OpenAI API

Build AI-powered apps with the OpenAI API. Chat completions, function calling, embeddings, vision, DALL-E image generation, Assistants API, fine-tuning, streaming, and production patterns for cost and latency optimisation.

FundamentalsTopics 1–10

·What is the OpenAI API
·Getting Your API Key
·Chat Completions
·Messages & Roles
·Temperature & Max Tokens
·Streaming Responses
·Token Counting & Costs
·Models Overview
·Error Handling
·Rate Limits

Start Fundamentals →

IntermediateTopics 1–10

·Function Calling
·Structured Outputs
·Tool Use
·Vision & Image Inputs
·Embeddings API
·Batch API
·Fine-tuning Overview
·Prompt Engineering Patterns
·Conversation History Management
·System Prompt Design

Start Intermediate →

AdvancedTopics 1–10

·Assistants API
·Threads & Runs
·File Search (RAG)
·Code Interpreter
·DALL-E Image Generation
·Text-to-Speech & Whisper
·Reasoning Models (o1/o3)
·Fine-tuning in Depth
·Custom Functions at Scale
·Prompt Caching

Start Advanced →

ProductionTopics 1–10

·Cost Optimisation
·Latency Reduction
·Retry Logic & Backoff
·Secrets Management
·Rate Limit Handling
·Observability with LangSmith
·Caching Strategies
·Multi-Model Fallbacks
·Content Moderation
·Deployment Architecture

Start Production →