  Claude ve Titan modellerini kullanarak basit bir soru-cevap sistemi olu\u015fturur:<\/p>\n<p><\/code><\/p>\n<pre><code class=\"language-plaintext\">python\nfrom langchain.chat_models import ChatOpenAI\nfrom langchain.prompts import ChatPromptTemplate\n\n# OpenAI API anahtar\u0131n\u0131z\u0131 .env dosyas\u0131na ekledi\u011finizden emin olun.\n\nchat = ChatOpenAI(temperature=0, model=\"gpt-3.5-turbo\") #Claude ve Titan i\u00e7in farkl\u0131 model adlar\u0131 kullanabilirsiniz.\n\ntemplate = \"\"\"Soru: {question}\nCevap:\"\"\"\nprompt = ChatPromptTemplate.from_template(template)\n\nquestion = \"T\u00fcrkiye&#039;nin ba\u015fkenti nedir?\"\ninput = prompt.format_messages(question=question)\noutput = chat(input)\n\nprint(output.content)<\/pre>\n<p><\/code><\/p>\n<p>Bu kod, \u00f6ncelikle OpenAI API&#039;sine ba\u011flan\u0131r ve ard\u0131ndan bir soru sorar ve cevab\u0131 yazd\u0131r\u0131r.  <code>temperature<\/code> parametresi, modelin ne kadar yarat\u0131c\u0131 olaca\u011f\u0131n\u0131 belirler.  0 de\u011feri, modelin en olas\u0131 cevab\u0131 vermesini sa\u011flar.  Bu \u00f6rnekte,  Claude veya Titan&#039;\u0131n yerine farkl\u0131 b\u00fcy\u00fck dil modelleri de kullanabilirsiniz.  Daha geli\u015fmi\u015f uygulamalar i\u00e7in, LangChain&#039;in di\u011fer \u00f6zelliklerini kullanarak sohbeti daha etkile\u015fimli hale getirebilirsiniz.  \u00d6rne\u011fin,  kullan\u0131c\u0131n\u0131n \u00f6nceki mesajlar\u0131n\u0131 hat\u0131rlayabilir ve daha ak\u0131c\u0131 bir sohbet deneyimi sunabilirsiniz.<\/p>\n<h2>LangChain&#039;de Bellek Y\u00f6netimi: Daha Ak\u0131c\u0131 Sohbetler<\/h2>\n<p>Basit bir soru-cevap sistemi yerine, daha ak\u0131c\u0131 ve ba\u011flam\u0131 koruyan bir sohbet uygulamas\u0131 olu\u015fturmak i\u00e7in LangChain&#039;in bellek y\u00f6netimi \u00f6zelliklerini kullanman\u0131z gerekir.  B\u00fcy\u00fck dil modellerinin, \u00f6nceki konu\u015fma ge\u00e7mi\u015fini hat\u0131rlamalar\u0131 ve bu ge\u00e7mi\u015fe g\u00f6re cevap vermeleri, sohbet deneyimini \u00f6nemli \u00f6l\u00e7\u00fcde iyile\u015ftirir.  LangChain,  <code>ConversationBufferMemory<\/code>  veya  <code>ConversationSummaryMemory<\/code>  gibi farkl\u0131 bellek mekanizmalar\u0131 sunar.  <code>ConversationBufferMemory<\/code>, t\u00fcm sohbet ge\u00e7mi\u015fini saklar,  <code>ConversationSummaryMemory<\/code> ise ge\u00e7mi\u015fi \u00f6zetleyerek bellek kullan\u0131m\u0131n\u0131 optimize eder.  Hangisini se\u00e7meniz, uygulaman\u0131z\u0131n gereksinimlerine ba\u011fl\u0131d\u0131r.  Uzun ve ayr\u0131nt\u0131l\u0131 sohbetler i\u00e7in, <code>ConversationSummaryMemory<\/code> daha verimli olabilir.<\/p>\n<h2>LangChain ile Veri Entegrasyonu: Ger\u00e7ek D\u00fcnya Senaryolar\u0131<\/h2>\n<p>LangChain&#039;in en g\u00fc\u00e7l\u00fc \u00f6zelliklerinden biri,  veritabanlar\u0131 ve di\u011fer veri kaynaklar\u0131yla kolayca entegre olabilmesidir.  Bu, LLM&#039;lerin ger\u00e7ek d\u00fcnya verilerine eri\u015fmesini ve daha bilgilendirici cevaplar \u00fcretmesini sa\u011flar.  \u00d6rne\u011fin,  bir \u015firketin m\u00fc\u015fteri hizmetleri departman\u0131,  LangChain kullanarak bir veritaban\u0131ndaki m\u00fc\u015fteri bilgilerine eri\u015fen bir chatbot geli\u015ftirebilir.  Bu chatbot,  m\u00fc\u015fteri sorular\u0131na daha h\u0131zl\u0131 ve do\u011fru cevaplar verebilir.  Ayr\u0131ca,  LangChain ile  birka\u00e7 farkl\u0131 veri kayna\u011f\u0131n\u0131 bir araya getirerek daha kapsaml\u0131 bir bilgi taban\u0131 olu\u015fturabilirsiniz.  \u00d6rne\u011fin,  bir e-ticaret sitesi,  \u00fcr\u00fcn katalogunu,  m\u00fc\u015fteri yorumlar\u0131n\u0131 ve  SSS b\u00f6l\u00fcm\u00fcn\u00fc birle\u015ftirerek daha kapsaml\u0131 bir \u00fcr\u00fcn bilgisi sa\u011flayabilir.<\/p>\n<h2>\u0130leri D\u00fczey Teknikler: LangChain&#039;i \u00d6zelle\u015ftirme<\/h2>\n<p>LangChain&#039;in temel i\u015flevlerini \u00f6\u011frendikten sonra,  sisteminizi kendi ihtiya\u00e7lar\u0131n\u0131za g\u00f6re \u00f6zelle\u015ftirebilirsiniz.  LangChain,  farkl\u0131 LLM&#039;leri,  prompts&#039;lar\u0131 ve  belle\u011fi birle\u015ftirerek karma\u015f\u0131k uygulamalar olu\u015fturman\u0131za olanak tan\u0131r.  \u00d6rne\u011fin,  birka\u00e7 farkl\u0131 LLM&#039;i kullanarak daha \u00e7e\u015fitli ve yarat\u0131c\u0131 cevaplar elde edebilirsiniz.  Ayr\u0131ca,  prompts&#039;lar\u0131 \u00f6zelle\u015ftirerek modelin davran\u0131\u015f\u0131n\u0131 ve \u00fcretti\u011fi metnin kalitesini kontrol edebilirsiniz.  LangChain&#039;in esnekli\u011fi,  sizin hayal g\u00fcc\u00fcn\u00fczle s\u0131n\u0131rl\u0131d\u0131r.  Daha karma\u015f\u0131k uygulamalar i\u00e7in,  LangChain&#039;in  <code>Agents<\/code>  konseptini inceleyebilirsiniz.  Agents, LLM&#039;lere  \u00e7e\u015fitli ara\u00e7lara eri\u015fim sa\u011flayarak daha karma\u015f\u0131k g\u00f6revleri yerine getirmelerine olanak tan\u0131r.<\/p>\n<h2>Performans Kar\u015f\u0131la\u015ft\u0131rmas\u0131: Farkl\u0131 Yakla\u015f\u0131mlar<\/h2>\n<p>| Y\u00f6ntem          | Avantajlar                                           | Dezavantajlar                                       |<br \/>\n|-----------------|-------------------------------------------------------|----------------------------------------------------|<br \/>\n| Tek LLM          | Basitlik, kolay kurulum                               | S\u0131n\u0131rl\u0131 yetenekler, tutars\u0131z sonu\u00e7lar                |<br \/>\n| Birden Fazla LLM | Daha \u00e7e\u015fitli ve yarat\u0131c\u0131 cevaplar, hata tolerans\u0131       | Karma\u015f\u0131kl\u0131k, performans sorunlar\u0131                     |<br \/>\n| Agent tabanl\u0131     | Karma\u015f\u0131k g\u00f6revleri yerine getirme yetene\u011fi             | Karma\u015f\u0131kl\u0131k, performans sorunlar\u0131, maliyet art\u0131\u015f\u0131      |<\/p>\n<p>Yukar\u0131daki tabloda farkl\u0131 yakla\u015f\u0131mlar\u0131n avantajlar\u0131 ve dezavantajlar\u0131 \u00f6zetlenmi\u015ftir.  Uygulaman\u0131z\u0131n gereksinimlerine g\u00f6re en uygun y\u00f6ntemi se\u00e7meniz \u00f6nemlidir.<\/p>\n<h2>G\u00fcvenlik Uyar\u0131lar\u0131<\/h2>\n<div class=\"warning\">\n  <strong>Dikkat:<\/strong>  LLM&#039;ler ile \u00e7al\u0131\u015f\u0131rken,  verilerinizin g\u00fcvenli\u011fini sa\u011flamak i\u00e7in gerekli \u00f6nlemleri almal\u0131s\u0131n\u0131z.  Hassas verileri do\u011frudan LLM&#039;lere g\u00f6ndermeyin ve  API anahtar\u0131n\u0131z\u0131 g\u00fcvenli bir \u015fekilde saklay\u0131n.  Ayr\u0131ca,  LLM&#039;lerin \u00fcretti\u011fi cevaplar\u0131 her zaman ele\u015ftirel bir bak\u0131\u015f a\u00e7\u0131s\u0131yla de\u011ferlendirmelisiniz.\n<\/div>\n<h2>Sonu\u00e7<\/h2>\n<p>Bu makalede, LangChain&#039;in temel \u00f6zelliklerini \u00f6\u011frendik ve Claude ve Titan ile basit bir sohbet uygulamas\u0131 olu\u015fturduk.  LangChain,  LLM&#039;leri uygulamalar\u0131n\u0131za entegre etmeyi kolayla\u015ft\u0131ran g\u00fc\u00e7l\u00fc ve esnek bir ara\u00e7t\u0131r.  Daha geli\u015fmi\u015f uygulamalar olu\u015fturmak i\u00e7in,  LangChain&#039;in ileri d\u00fczey \u00f6zelliklerini ke\u015ffetmeye devam edebilirsiniz.  Daha fazla bilgi i\u00e7in (https:\/\/fatihsoysal.com) inceleyebilirsiniz.<\/p>\n<h3>S\u0131k\u00e7a Sorulan Sorular<\/h3>\n<ul>\n<li><strong>LangChain&#039;i hangi i\u015fletim sistemlerinde kullanabilirim?<\/strong> LangChain, Python&#039;\u0131n \u00e7al\u0131\u015ft\u0131\u011f\u0131 t\u00fcm i\u015fletim sistemlerinde \u00e7al\u0131\u015f\u0131r (Windows, macOS, Linux).<\/li>\n<li><strong>LangChain \u00fccretsiz mi?<\/strong> LangChain a\u00e7\u0131k kaynak kodludur ve \u00fccretsiz olarak kullan\u0131labilir. Ancak, LLM&#039;ler i\u00e7in API \u00fccretleri \u00f6demeniz gerekebilir.<\/li>\n<li><strong>LangChain&#039;in \u00f6\u011frenme e\u011frisi nas\u0131l?<\/strong>  Temel seviye kullan\u0131m olduk\u00e7a kolayd\u0131r. Ancak, ileri d\u00fczey teknikleri \u00f6\u011frenmek biraz zaman alabilir.<\/li>\n<li><strong>LangChain hangi LLM&#039;leri destekliyor?<\/strong> LangChain bir\u00e7ok LLM&#039;i destekler; OpenAI, Hugging Face, Cohere vb. Desteklenen LLM&#039;ler s\u00fcrekli olarak g\u00fcncellenmektedir.<\/li>\n<li><strong>LangChain&#039;i hangi projelerde kullanabilirim?<\/strong>  Chatbotlar, soru-cevap sistemleri, \u00f6zetleme ara\u00e7lar\u0131, metin olu\u015fturma ara\u00e7lar\u0131 ve daha fazlas\u0131 i\u00e7in LangChain kullan\u0131labilir.<\/li>\n<\/ul>\n<p>Yazar: Fatih Soysal<\/p>\n<p><\/code><\/p>\n","protected":false},"excerpt":{"rendered":"LangChain ile Claude ve Titan&#039;a \u0130lk Ad\u0131m Yapay zeka d\u00fcnyas\u0131nda b\u00fcy\u00fck dil modelleri (LLM&#039;ler) giderek daha \u00f6nemli bir&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-28174","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>LangChain ile Claude ve Titan&#039;a \u0130lk Ad\u0131m<\/title>\n<meta name=\"description\" content=\"Yapay zeka d\u00fcnyas\u0131nda b\u00fcy\u00fck dil modelleri (LLM&#039;ler) giderek daha \u00f6nemli bir rol oynuyor. Google&#039;\u0131n Titan&#039;\u0131 ve Anthropic&#039;in Claude&#039;u gibi g\u00fc\u00e7l\u00fc LLM&#039;leri etkili bir \u015fekilde kullanmak i\u00e7inse LangChain gibi ara\u00e7lara ihtiya\u00e7 duyuyoruz. Bu makalede, LangChain&#039;in temellerini \u00f6\u011frenecek, Claude ve Titan ile ilk sohbetinizi ger\u00e7ekle\u015ftirecek ve ileri d\u00fczey teknikleri ke\u015ffedeceksiniz. LangChain&#039;in sundu\u011fu esneklik ve geni\u015f olanaklar sayesinde kendi uygulamalar\u0131n\u0131z\u0131 geli\u015ftirmek i\u00e7in sa\u011flam bir temel olu\u015fturacaks\u0131n\u0131z.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/langchain-ile-claude-ve-titana-ilk-adim\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LangChain ile Claude ve Titan&#039;a \u0130lk Ad\u0131m\" \/>\n<meta property=\"og:description\" content=\"Yapay zeka d\u00fcnyas\u0131nda b\u00fcy\u00fck dil modelleri (LLM&#039;ler) giderek daha \u00f6nemli bir rol oynuyor. Google&#039;\u0131n Titan&#039;\u0131 ve Anthropic&#039;in Claude&#039;u gibi g\u00fc\u00e7l\u00fc LLM&#039;leri etkili bir \u015fekilde kullanmak i\u00e7inse LangChain gibi ara\u00e7lara ihtiya\u00e7 duyuyoruz. Bu makalede, LangChain&#039;in temellerini \u00f6\u011frenecek, Claude ve Titan ile ilk sohbetinizi ger\u00e7ekle\u015ftirecek ve ileri d\u00fczey teknikleri ke\u015ffedeceksiniz. 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