Comparing the intelligence scores of GPT-4.5 and GPT-3.5 involves understanding their respective capabilities and improvements. While specific intelligence scores for GPT-4.5 are not detailed in the available information, we can infer its performance based on the advancements from GPT-3.5 to GPT-4 and then to GPT-4.5.
**GPT-3.5 is known for its strong performance in generating human-like text and answering questions, but it has limitations in handling complex queries and image processing. It performed well in psychiatry-related questions but struggled with more comprehensive tasks[1][2].
**GPT-4 significantly improved upon GPT-3.5 by offering better language comprehension, handling complex queries more effectively, and processing images. GPT-4 demonstrated superior performance in internal medicine and surgery, achieving high scores in medical examinations, surpassing GPT-3.5's capabilities[1][2].
**GPT-4.5 is described as OpenAI's biggest and best chat model yet, with improvements in conversation quality and creativity. It reduces the rate of providing made-up answers compared to earlier models like GPT-4o[9]. However, specific intelligence scores or comparisons to GPT-3.5 in terms of IQ are not provided. The jump from GPT-3.5 to GPT-4o is similar to the jump from GPT-4o to GPT-4.5, suggesting continuous improvement in capabilities[9].
In summary, while GPT-4.5 likely surpasses GPT-3.5 in terms of overall performance and intelligence, the exact comparison in intelligence scores is not explicitly stated. GPT-4.5 focuses more on conversation quality and creativity, indicating a shift towards more nuanced and human-like interactions rather than just raw intelligence metrics.
Citations:
[1] https://pmc.ncbi.nlm.nih.gov/articles/PMC10884900/
[2] https://datasciencedojo.com/blog/gpt-3-5-vs-gpt-4-debate/
[3] https://www.reddit.com/r/ChatGPT/comments/15d40vp/what_if_gpt5_is_20_more_intelligent_than_gpt4/
[4] https://www.thoughtspot.com/data-trends/ai/gpt-4-vs-gpt-3-5
[5] https://www.tradingview.com/news/cointelegraph:04d84498a094b:0-what-is-gpt-4o-and-how-is-it-different-from-gpt-3-gpt-3-5-and-gpt-4/
[6] https://neoteric.eu/blog/gpt-4o-vs-gpt-4-vs-gpt-3-5-comparison-in-real-world-scenarios/
[7] https://www.techtarget.com/searchenterpriseai/tip/GPT-35-vs-GPT-4-Biggest-differences-to-consider
[8] https://teamai.com/blog/large-language-models-llms/understanding-different-chatgpt-models/
[9] https://www.technologyreview.com/2025/02/27/1112619/openai-just-released-gpt-4-5-and-says-it-is-its-biggest-and-best-chat-model-yet/