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Advanced RAG Patterns

Go beyond naive RAG - master query transformation, HyDE, multi-query retrieval, Self-RAG, Corrective RAG, and iterative retrieval patterns for complex questions.

Agent Evaluation

Measuring LLM agent performance through trajectory analysis, benchmark suites, LLM-as-judge, failure taxonomies, and production monitoring strategies.

Agent Safety and Guardrails

Implementing defense-in-depth safety for production LLM agents - prompt injection defense, input/output guardrails, tool sandboxing, HITL confirmation, and audit logging.

Agentic RAG

Build agents that control their own retrieval - multi-step reasoning, router agents, ReAct loops, LangGraph stateful pipelines, and production patterns for agentic retrieval systems.

AI Safety Evaluations

Safety benchmarks, capability evaluations, LLM judges, uplift assessments, and how labs like Anthropic use evaluation-gated deployment through Responsible Scaling Policies.

Attention Is All You Need

The 2017 Vaswani et al. paper that replaced recurrent networks with pure attention - and why it changed everything.

Audio-Language Models

How modern AI systems process speech and audio - from Whisper's spectrogram-based ASR to end-to-end audio understanding in GPT-4o and Gemini.

Autoregressive Decoding

Understand how LLMs generate tokens one at a time, why decoding is memory-bandwidth bound, and how to reason about inference latency with the roofline model.

Benchmarks: MMLU, HumanEval, and HELM

Navigate the LLM benchmark ecosystem - what each benchmark actually measures, saturation, contamination, and how to build benchmarks that can't be gamed.

Caching Strategies

Four caching layers for LLM applications - exact match, semantic similarity, provider prefix caching, and KV cache - with implementation patterns and production tradeoffs.

Calling LLM APIs

Production patterns for calling LLM APIs - authentication, retry logic, rate limiting, error handling, async calls, and the Anthropic and OpenAI Python SDKs.

Case Studies: Production LLM Systems

Five detailed production LLM architectures - GitHub Copilot, Notion AI, customer support bots, enterprise RAG, and code review agents - with real architecture decisions, scale numbers, and lessons learned.

Causal Language Modeling and GPT

Learn how GPT-style autoregressive models work, the evolution from GPT-1 to GPT-4, sampling strategies, and why causal LM became the dominant paradigm for LLMs.

Chain-of-Thought Prompting

Learn how to unlock multi-step reasoning in LLMs by making them think out loud - and why this simple technique dramatically improves accuracy on complex tasks.

CLIP and Contrastive Learning

How CLIP uses contrastive learning on 400M image-text pairs to build a shared semantic embedding space - enabling zero-shot classification without labeled data.

Code and Math Specialized Models

How domain-specific pre-training and fine-tuning on code and math data produces models that outperform general LLMs on programming and reasoning tasks - and when to use them in production.

Constitutional AI

How Anthropic replaced human feedback with AI feedback guided by explicit principles - the Constitutional AI technique, RLAIF, and how it enables scalable alignment.

Constrained Decoding - How It Works

The mathematics of constrained decoding - finite-state machines, token masking, context-free grammars, and how the Outlines library achieves guaranteed JSON schema conformance at generation time.

Context Compression Techniques

How LLMLingua, AutoCompressors, GIST tokens, and selective compression reduce long contexts to fewer tokens while preserving the information needed to answer queries.

Context Window Management

Engineering strategies for managing context windows in production LLM applications - history truncation, compression, RAG ordering, and prompt caching design.

Continuous Batching

Learn how continuous batching eliminates GPU idle time by replacing finished sequences immediately rather than waiting for the longest request in a batch to complete.

DARE - Delta Weight Sparsification

How DARE randomly drops delta weights and rescales the remainder to dramatically reduce interference when merging multiple fine-tuned models.

DeepSeek MoE Architecture

DeepSeek's innovations in mixture of experts - fine-grained experts, shared experts, DeepSeek-V2 and V3, multi-token prediction, and training for $6M.

DeepSeek-R1 - Open Source Reasoning

How DeepSeek built an open-weights reasoning model using pure RL with GRPO, the R1-Zero experiment, distillation into smaller models, and what open-source reasoning means for the research community.

Diffusion Models

How denoising diffusion models learn to reverse a Gaussian noise process to generate high-quality images from text prompts.

Do LLMs Benefit From Their Own Words?

Multi-turn interactions with large language models typically retain the assistant's own past responses in the conversation history. In this work, we rev...

Document Chunking Strategies

Master the art and science of splitting documents into chunks that maximize retrieval precision - the most underestimated decision in RAG system design.

DPO and Modern Alignment Techniques

Direct Preference Optimization and its successors - how DPO eliminates the need for a separate reward model and RL training, plus IPO, KTO, SimPO, and ORPO.

DPO: Direct Preference Optimization

Master DPO - the elegant insight that you can optimize LLMs for human preferences without training a reward model or running RL, derived directly from the optimal RLHF policy.

Embedding Models - The Landscape

A comprehensive survey of the embedding model ecosystem - SBERT, contrastive learning, SimCSE, E5, BGE, GTE, OpenAI, Voyage AI, Cohere, and the MTEB leaderboard.

Embedding Models Deep Dive

Master embedding model selection for retrieval - MTEB benchmarks, model families, Matryoshka embeddings, bi-encoders vs cross-encoders, and fine-tuning strategies.

Embedding Quantization

Reducing embedding storage and search costs - float32 to float16, int8, and binary quantization, Hamming distance search, the rescoring trick, and implementation with FAISS and Qdrant.

Embedding Spaces

How token embeddings form a dense vector space that captures semantic meaning - geometry, anisotropy, weight tying, and visualization.

Embeddings in Production

Build, deploy, and operate production-grade embedding pipelines - caching, incremental indexing, staleness management, vector DB selection, and cost optimization at scale.

EU AI Act and Global AI Regulation

The EU AI Act, US executive orders, UK AI policy, China AI regulations, and practical compliance implications for AI engineers building and deploying language models.

Evaluating Embedding Models

MTEB benchmark deep dive, nDCG@10, Recall@K, MRR, MAP, building domain-specific evaluation sets, running MTEB locally, and avoiding the contamination problem.

Evaluating Reasoning Models

The benchmark landscape for reasoning models - AIME, MATH-500, Codeforces, ARC-AGI, GPQA Diamond, process vs. outcome evaluation, and contamination concerns.

Feed-Forward Layers

The role of position-wise feed-forward networks in transformers - from the basic FFN to SwiGLU and Mixture of Experts.

Few-Shot Prompting

Master in-context learning by providing carefully selected examples that demonstrate the exact behavior you want - without any model fine-tuning.

Full Fine-Tuning vs PEFT: Decision Framework

A practical decision framework for choosing between full fine-tuning, LoRA, QLoRA, prompt tuning, and other PEFT methods based on your model size, data, and quality requirements.

Graph RAG

Master Microsoft's Graph RAG - build knowledge graphs from documents, use community detection for global queries, and understand when graph structure beats flat vector search.

Guardrails and Safety Systems

Build layered defense-in-depth safety systems for LLM applications - input filtering, toxicity detection, PII redaction, prompt injection defense, output validation, and human review escalation.

HuggingFace Hub and Model Cards

Master the HuggingFace Hub as your primary interface for finding, evaluating, and deploying open-source models. Learn to read model cards, use the Hub API, and navigate 800k+ models efficiently.

Human Evaluation

Design rigorous human evaluation studies for LLMs - from annotation protocols to inter-annotator agreement to Chatbot Arena methodology.

Hybrid Architectures - Jamba and Beyond

How combining attention and Mamba layers creates models that outperform pure architectures - Jamba's design, the attention-to-Mamba ratio, MoE integration, and the emerging hybrid landscape.

Hybrid Search: Dense and Sparse

Combine BM25 sparse retrieval with dense vector search for best-of-both-worlds performance - understand SPLADE, fusion methods, and when hybrid beats pure dense.

Inference Cost Optimization

Learn how to systematically reduce LLM inference costs using model selection, quantization, caching, request routing, prompt compression, and infrastructure strategies.

Inference Optimization for MoE Models

Production techniques for serving MoE models efficiently - expert caching, CPU offloading, vLLM support, tensor vs. expert parallelism, batch size sensitivity, and quantization strategies.

Instruction Tuning

How instruction tuning transforms base LLMs into general-purpose assistants that can follow diverse instructions, reason step by step, and generalize to new tasks.

Instructor - Structured Outputs with Pydantic

A complete guide to Jason Liu's Instructor library - Pydantic-based structured extraction, automatic retry on validation failure, multi-provider support, streaming, and production extraction patterns.

Jailbreaks and Adversarial Prompts

How safety training gets bypassed - jailbreak taxonomy, GCG attacks, many-shot jailbreaking, prompt injection, defenses, and why the arms race is hard to win.

JSON Mode and Tool/Function Schemas

A complete guide to native JSON mode, OpenAI Structured Outputs, tool calling for structured data, Anthropic tool use, parallel tool calls, and schema design best practices.

KV Cache

Learn how the key-value cache eliminates redundant attention computation in LLM inference, and how PagedAttention solves the memory fragmentation problem.

LangChain Deep Dive

A thorough guide to LangChain's core abstractions, LCEL composable pipelines, LangGraph stateful workflows, LangSmith observability, and when to use LangChain vs direct API calls.

Language Modeling Objectives

Learn the training objectives that teach LLMs to understand language - causal language modeling, masked language modeling, cross-entropy loss, and perplexity.

Latency and Cost Tradeoffs

How to decompose LLM latency and cost, choose the right optimization strategies, and define SLOs that balance quality, speed, and budget.

Limitations of Attention at Scale

Why the quadratic complexity of self-attention creates real production bottlenecks - memory, latency, and cost - and why sparse attention approximations only partially solve the problem.

Linear Interpolation and Model Soup

How weight averaging of fine-tuned models produces better, more robust models than any individual fine-tune - and the task arithmetic framework for composing capabilities.

LLaMA Family Architecture

A deep dive into Meta's LLaMA model family - from LLaMA 1 through LLaMA 3.3 - covering RoPE embeddings, SwiGLU activation, RMSNorm, grouped query attention, and when to choose each variant.

LlamaIndex Deep Dive

A comprehensive guide to LlamaIndex's data-centric architecture - indices, query engines, workflows, multi-document agents, and how it compares to LangChain for RAG applications.

LLM Gateway and Routing

Design and operate an LLM gateway - unified API, model routing, circuit breakers, budget enforcement, and fallback chains - using LiteLLM and custom routing logic.

LLM Product Architecture

The three fundamental LLM product patterns - chat, workflow automation, and autonomous agents - and how to design the production service graph for each.

LLM-as-Judge

Use powerful LLMs to automatically evaluate other models - with position bias mitigation, CoT judging, and cost analysis.

LLMs - Engineering Track

A structured, production-grade LLM curriculum - from transformer architecture to alignment and safety. 17 modules covering every layer of the LLM stack.

LMQL and Guidance - Programmatic LLM Control

How Microsoft Guidance and LMQL extend structured generation to full programmatic control - interleaving generation with code, SQL-like constraints, token healing, and when each tool wins over Outlines and Instructor.

LoRA: Low-Rank Adaptation

Master LoRA - the parameter-efficient fine-tuning method that adds only 0.3% of parameters to GPT-3 while matching full fine-tuning quality, making LLM fine-tuning feasible on a single GPU.

Lost in the Middle - How LLMs Use Long Contexts

The empirical finding that LLMs reliably recall information at the beginning and end of long contexts but miss information in the middle, and strategies to mitigate this U-shaped performance degradation.

Mamba - Selective State Space Models

How Mamba's input-dependent SSM parameters, hardware-aware parallel scan, and selective gating mechanism achieved linear-time sequence modeling competitive with transformers.

Mamba vs Transformer - When Each Wins

A rigorous benchmark comparison: perplexity, throughput, recall tasks, in-context learning, and the fundamental trade-off between compressed state and full context access.

Masked Language Modeling and BERT

Understand how BERT learns bidirectional language representations using masked language modeling, its architecture, and how to fine-tune it for downstream tasks.

Matryoshka Representation Learning (MRL)

Nested embeddings where any prefix of dimensions is informative - training MRL, adaptive retrieval, 10x FLOP reduction, and how OpenAI's text-embedding-3 uses MRL internally.

MergeKit - The Practical Toolkit

How to use arcee-ai/mergekit to merge language models with YAML configuration, CPU-compatible layer-by-layer processing, and automated HuggingFace Hub upload.

Mistral and Mixtral Architecture

Mistral 7B's sliding window attention and grouped query attention innovations, and Mixtral 8x7B's Mixture of Experts design - sparse routing, expert selection, and why MoE delivers 70B quality at 13B active parameter cost.

Mixtral 8x7B - Architecture Deep Dive

Mistral AI's Mixtral 8x7B architecture - 8 experts with top-2 routing, sliding window attention, multilingual training, performance vs. Llama 2 70B, and serving requirements.

Mixture of Experts Architecture

The architecture of sparse MoE models - how expert networks replace dense FFN layers, top-k routing, and how parameter count relates to active compute.

Model Licensing and Compliance

Open-source model licenses are not all the same. Learn Apache 2.0, LLaMA Community, RAIL, and custom licenses - what you can and cannot do in production, and how to build a compliance workflow.

Modern Alignment Techniques

Survey the post-RLHF alignment landscape - RLAIF, Constitutional AI, rejection sampling fine-tuning, iterative DPO, process reward models, and the open questions shaping the next generation of aligned models.

Module 03: Prompt Engineering

Master the art and science of communicating with large language models - from basic zero-shot instructions to automated prompt optimization with DSPy.

Module 04: RAG Systems

Master Retrieval-Augmented Generation - the dominant pattern for grounding LLMs in external knowledge at production scale.

Module 08: Multimodal Models

Understanding how modern AI systems process images, audio, and text together - from CLIP to diffusion to production pipelines.

Module 10: Reasoning Models

How modern LLMs learn to think - test-time compute, chain-of-thought, process reward models, and the architectures behind o1, o3, and DeepSeek-R1.

Module 11: Mixture of Experts

How sparse MoE models achieve massive capacity at lower compute cost - routing mechanisms, load balancing, Mixtral, and DeepSeek's innovations.

Module 12: State Space Models

A complete map of State Space Models - from the quadratic attention bottleneck to Mamba's selective recurrence, hybrid architectures, and production deployment.

Module 13: Structured Generation

A complete map of structured generation - from the reliability problem with free-text LLM output to constrained decoding, Outlines, Instructor, JSON mode, and production-grade extraction pipelines.

Module 15 Overview - Long Context Strategies

How modern LLMs handle extremely long inputs - from the fundamental O(n²) attention problem to RoPE scaling, context compression, and production engineering for 128K+ context windows.

Module 16 - Alignment and Safety

A complete guide to AI alignment, RLHF, Constitutional AI, DPO, red teaming, jailbreaks, safety evaluations, and the global regulatory landscape.

Module 17 - Embeddings Engineering

A complete guide to embeddings - models, evaluation (MTEB), fine-tuning, Matryoshka embeddings, quantization, multimodal embeddings, and production pipelines.

Monte Carlo Tree Search for LLM Reasoning

Adapting MCTS to language model reasoning - selection, expansion, simulation, backpropagation over reasoning steps, AlphaCode 2, Tree-of-Thought, and production trade-offs.

Multi-Agent Architectures

Building systems where multiple specialized LLM agents collaborate through orchestrator-worker, pipeline, and peer-to-peer patterns using LangGraph and CrewAI.

Multi-Head Attention

How multi-head attention enables transformers to jointly attend to information from multiple representation subspaces simultaneously.

Multimodal Embeddings

CLIP, SigLIP, ImageBind, ColPali, and CLAP - embedding images, text, audio, and documents in shared vector spaces for cross-modal search and zero-shot classification.

Multimodal Open Source Models

How open-source vision-language models work - from CLIP vision encoders and projection layers to LLaVA, InternVL2, and LLaMA 3.2 Vision - and how to deploy them for document understanding, OCR, and visual reasoning in production.

Multimodal RAG

How to build retrieval-augmented generation systems that can retrieve and reason over images, PDFs with figures, slides, and mixed-media documents.

Observability for LLM Apps

Build production observability for LLM applications - distributed tracing, quality metrics, cost attribution, prompt versioning, and drift detection using LangSmith, Langfuse, and Helicone.

Open Source Models

Run, fine-tune, quantize, evaluate, and deploy open source LLMs in production - the complete hands-on guide for engineers who want to own their models.

Outlines - Grammar-Constrained Generation

A complete guide to the Outlines library - Pydantic schema to FSM, regex constraints, JSON schema constraints, vLLM integration, and production deployment patterns with guaranteed output conformance.

Phi and Small Language Models

Microsoft Phi model family - textbook quality data hypothesis, how 1-4B models can match much larger ones on reasoning tasks, and the design principles behind efficient small language models.

Planning and Reasoning

How LLM agents handle complex multi-step tasks through plan-and-execute, hierarchical planning, self-reflection, and LangGraph-based workflows.

Positional Encoding

How positional encodings inject sequence order information into transformers - from sinusoidal to RoPE.

Pretraining at Scale

The infrastructure, parallelism strategies, memory optimizations, and training data choices required to pretrain large language models on thousands of GPUs.

Process Reward Models (PRMs)

How process reward models provide step-level supervision for reasoning - the Lightman et al. 2023 paper, Math-Shepherd, using PRMs for search, and their limitations.

Production Monitoring for LLMs

Build a comprehensive production monitoring stack for LLMs - latency, cost, quality drift, safety, and observability platforms compared.

Production Multimodal Systems

Build and operate multimodal AI pipelines at production scale - image preprocessing, cost control, VLM hallucination mitigation, caching, security, and observability for vision-language workloads.

Prompt Injection and Security

Understand how prompt injection attacks work, why they're hard to defend against, and how to build LLM systems that are resistant to manipulation.

Prompt Optimization and DSPy

Move beyond manual prompt engineering to automated, evaluation-driven optimization - using APE, OPRO, and DSPy to build LLM pipelines that improve themselves.

Prompt Templates in Python

Building maintainable prompt systems in Python - template engines, versioning, testing prompts, few-shot construction, and prompt injection defense.

QLoRA: Quantized Low-Rank Adaptation

Learn how QLoRA combines 4-bit quantization with LoRA to fine-tune 65B parameter models on a single consumer GPU, using NF4 quantization, double quantization, and paged optimizers.

Quantization: INT8 and INT4

Master LLM quantization techniques - from LLM.int8() to GPTQ and AWQ - to run large models on commodity hardware without unacceptable quality loss.

Qwen, DeepSeek, and International Models

Alibaba Qwen and DeepSeek architectural innovations - MLA attention, DeepSeekMoE, multi-token prediction, and how Chinese labs are advancing open-source LLM research.

RAG Evaluation

Build rigorous RAG evaluation with RAGAS, TruLens, LLM-as-judge, golden datasets, and production monitoring - measure faithfulness, relevance, and groundedness.

RAG Evaluation Metrics

Evaluate RAG systems with precision - the RAG triad, RAGAS framework, golden datasets, and retrieval metrics for production pipelines.

RAG vs Long Context - When to Use Each

A rigorous cost, latency, and accuracy comparison of retrieval-augmented generation versus long-context stuffing, with decision frameworks for production use cases.

ReAct Agent Pattern

Building LLM agents that interleave reasoning traces and actions in a ReAct loop to solve multi-step tasks with tool grounding.

ReAct Pattern

Learn how to build LLM agents that reason and act by interleaving thought and tool calls - the architectural pattern behind every modern AI assistant.

Red Teaming LLMs

Systematic adversarial evaluation of language models - manual red teaming, automated red teaming with LLMs, failure taxonomies, and building a production red team process.

Reranking

Master the two-stage retrieval-reranking architecture - cross-encoders, ColBERT, LLM-as-reranker, Reciprocal Rank Fusion, and production latency budgets.

Research Roadmap: RLHF & Alignment

From InstructGPT to DPO to ORPO. Read the 7 most important alignment papers in order — understanding how LLMs are made to follow human intent.

Retrieval Algorithms and ANN

Master the approximate nearest neighbor algorithms powering vector search - HNSW, IVF, IVF-PQ, ScaNN, and DiskANN with parameter tuning and recall-latency trade-offs.

RLHF Deep Dive

A complete technical walkthrough of Reinforcement Learning from Human Feedback - the three-phase pipeline, reward models, PPO, KL penalty, and the limitations that led to newer approaches.

RLHF: Reinforcement Learning from Human Feedback

Understand how RLHF aligns LLMs with human preferences through three phases - SFT, reward model training, and PPO - and why it produced InstructGPT's surprising result that smaller aligned models beat larger unaligned ones.

RoPE and ALiBi - Positional Encoding for Long Context

How Rotary Position Embedding encodes relative positions through complex-plane rotations, why ALiBi achieves length extrapolation with linear biases, and why RoPE became the dominant approach for long-context models.

Safety and Bias Evaluation

Evaluate LLMs for harmful outputs, social bias, hallucination, and jailbreak vulnerability - including red teaming methodology and production monitoring.

Scaling Laws

Empirical power-law relationships between LLM performance and compute, data, and parameters - from Kaplan (2020) to Chinchilla (2022) and beyond.

Self-Attention Mechanism

How self-attention computes query, key, and value interactions to capture long-range dependencies between tokens.

Self-Distilled RLVR

On-policy distillation (OPD) has become a popular training paradigm in the LLM community. This paradigm selects a larger model as the teacher to provide...

Semantic Invariance in Agentic AI

Large Language Models (LLMs) increasingly serve as autonomous reasoning agents in decision support, scientific problem-solving, and multi-agent coordina...

SLERP - Spherical Linear Interpolation

How spherical linear interpolation provides smoother, geometrically correct blending between two model weight configurations than simple linear averaging.

Sparse vs Dense Models - Trade-offs

Why MoE gives more capacity per FLOP than dense models, the memory vs. compute trade-off, training efficiency, inference complexity, and when to choose each architecture.

Speculative Decoding

Learn how speculative decoding uses a small draft model to generate tokens that a large target model verifies in parallel, achieving 2-3x speedup with no quality loss.

State Space Model Foundations

How control theory's state space models became a competitive sequence modeling architecture - continuous-time SSMs, the S4 paper, HiPPO initialization, and the convolutional/recurrent duality.

Streaming LLM Responses

Streaming LLM output in Python - server-sent events, async generators, FastAPI streaming endpoints, and building real-time chat UIs.

Structured Generation in Production

Production-grade architecture for structured generation pipelines - reliability stacks, schema versioning, monitoring, async batching, caching, edge case handling, and complete reference implementations.

Structured Output and JSON Mode

Reliably extract structured data from LLMs using JSON mode, function calling, Pydantic validation, and constrained decoding - the backbone of production LLM pipelines.

Supervised Fine-Tuning

Learn how to adapt pretrained LLMs to specific tasks through supervised fine-tuning - data preparation, hyperparameters, catastrophic forgetting, and evaluation.

System Prompts and Context Design

Master the architecture of LLM conversations - how to design system prompts, manage context windows, and build production-grade context management systems.

Tensor and Pipeline Parallelism

Learn how tensor parallelism splits weight matrices across GPUs and pipeline parallelism splits model layers, enabling inference and training of models too large for a single GPU.

Test-Time Compute - Scaling at Inference

The paradigm shift from training-time scaling to inference-time scaling - best-of-N sampling, majority voting, and how spending more compute at inference improves reasoning quality.

The Alignment Problem

Why making AI systems do what we actually want is harder than it looks - the specification problem, Goodhart's Law, reward hacking, and outer vs inner alignment.

Tokenization Deep Dive

How tokenizers convert raw text to token IDs - BPE from scratch, WordPiece, byte-level BPE, and the surprising ways tokenization breaks models.

Tool Use and Function Calling

Enabling LLMs to invoke external tools and APIs through structured function calling, covering JSON schema design, Anthropic vs OpenAI formats, parallel tool calls, and production safety.

Tool Use from Python

Building LLM tool use systems in Python -- function calling, tool schemas, execution loops, error handling, and multi-step agent patterns.

Training MoE Models

How to train Mixture of Experts models at scale - expert parallelism, capacity factors, token dropping, load imbalance, training instability, and the GShard approach to 600B parameters.

Tree-of-Thought Prompting

Explore multiple reasoning paths simultaneously using Tree-of-Thought - the technique that enables LLMs to backtrack, evaluate alternatives, and solve problems that defeat linear chain-of-thought.

Vector Databases

Compare Pinecone, Qdrant, Weaviate, Milvus, Chroma, and pgvector - understand the engineering trade-offs and build a production vector store.

Vision-Language Models

How modern AI systems combine vision encoders with language models to understand and reason about images.

vLLM and Inference Servers

Learn how production inference servers like vLLM, TGI, TensorRT-LLM, and Ollama combine PagedAttention, continuous batching, and optimized kernels to serve LLMs at scale.

What Are Embeddings and Why They Matter

The fundamental concept of embeddings - mapping meaning to geometric space, cosine similarity, Word2Vec, the king-queen analogy, and why dense retrieval replaced keyword search.

When to Use SSMs in Production

A practical deployment guide: use cases where SSMs win, the streaming inference pattern, model availability on HuggingFace, fine-tuning SSMs, and a forward-looking outlook.

Why Model Merging Exists

The catastrophic forgetting problem, why naive ensembles are too expensive, and the surprising geometric insight that makes model merging possible.

Why RAG and When Not To

Understand why LLMs hallucinate, what RAG actually solves, and the decision framework for choosing RAG vs fine-tuning vs prompt stuffing.

Why Structured Output Matters in Production

The taxonomy of LLM output failures, why prompt-based JSON extraction breaks at scale, the production impact of 5% failure rates, and the spectrum of solutions from prompt engineering to constrained decoding.

Working with 128K+ Context Windows in Production

A complete production engineering guide for building applications with long-context LLMs - model selection, cost management, prompt structure, multi-turn conversation, and memory-augmented systems.

You Can't Fight in Here! This is BBS!

Norm, the formal theoretical linguist, and Claudette, the computational language scientist, have a lovely time discussing whether modern language models...

Zero-Shot Prompting

Learn how to elicit reliable behavior from LLMs using only instructions - no examples required - by mastering prompt anatomy, role personas, and format control.