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LLMs for Developers - Model Selection, Hallucinations, Agents, and AGI

JetBrains via YouTube

Overview

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Explore the complex landscape of Large Language Models in this comprehensive interview featuring Dr. Jodie Burchell, data scientist and developer advocate at JetBrains, as she breaks down critical considerations for developers choosing between ChatGPT, Claude, Gemini, and other AI models for their projects. Learn essential criteria for model selection including performance metrics, cost analysis, and use-case alignment to avoid wasting resources on inappropriate solutions. Discover the evolution from early NLP techniques through LSTMs to modern Transformers, understand the limitations of current benchmarking systems, and gain practical insights into handling hallucinations, implementing AI agents, and building reliable AI applications. Examine the trade-offs between self-hosting versus proprietary models, explore fine-tuning strategies using platforms like Hugging Face, and understand the real-world applications of RAG (Retrieval-Augmented Generation) systems. Address critical concerns around privacy, data security, and ethical considerations including copyright issues, environmental impact, and labor implications of AI development. Navigate the hype versus reality of "vibe coding," multi-agent applications, and the Model Control Protocol while considering the future of software development skills in an AI-augmented world. Engage with discussions on AGI timelines, the importance of maintaining fundamental programming knowledge, and practical strategies for building robust AI-powered applications through proper testing, A/B testing, and tracing methodologies.

Syllabus

00:00:00 Teaser
00:00:37 Intro
00:01:08 From PhD and academia to data science at JetBrains
00:02:31 Early NLP versus modern LLMs
00:04:46 From LSTMs to Transformers BERT and GPT
00:08:49 The DeepSeek surprise and model scaling limits
00:12:25 Benchmarks, assessments, and confusion for end users
00:17:18 Choosing models in practice
00:21:10 “Thinking” models and reasoning limits
00:23:48 Do you really need the newest model?
00:25:58 Hallucinations and how to handle them
00:28:30 Agents and RAG: real-world applications
00:32:55 Vibe coding: hype versus reality
00:37:46 What are AI agents? Tools, MCP, and multi-agent apps
00:43:01 Self-hosting versus proprietary models
00:45:20 Fine-tuning explained and Hugging Face
00:50:17 Building reliable AI apps tests, A/B, traces
00:55:33 Privacy, company data, and self-hosting concerns
00:58:37 Ethical issues: data sourcing and labor
01:04:23 Environmental costs and the push for smaller models
01:06:26 Juniors, skills, and the future of coding with AI
01:09:15 Learning fundamentals in the age of LLMs
01:13:24 AGI: definitions, timelines, and Jodie’s twenty euro bet
01:20:03 Rapid-fire questions: slang, food, and culture
01:25:47 Giveaway
01:26:26 Outro

Taught by

IntelliJ IDEA by JetBrains

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