GPT-4.5 - OpenAI's latest large language model with enhanced reliability in math and physics.

## GPT-4o Release and Overview GPT-4.5 is OpenAI's latest large language model, developed as an upgrade to GPT-4. It is designed to offer superior performance, especially in mathematical and physics-related tasks, with enhanced reliability and lower hallucination rates. The model supports multimodal interactions, including file and image uploads, and is hosted by Microsoft for integration into services like Copilot. ## Comparison Between GPT-4.5 and GPT-4 GPT-4.5 outperforms GPT-4 in several key areas: - **Performance**: Enhanced reliability in math and physics. - **Model Size**: Larger model with higher computational demands. - **User Experience**: Better understanding of user intent and reduced hallucination rates. - **Multimodal Support**: Includes file and image uploads, real-time search, and canvas tools, which GPT-4 may not support as effectively. ## Key Features of GPT-4o The key features of GPT-4.5 include: - **Enhanced Performance**: Superior reliability in math and physics. - **Multimodal Capabilities**: Supports text, image, and file interactions. - **User Intent Understanding**: Improved natural dialogue and emotional analysis. - **Functionality**: Includes content generation, problem-solving, programming assistance, and real-time search. - **Limitations**: Does not support voice mode, video processing, or screen sharing. ## Accessing GPT-4o for Developers and Users GPT-4.5 is initially accessible to: - **ChatGPT Pro Subscribers**: Available for $200/month. - **API Developers**: Through OpenAI's API. Future plans include expanding access to ChatGPT Plus subscribers ($20/month) and other tiers, with full integration into Microsoft's Copilot service. ## Criticisms of GPT-4.5 Criticisms of GPT-4.5 focus on: - **High Computational Costs**: The larger model size increases operational expenses. - **Subscription Fees**: The $200/month price tag raises concerns about accessibility and fairness. - **Sustainability**: Some researchers question the long-term viability of continuously scaling model sizes due to hardware limitations. ## Future Outlook for GPT-4.5 The future of GPT-4.5 depends on: - **Developer Feedback**: OpenAI may adjust the model based on user and developer input. - **Cost Management**: Addressing high computational costs to ensure sustainability. - **Access Expansion**: Plans to make the model available to more user tiers, such as ChatGPT Plus subscribers. ## Sources for GPT-4.5 Information Detailed information about GPT-4.5 can be found in: - **WIRED**: Coverage on OpenAI's release and first impressions. - **CNBC**: Reports on the model's launch and capabilities. - **New Scientist**: Discussions on computational costs and sustainability. - **Techtarget**: In-depth analysis of features and functionalities. - **MIT Technology Review**: Evaluations of GPT-4.5 as a leading chat model. ### Citation sources: - [GPT-4.5](https://www.xiaohu.ai/c/xiaohu-ai/gpt-4-5-openai-4-200) - Official URL Updated: 2025-04-01