🧪 Test: Comparing the ChatGpt 5.4 vs ChatGpt 5.4 mini Vs ChaGpt 5.4 nano

To better understand how different AI models behave inside Fabio AI Chatbot, we ran a simple test on our kitchen troubleshooting demo site : https://fabio-plugins.com/demo_how_to/ with the 3 latest ChatGPT models from @OpenAI.

🥔 The user question

The visitor typed a short and imperfect request :

“4 students sausage and potatoes”

This kind of query is very common in real life: users often type keywords instead of full sentences.

⚙️ Chatbot setup

Before running the test, we configured the chatbot with a simple rule in the additional instructions:

GPT-5.4

GPT-5.4 correctly understands that “4 students” means cooking for 4 people and recognizes that the website does not contain sausage recipes, avoiding hallucinations and staying grounded in the site content. Instead of inventing a recipe, it safely asks the user whether they want a potato-based alternative using available ingredients, showing reliable reasoning for a website chatbot.

GPT-5.4 Mini

GPT-5.4 Mini correctly detects that the website contains potato recipes but no sausage recipes, and avoids generating unsupported content. However, its response is shorter and less explanatory than GPT-5.4, simply offering to suggest a relevant potato recipe from the site instead of analyzing the request in depth.

GPT-5.4 Nano

GPT-5.4 Nano correctly understands that no sausage recipe exists on the site and stays grounded in the available potato content, avoiding hallucinations. Its response is more verbose and slightly less structured than ChatGpt 5.4, but ChatGpt 5.4 nano asks for additional ingredients to keep the dialogue running. Pretty good for a low token consumption model.