#Comparison
3 total
API
6 minResponses API vs Chat Completions: Is It Time to Migrate?
The Assistants API is shut down and Chat Completions is in legacy mode. This guide compares the two generations across state management, tool definitions, and built-in capabilities, with a migrate-one-flow-at-a-time path.
Read articleCodex
6 minCodex CLI vs IDE Extension vs Codex Cloud: Choosing a Codex Surface
Codex ships in three surfaces -- local terminal, IDE extension, and cloud. This guide compares execution environment, sandbox and approvals, automation, and scenarios, with a migration view for Cursor users.
Read articleMemory
7 minMemory vs Project Instructions vs GPT Knowledge: ChatGPT's Three Context Mechanisms Compared
ChatGPT has three ways to make the model 'remember': cross-conversation Memory, project-level Instructions, and a custom GPT's Knowledge. This guide compares scope, maintenance, and lifecycle item by item, then shows how to combine them.
Read article