Expanded GPT-4.5 Access
OpenAI has announced that it is rolling out GPT-4.5 to ChatGPT Plus users, following its initial launch as a research preview for ChatGPT Pro subscribers. The model is now available to a wider audience, with a lower price point of $20 per month.
What is GPT-4.5?
GPT-4.5 is the latest model from OpenAI, claiming to be the "largest and most knowledgeable model yet". It is designed to provide improved performance, with fewer hallucinations, stronger alignment to prompt intent, and enhanced emotional intelligence. The model has been trained using unsupervised learning and reasoning, allowing it to provide more natural and intuitive responses.
GPT-4.5 Benchmarks
The model has been tested on various benchmarks, including Competition Math (AIME 2024), PhD-level Science Questions (GPQA Diamond), and SWE-Bench verified (coding). GPT-4.5 outperformed its predecessor, GPT-4o, in these benchmarks.
Security
OpenAI has assured the public that the model is safe enough to be released, stress-testing the model and detailing the results in the accompanying system card. The company has also combined new supervision techniques with reinforcement learning from human feedback (RLHF) to make the model safer.
Conclusion
GPT-4.5 is a significant advancement in AI technology, offering improved performance and a more natural and intuitive user experience. With its expanded access and lower price point, more users can now benefit from this powerful tool.
FAQs
Q: What is the cost of GPT-4.5?
A: The cost of GPT-4.5 is $20 per month for ChatGPT Plus users.
Q: What are the benefits of GPT-4.5?
A: GPT-4.5 provides improved performance, with fewer hallucinations, stronger alignment to prompt intent, and enhanced emotional intelligence.
Q: How was GPT-4.5 trained?
A: GPT-4.5 was trained using unsupervised learning and reasoning.
Q: Is GPT-4.5 safe?
A: OpenAI has assured the public that GPT-4.5 is safe enough to be released, stress-testing the model and detailing the results in the accompanying system card.

