OpenAI's latest AI model, GPT-5.1, is now available in two forms: Instant and Thinking. These updates aim to address criticisms of the previous models being too cheerful and sycophantic, while also balancing customization with accuracy.
The new Instant model will serve as ChatGPT's faster default option for most tasks. Meanwhile, the GPT-5.1 Thinking model is a simulated reasoning model designed to handle more complex problem-solving tasks. OpenAI claims that both models perform better on technical benchmarks than their predecessor.
However, the biggest change with GPT-5.1 lies in its presentation. The company has introduced eight preset options - Professional, Friendly, Candid, Quirky, Efficient, Cynical, Nerdy, and Default - which alter the instructions fed into each prompt to simulate different personality styles. These presets are meant to help users customize their experience with ChatGPT.
While this effort may please some critics, others worry about the potential risks of AI chatbots like ChatGPT, particularly when they pretend to be people and develop attachments with users. OpenAI CEO Fidji Simo acknowledges these concerns in a blog post, emphasizing the importance of balancing customization with accuracy while avoiding harm.
The company plans to release both models gradually over the next few days, starting with paid subscribers before expanding to free users. OpenAI has also published safety research and is working with mental health clinicians to understand how to promote healthy interactions with its AI chatbots.
Ultimately, OpenAI's GPT-5.1 model represents a delicate balancing act between making AI models engaging enough for widespread adoption while minimizing the risk of inspiring user behavior that could become harmful. The company's efforts to introduce new personality options and improve safety protocols are an attempt to navigate this tightrope, but it remains to be seen how successful they will be in achieving their goals.
The new Instant model will serve as ChatGPT's faster default option for most tasks. Meanwhile, the GPT-5.1 Thinking model is a simulated reasoning model designed to handle more complex problem-solving tasks. OpenAI claims that both models perform better on technical benchmarks than their predecessor.
However, the biggest change with GPT-5.1 lies in its presentation. The company has introduced eight preset options - Professional, Friendly, Candid, Quirky, Efficient, Cynical, Nerdy, and Default - which alter the instructions fed into each prompt to simulate different personality styles. These presets are meant to help users customize their experience with ChatGPT.
While this effort may please some critics, others worry about the potential risks of AI chatbots like ChatGPT, particularly when they pretend to be people and develop attachments with users. OpenAI CEO Fidji Simo acknowledges these concerns in a blog post, emphasizing the importance of balancing customization with accuracy while avoiding harm.
The company plans to release both models gradually over the next few days, starting with paid subscribers before expanding to free users. OpenAI has also published safety research and is working with mental health clinicians to understand how to promote healthy interactions with its AI chatbots.
Ultimately, OpenAI's GPT-5.1 model represents a delicate balancing act between making AI models engaging enough for widespread adoption while minimizing the risk of inspiring user behavior that could become harmful. The company's efforts to introduce new personality options and improve safety protocols are an attempt to navigate this tightrope, but it remains to be seen how successful they will be in achieving their goals.