This article will guide you through the differences between available ChatGPT (OpenAI) actions you can use in your Zap to send and receive messages. It will help you decide which action is best for your needs when sending messages. There are two actions available:
- Conversation (Responses API)
- Send Prompt
Note
NoteConversation With Assistant has been deprecated due to the OpenAI Assistants API deprecation. Use Conversation instead, which supports memory, file search, web search, and MCP tools.
ChatGPT (OpenAI) action comparison table
| Feature | Conversation (Responses API) | Send Prompt |
|---|---|---|
| Best for | Conversations that require back-and-forth interactions. Includes memory and optional image support. | Simple, one-off prompts that do not need memory or media. |
| Context retention | Supports memory via the Memory Key field. | No support for context retention. Each request is independent. |
| API used | Responses API | Completion API |
| Supported models |
|
|
| Media support | Images supported (if model allows, e.g. GPT-4o). | No media support. |
| Tool support | N/A |