A chart of the OpenAI ecosystem
Everything about OpenAI, mapped.
ChatGPT, GPT Models, Codex, API, Prompt, Memory, Voice, Images, MCP — every corner of the OpenAI ecosystem, organized into one navigable map.
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Latest articles
ChatGPT Not Working? Troubleshoot in This Order (2026)
When ChatGPT stops working, the cause sits in one of three layers: a platform incident, your local environment, or your account. Check status.openai.com first — most 'won't load' cases turn out to be local.
Read articleCodex Cloud Setup: Environments, Cloud Tasks, and the codex cloud CLI
Codex Cloud (called Codex Web in the source) is the hosted Codex surface: tasks run in cloud environments organized per GitHub repo, and the codex cloud CLI submits, tracks, and pulls diffs back to your machine.
Read articleCodex CLI config.toml: The Complete Guide to Models, Approvals, MCP and Layered Config
Codex CLI centers on ~/.codex/config.toml: model picks the model, approval_policy gates prompts, sandbox_mode sets boundaries, mcp_servers wires tools, profiles switch scenarios.
Read articleCodex CLI MCP Servers: The Full mcp_servers Config Field Guide
Codex CLI wires MCP servers via [mcp_servers] in config.toml: command/args/env for stdio, url/bearer_token/http_headers for remote, plus timeouts, tool filters and OAuth.
Read articleCodex CLI Sandbox Modes: sandbox_mode and approval_policy Explained
Codex CLI sandbox has four levels — read-only, workspace-write, external-sandbox, danger-full-access — plus a separate approval_policy axis. Every value checked against the codex source enums.
Read articleOpenAI API 429 Rate Limit Errors: RateLimitError and SDK Retries Explained
A 429 is two problems in one status: throughput limits vs quota exhaustion. The Python SDK already retries twice and honors Retry-After — this guide explains the mechanics from source.
Read articleOpenAI's Agents Optimization cookbook: a four-round playbook for cheaper support agents
A new official cookbook tutorial on agent optimization: measure a baseline, change one thing per round, and accept savings only after quality holds. Four optimization rounds and a nine-step tuning order, item by item.
Read article01 — Regions
Six regions of the map
From official tooling to deep research — each region covers a slice of the OpenAI ecosystem.
ChatGPT & Memory
ChatGPT end-to-end plus cross-conversation Memory: accounts, plans, Canvas, Voice, GPTs.
11 articles
Models & API
GPT-5.6 family selection and the OpenAI API in practice: Responses API, streaming, function calling, billing.
21 articles
Developer Tools
Codex CLI engineering workflows and the Model Context Protocol (MCP) in practice.
22 articles
Creation Studio
Image generation, custom GPTs, prompt patterns, and Realtime Voice: turning models into creative tools.
21 articles
Deep Research
ChatGPT's multi-turn research agent: how it works, quotas, citation hygiene, and prompt patterns.
7 articles
News & Updates
OpenAI changelog, industry news, and the editorial publishing handbook: stay current with the ecosystem.
29 articles
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