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RubyLLM vs Langchainrb for Rails
RubyLLM is a model client with Rails generators. Langchainrb is retrieval plumbing. Pick by whether you query your own documents, not by provider count.
· JetThoughts TeamRuby LangChain Testing Guide 2025 | RSpec + WebMock
Test langchainrb code with RSpec and WebMock without calling OpenAI: stub the HTTP layer, check token counts, see which errors Faraday raises, and keep the gem from logging your API key.
How to Cut LLM Application Costs With Token Budgets
Where LLM spend actually goes: the fixed prompt you resend every call. Measure tokens from API usage, use prompt caching, batch what can wait, and cache identical requests.
LangChain Architecture for Production AI Agent Systems
Master LangChain architecture for production with Python. Complete guide with error handling, testing strategies, and working code examples for scalable AI agent systems.
LangChain Memory: Conversation History with Python
How to add memory to LangChain agents. Working Python examples for short-term, long-term, and entity memory. PostgreSQL and Redis persistence. Real production patterns.
· JetThoughts Team
LangGraph Tutorial: AI Agents as State Machines in Python
Complete LangGraph tutorial with working Python examples. Learn nodes, edges, checkpoints, human-in-the-loop, and map-reduce patterns. From first graph to production agent.
Taking LangChain and CrewAI Apps to Enterprise Production
Complete enterprise guide to scaling LangChain and CrewAI from prototype to production. Covers architecture patterns, security, compliance, monitoring, and real-world case study with 80% improvement metrics.
· JetThoughts Team
Testing and Monitoring LLM Applications in Production
How to test code that calls a language model: mock the client, check properties instead of exact strings, run a small eval set on every prompt change, and log tokens and timing for every call.
· JetThoughts TeamLangChain Python Tutorial: Complete Guide
Learn LangChain Python with this comprehensive tutorial. Step-by-step guide with Django and FastAPI integration, production patterns, and 15+ working code examples. Build your first LLM app today.
Getting Started with LangChain-Ruby: A Complete Guide
Learn how to build AI-powered applications with LangChain-Ruby. Complete guide with working code examples, Rails integration, and production best practices for junior Ruby developers.
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