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 three actions available:
- Conversation (Responses API).
- Conversation with Assistant.
- Send Prompt
ChatGPT (OpenAI) action comparison table
| Feature | Conversation (Responses API) | Conversation with Assistant | Send Prompt |
| Best for | Conversations that require back-and-forth interactions. Includes memory and optional image support. | Conversations with structured assistants that can store files, use tools, and maintain long context. | Simple, one-off prompts that do not need memory or media. |
| Context retention | Supports memory via the Memory Key field. | Supports memory via the Conversation ID field and assistant-specific instructions. | No support for context retention. Each request is independent. |
| API used | Responses API | Assistant API | Completion API |
| Supported models |
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| Media support | Images supported (if model allows, e.g. GPT-4o). | Supports file uploads (code interpreter and file search). | No media support. |
| Tool support | N/A |