Can I Integrate ChatGPT with Chatfuel?
You don't need to — ChatGPT is already built in. Fuely AI, Chatfuel's AI assistant, runs on OpenAI's GPT-5.2 model.
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You don't need to — ChatGPT is already built in. Fuely AI, Chatfuel's AI assistant, runs on OpenAI's GPT-5.2 model. Every conversation your customers have with the bot is already powered by the same technology behind ChatGPT.
What this means for you
- You get the full power of GPT without any extra setup or integration.
- Chatfuel handles the AI infrastructure — model access, prompt management, and response generation — so you can focus on your Knowledge Base and business rules.
- There is no option to plug in your own OpenAI API key. Chatfuel manages the connection to ensure reliability, safety, and optimized performance for messaging use cases.
What if I want to connect an external API?
If your use case requires calling a custom backend, CRM, or any third-party service during a conversation, you can use the JSON API plugin. It lets you send and receive data from external endpoints inside your flows.
Quick summary
| Question | Answer |
|---|---|
| Does Chatfuel use ChatGPT? | Yes — Fuely AI runs on GPT-5.2 |
| Do I need to integrate ChatGPT separately? | No — it's already built in |
| Can I use my own OpenAI API key? | No — Chatfuel manages the AI infrastructure |
| Can I connect other external services? | Yes — via the JSON API plugin |