GPT-4.5 vs. GPT-4: More intelligent, more natural, more creative? How does GPT-4.5 differ from GPT-4? – Image: Xpert.Digital
More than just an update: What really distinguishes GPT-4.5 from GPT-4 - in brief
Between euphoria and caution: GPT-4.5 in detail – Where does the new model shine, and where are its limitations?
In the fast-paced world of artificial intelligence, one innovation follows another. The initial excitement surrounding GPT-4 has barely subsided when GPT-4.5, the next generation of language models, is already poised for launch. OpenAI promises nothing less than a revolution in human-machine interaction with this advancement. But what exactly is behind the name GPT-4.5? Is it merely an incremental update, or does it mark a significant leap forward in the development of generative AI?
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GPT-4.5, OpenAI's latest language model, brings several significant improvements over GPT-4
- 1. More natural communication: GPT-4.5 is characterized by a more fluid, intuitive conversational style. Responses are more concise and understandable without losing important information.
- Improved accuracy: GPT-4.5 exhibits a significantly reduced rate of hallucinations. In a general knowledge test (SimpleQA), it achieved an accuracy of 62.5% compared to 38.2% in previous versions.
- Emotional intelligence: The model was trained to better understand user intent and respond to emotional nuances. It can better assess when to offer advice, help with frustration, or simply listen.
- Broader knowledge and application range: GPT-4.5 is more versatile and not only focused on scientific and technical fields.
- Creativity and aesthetics: It demonstrates a refined sense of creativity and aesthetics, making it more valuable for artistic and creative tasks.
- Improvements in mathematics and science: Despite the omission of Chain-of-Thought-Reasoning, GPT-4.5 shows significant improvements in mathematics (+27.4%) and science (+17.8%).
- Larger scope: Although exact figures are not known, it is assumed that GPT-4.5 has significantly more parameters than GPT-4, leading to a broader knowledge base and improved contextual understanding.
However, it is important to note that GPT-4.5 also entails higher computational costs, raising questions about its long-term availability. Despite the improvements, it may be less reliable than specialized reasoning models for complex logical tasks.
GPT-4.5 and GPT-4 differ in their response structures in several important ways
- Conciseness and comprehensibility: GPT-4.5 provides shorter, more concise, and more understandable answers than GPT-4. In a comparative test on the question “Why is the ocean salty?”, GPT-4.5 gave a brief but complete explanation, while GPT-4 provided a lengthy, albeit precise, answer.
- A more natural conversational style: GPT-4.5's responses flow more naturally and seem less robotic. This leads to more intuitive and fluid interactions.
- Structured explanations: GPT-4.5 structures its explanations to make them easier to remember and understand. It summarizes the most important points concisely, rather than providing overly detailed answers.
- Emotional intelligence: GPT-4.5 shows an improved ability to understand and respond to emotional nuances. It can better assess when to offer advice, help with frustration, or simply listen.
- Contextual understanding: GPT-4.5 has an improved understanding of the user's context and implicit expectations, leading to more nuanced and thoughtful responses.
- Creativity and aesthetics: The responses from GPT-4.5 show a refined sense of creativity and aesthetics, making it more valuable for artistic and creative tasks.
- Reduced hallucinations: GPT-4.5 produces less false or fabricated information in its responses compared to GPT-4.
However, it is important to note that GPT-4.5 may be less effective than specialized reasoning models for complex logical tasks or structured problem-solving.
GPT-4.5 shows lower reliability in the following situations
- Complex logical tasks: For problems that require structured thinking and step-by-step solutions, GPT-4.5 performs worse than specialized reasoning models such as o3-mini.
- Advanced mathematics and natural sciences: In these areas, GPT-4.5 lags behind models optimized for logic-based problem solving.
- Structured programming: For complex coding tasks, GPT-4.5 is less effective than models designed for step-by-step thinking.
- Fact-checking: Although GPT-4.5 has an improved hallucination rate of 37.1%, it is still not fully trustworthy for reliable fact-checking.
- Overly cautious answers: When faced with harmless questions, GPT-4.5 sometimes tends to react overcautiously and say "no" more often than necessary.
- Ethically sensitive situations: Despite improved security mechanisms, GPT-4.5 may be less reliable in contexts requiring ethical considerations, particularly due to its improved persuasive capabilities.
GPT-4.5 proves to be particularly reliable in the following situations
- Natural conversation: The model offers smoother and more intuitive conversations with improved emotional intelligence.
- General knowledge and factual accuracy: GPT-4.5 achieves a hit rate of 62.5% in SimpleQA tests, significantly higher than previous models.
- Reduced hallucinations: With a hallucination rate of only 37.1%, GPT-4.5 delivers less false or fabricated information than its predecessors.
- Creative tasks: The model demonstrates improved skills in areas such as creative writing and design.
- Multilingual performance: GPT-4.5 outperforms previous models in multilingual tests, particularly in MMLU evaluation across 14 different languages.
- Understanding user intent: It can better capture subtle cues and implicit desires.
- Scientific and mathematical tasks: GPT-4.5 shows significant improvements in these areas, with an accuracy of 71.4% in the GPQA scientific questions test.
- Software development: In benchmarks such as SWE-Bench Verified and SWE-Lancer Diamond, GPT-4.5 achieves better scores than previous versions, suggesting more precise code suggestions.
- Multimodal tasks: With a score of 74.4% in multimodal tasks (MMMU), GPT-4.5 surpasses its predecessor.
These improvements make GPT-4.5 particularly reliable for everyday problem-solving, writing tasks, programming, and creative applications.
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