Project 42Start learning

Guided path · intermediate

OpenAI in Practice

Choose the right OpenAI surface and build evaluated, secure, observable, migration-ready API, tool, and Codex workflows.

7 modules384 minutesOpenAI Practitioner badge
42
Complete the path to earnOpenAI Practitioner

Who this is for

Learners and practitioners using ChatGPT, the OpenAI API, or Codex for individual, application, and development workflows.

Your route

Modules

  1. 0144 min · intermediateNavigate the OpenAI EcosystemChoose deliberately among ChatGPT workspaces, the OpenAI API platform, and Codex development workflows without transferring capabilities or controls between them.Begin →
  2. 0250 min · intermediatePrompt OpenAI Models with Evaluated ContractsDesign clear, versioned prompts for ChatGPT and API workflows, separate instruction authority from variable input, and improve behavior with controlled evaluations.Begin →
  3. 0356 min · intermediateBuild Reliable OpenAI Responses API WorkflowsIntegrate the OpenAI Responses API with environment-based configuration, typed item handling, deliberate conversation state, output validation, bounded recovery, and privacy-aware telemetry.Begin →
  4. 0462 min · advancedBuild Bounded OpenAI Tool and Codex Agent LoopsConnect OpenAI models to built-in and custom tools through narrow schemas, matched call results, enforced authority, explicit budgets, approvals, sandbox boundaries, and verified side effects.Begin →
  5. 0558 min · advancedSecure OpenAI Workflows with Layered Trust BoundariesThreat-model direct and indirect prompt injection, sensitive data, excessive tool authority, and unsafe output, then enforce layered controls around OpenAI workflows.Begin →
  6. 0658 min · advancedEvaluate and Observe OpenAI WorkflowsMeasure OpenAI outcomes, safety, tool trajectories, latency, cost, and drift with versioned cases, calibrated graders, trace evidence, production feedback, and release gates.Begin →
  7. 0756 min · advancedMigrate OpenAI Workflows with EvidenceInventory dependencies, separate portable contracts from OpenAI-specific behavior, compare APIs or providers, canary safely, and preserve rollback through migration and deprecation.Begin →