Manual

Coskey manual

Model switching and key management for ChatGPT.app

Need Codex first?Get OpenAI CodexCoskey manages models and configuration for the Codex desktop app. Before getting started, download and install Codex from OpenAI, then follow this manual to add a provider.View the Codex download guide

Contents

13 chapters · 17 pages

  1. 01Install and first runDownload Coskey, finish the first-run guide, and set up the wrapper and login injection.
  2. 02Providers and upstream modelsAdd an OpenAI-compatible provider, import models from its catalogue, and let the protocol be detected.
  3. 03Mappings and context windowsOne mapping equals one entry in the ChatGPT.app picker — and where its window and generation parameters live.
  4. 04Model catalogueThe catalog-mode switch and its three tabs — User catalog, System catalog and Catalog templates — for unlocking windows past 272K and managing entries and synthesis bases.
  5. 05Using it inside ChatGPT.appPick third-party models straight from the app's picker, switch mid-session, and the one window caveat.
  6. 06Session managementAdopt the historical sessions that fail to open, or hand them back to native opening.
  7. 07Status and settingsThe item-by-item health check, the settings that matter, and the Model catalogue page.
  8. 08Plugin manualImport or download plugins in Coskey's marketplace, then install, enable and update them in ChatGPT.app.
  9. 09Model gatewayExpose Coskey models at a fixed address for Codex and other agents, with per-client tokens, allowed models, LAN access and an independent gateway process.
  10. 10Codex model selectionHow remote Codex selects third-party models through the gateway, and how local coskey codex selects configured app models with /model after launch.
  11. 11ChatGPT.app checks and personalizationUse Coskey to inspect ChatGPT.app without changing it, then tune interface and efficiency options for API-key sessions.
  12. 12FAQWhen changes take effect, keys, windows, and how to troubleshoot.
  13. 13Disable and uninstallPause Coskey back to stock behaviour, and what to do with adopted sessions before removing it.