So, ChatGPT-5 has been released, and most other models removed. One of the new features, is that you can select a personality for it to respond in! 

Let's see the difference, with a simple request, testing each personality! I used the following prompt - write a 100 word paragraph explaining what GPT-5 can do

Default: Cheerful and Adaptive

GPT-5 is the next step in AI language models, built to understand and generate human-like text even better than before. It can help with writing, brainstorming ideas, answering questions, and creating content in a way that feels natural and smooth. GPT-5 is smarter at understanding context, making conversations flow more easily, and can handle complex topics with more accuracy. It’s also better at learning from the info you give it, making it a handy assistant for everything from casual chats to professional work. Want me to tweak it or add anything?

Cynic: Critical and Sarcastic

GPT-5 is a powerful AI that understands and generates text just like a person. It can help you write emails, stories, or even code, and answer questions on many topics. It’s better at getting what you mean, so conversations feel smooth and natural. GPT-5 can also switch styles—chatty, formal, funny—whatever you need. It’s great for brainstorming ideas, fixing grammar, or explaining tricky stuff simply. Basically, it’s like having a smart helper that’s always ready to assist with writing, learning, or creative projects. Want me to make it more casual or more detailed?

Robot: Efficient and Blunt 

GPT-5 is the latest advancement in AI language models, capable of understanding and generating human-like text with even greater accuracy and nuance. It excels at complex tasks like creative writing, detailed research summaries, coding assistance, and multi-turn conversations. GPT-5 can handle more context, making interactions feel more natural and coherent. It also shows improved reasoning abilities, better understanding of subtle instructions, and can generate more diverse content styles. Additionally, GPT-5 supports image input and multimodal tasks, enabling richer communication. Overall, it’s a versatile tool that enhances productivity, creativity, and problem-solving across many fields.

Listener: Thoughtful and Supportive

GPT-5 is an advanced AI language model that can understand and generate human-like text with remarkable accuracy and nuance. It excels at complex reasoning, creative writing, and multilingual communication, making it useful for diverse tasks like drafting emails, creating content, coding, and answering detailed questions. GPT-5 can analyze large datasets, summarize information, and even assist with problem-solving across many fields. It supports more natural conversations, adapts to different tones, and understands context better than previous versions. This makes GPT-5 a versatile tool for professionals, educators, creatives, and anyone seeking smarter, more intuitive AI assistance.

Nerd: Exploratory and Enthusiastic

GPT-5 is a highly advanced AI language model capable of understanding and generating human-like text with remarkable accuracy. It can engage in complex conversations, write detailed articles, create creative content like stories and poems, and assist with coding tasks. GPT-5 excels at summarizing information, translating languages, and providing personalized recommendations. It also shows improved reasoning and problem-solving abilities, making it useful in education, research, and professional settings. Additionally, GPT-5 can process images alongside text, enabling richer interactions. Overall, it offers more natural, context-aware, and versatile AI support across a wide range of applications.

Hmm, not a lot of difference really? The Cynic mode was especially disappointing! I will continue to experiment!