The main differences between GPT-4.5 and GPT-5 can be summarized as follows:
- Structural Design and Functional Capabilities: GPT-4.5 is the last version of OpenAI's models to operate outside of the chain-of-thought (CoT) framework, serving as a transitional model. In contrast, GPT-5 is being developed as a unified intelligence model, integrating advanced technologies like the o3 reasoning model to enhance complex problem-solving and user interaction[6].
- Reasoning Ability: GPT-5 is expected to have more advanced reasoning capabilities compared to GPT-4.5, which will improve its ability to analyze complex data sets and solve sophisticated problems[5][6].
- Accuracy and Speed: GPT-5 is anticipated to offer higher accuracy and faster processing speeds than GPT-4.5. It can handle larger context windows, potentially processing up to 50,000 words at a time, which is twice as many as GPT-4 can handle[5].
- Architecture and Training Techniques: GPT-5 is likely to use a more advanced architecture, possibly incorporating graph neural networks and attention mechanisms, and may employ unsupervised learning from extensive datasets. This contrasts with GPT-4.5, which builds upon the existing transformer-based architecture and supervised learning methods[1][3].
- Multimodal Capabilities: While GPT-4.5 does not support multimodal outputs like audio or video, GPT-5 might offer enhanced multimodal capabilities, although specific details are not yet confirmed[4].
- Energy Efficiency and Resource Usage: GPT-5 is expected to be more energy-efficient and require lower computational resources compared to GPT-4.5, which could make it more accessible for a wider range of applications[3].
Citations:
[1] https://aliliaquat.com/gpt3-vs-gpt4-vs-gpt5-whats-the-difference/
[2] https://futureskillsacademy.com/blog/gpt-5-vs-gpt-4/
[3] https://topmostads.com/gpt-4-5-vs-gpt-5-release/
[4] https://help.openai.com/en/articles/10658365-gpt-4-5-in-chatgpt
[5] https://dida.do/the-evolution-of-llms-a-comparison-of-gpt-5-vs-gpt-4
[6] https://opentools.ai/news/gpt-45-and-gpt-5-openais-leap-towards-unified-intelligence
[7] https://www.techtarget.com/searchenterpriseai/tip/GPT-35-vs-GPT-4-Biggest-differences-to-consider
[8] https://www.zdnet.com/article/openai-finally-unveils-gpt-4-5-heres-what-it-can-do/