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GPT 4.5

27 days ago by Cormick Marskamp

OpenAI has unveiled GPT-4.5, its latest and most advanced AI language model to date. Building upon the foundation of GPT-4o, GPT-4.5 offers enhanced pattern recognition, deeper world knowledge, and a more refined conversational experience. This release aims to provide users with a more intuitive and reliable AI assistant for a variety of applications.

Why It Matters

GPT-4.5 represents a significant step forward in AI-human interaction. By reducing instances of AI "hallucinations" and improving emotional intelligence, users can expect more accurate and contextually appropriate responses. These enhancements are particularly beneficial for tasks requiring creativity, empathy, and nuanced understanding, such as content creation, customer support, and personal assistance.

What’s New?

Enhanced Knowledge: GPT-4.5 has been trained on a broader dataset, resulting in a more comprehensive understanding of various topics and improved factual accuracy.

Improved Conversational Abilities: The model now exhibits a more natural and emotionally nuanced conversational style, making interactions feel more like engaging with a thoughtful human.

Reduced Hallucinations: Through advanced training techniques, GPT-4.5 significantly lowers the occurrence of generating incorrect or fabricated information, enhancing user trust.

Additional Enhancements

  • Training Innovations: GPT-4.5 combines traditional supervised fine-tuning with scalable alignment, where smaller models generate high-quality training data for larger models. This approach accelerates training and improves the model's ability to follow nuanced instructions.
  • Multilingual and Multimodal Support: The model shows moderate gains in understanding multiple languages and processing various data types, making it versatile for global applications.

Performance & Analysis Tools

  • Benchmark Evaluations: GPT-4.5 demonstrates solid improvements over GPT-4o, especially in math (+27.4%) and science (+17.8%), making it more reliable for factual reasoning.
  • User Feedback Integration: OpenAI encourages users to engage with GPT-4.5 and provide feedback to further refine its capabilities and address any limitations.
  • Complex reasoning: Even though GPT-4.5 is an improvement over GPT-4.o, for more complex reasoning tasks, you should use o3-mini.


We invite all users to explore GPT-4.5 and experience its enhanced features firsthand. Your interactions and feedback are invaluable as we continue to evolve and improve our AI models. Dive in and discover how GPT-4.5 can assist you in achieving your goals more effectively.