openai-cookbook

Learn to implement out-of-band transcription with OpenAI Realtime sessions. Generate verbatim transcripts without altering conversation state by setting conversation none in response create.

Learn to build tool-using agents with LangChain. Implement a ReAct loop using custom prompts, structured output, and AgentExecutor to let LLMs use external tools dynamically.

Build self-evolving agents with autonomous retraining using OpenAI's Assistants API and reflection logging for continuous improvement. Automate model fine-tuning without human intervention.

Master context engineering for OpenAI Agents SDK with best practices. Learn to chunk knowledge, compose structured prompts, and leverage the reasoning field for clearer AI responses. Enhance your agent's performance today.

Learn to evaluate image inputs with the OpenAI Evals API. Get a complete guide to automating end-to-end model evaluation with structured, reproducible scores using LLM-based grading.

Build supply chain copilots with Databricks MCP servers and OpenAI Agents SDK. Query live data, leverage vector search, and Unity Catalog with LLM tools for powerful automation.

Achieve reproducible outputs with OpenAI API using the seed parameter. Learn how to anchor random number generation for consistent results with the system fingerprint for detecting changes.

Implement multi-tool orchestration with RAG to dynamically route queries across vector stores, web search, and file indexes for advanced information retrieval. Learn more.

Learn to build temporal agents using knowledge graphs for retrieval. This guide shows how to store time-aware facts in a SQLite graph that invalidates stale predictions and tracks entity evolution.

Reduce OpenAI API costs with prompt caching. Learn how this technique cuts input token costs by up to 90% and slashes latency for long prompts.

Automate multi-step development with Codex CLI and PLANS.md. Store milestones and commands in PLANS.md for iterative code planning, editing, validation, and repair.

Learn to build voice agents with the OpenAI Realtime API. Explore a production-ready reference implementation with ESP-32, Deno, and React. Get code examples now.