OpenAI GPT-4.5: Evolution, comparison with Claude 3.7, and future potential

The next generation of AI: OpenAI GPT-4.5 unveiled

Two years after GPT-4's launch, OpenAI finally reveals GPT-4.5, a major upgrade to its flagship artificial intelligence model. This new version promises to be "10 times better" than its predecessor, with significant improvements across key areas. But how does this new AI actually perform against increasingly fierce competition like Claude 3.7, or even compared to GPT-4o? GPT-4.5 arrives at a time when artificial intelligence is evolving at breakneck speed. After two years without a major update to its primary model, OpenAI finally meets expectations with an AI that promises to revolutionize our technological interactions.

Key advancements in OpenAI GPT-4.5

More natural human-like interaction

One of GPT-4.5's primary improvements is interaction quality. The model delivers more fluid, natural dialogues that adapt to the user's tone and emotions. This enhanced ability to understand and respond with appropriate emotional sensitivity represents a significant leap forward in user experience. During testing, GPT-4.5 demonstrated impressive capabilities in grasping the emotional context of conversations. When presented with personal challenges like managing professional FOMO (Fear Of Missing Out), the model responds with empathy and offers tailored solutions while maintaining a reassuring, understanding tone.

Enhanced intent understanding

GPT-4.5 excels at correctly interpreting user intentions, even when phrasing is imprecise or ambiguous. This improvement substantially reduces frustration related to misunderstandings and off-topic responses. The model now more effectively analyzes the overall conversation context to extract the true intention behind each request, resulting in more relevant responses better aligned with users' actual needs.

Significant reduction in hallucinations

Hallucinations—instances where AI generates incorrect or fabricated information—have always been a major challenge for language models. GPT-4.5 marks an important advancement in this area, with a notable reduction in erroneous or fabricated responses. This improvement is particularly evident when analyzing complex documents or generating factual content. The model now relies on a more robust knowledge base and more sophisticated internal verification mechanisms.

Technical capabilities enhanced

Advanced chain-of-thought reasoning

OpenAI GPT-4.5 introduces a step-by-step reasoning approach, similar to Claude 3.7's but with its own unique characteristics. The model now breaks down complex problems into logical sequences, improving response quality and reliability. This "chain-of-thought" method allows GPT-4.5 to tackle complex tasks with increased precision. Testing shows the model methodically analyzes problems before formulating responses, resulting in more robust, well-reasoned solutions.

Strengthened multilingual performance

A major improvement in GPT-4.5 concerns its multilingual capabilities. While previous versions showed weaknesses in non-English languages, this new version offers significantly superior performance across multiple languages, including French. This advancement is particularly important for French-speaking users, who can now benefit from response quality comparable to that obtained in English. Linguistic nuances, idiomatic expressions, and cultural subtleties are better understood and conveyed.

Enhanced security

OpenAI has also emphasized security in this new version. GPT-4.5 integrates more robust protection mechanisms against potentially problematic uses while maintaining balance with the model's utility and flexibility. This security focus is particularly evident in handling sensitive or ambiguous requests, where the model demonstrates greater caution while remaining helpful within its ethical guidelines.

GPT-4.5 vs GPT-4o: A detailed comparison

Response conciseness and relevance

Comparative testing between GPT-4.5 and GPT-4o reveals a notable difference in response structure and conciseness. GPT-4.5 tends to get more directly to the point, with more scannable, better-organized responses. For example, in the "evil genius" exercise where the AI is invited to identify potential business vulnerabilities, GPT-4.5 proves more concise and precise than GPT-4o. It fully adopts the requested role and structures its response more clearly and actionably.

Role understanding and execution

GPT-4.5 demonstrates better ability to adopt and maintain a specific role throughout a conversation. This improvement is particularly visible in role-playing exercises or when asking the model to adopt a particular perspective. In the "evil genius" test, GPT-4.5 fully immersed itself in the requested role, using first person ("how I would sabotage your business") where GPT-4o remained more detached and descriptive. This subtle but important difference improves user experience and response quality in creative or specialized contexts.

Speed and efficiency

Another advantage of GPT-4.5 is its processing speed. Tests show the new model generates responses significantly faster than GPT-4o while maintaining or improving quality. This increased efficiency is particularly valuable when analyzing voluminous documents or generating complex content, where time savings can be substantial.

OpenAI GPT-4.5 vs Claude 3.7: Battle of the titans

Programming performance

Comparing GPT-4.5 and Claude 3.7 in programming reveals interesting strengths and weaknesses. Although GPT-4.5 shows strong development competence, Claude 3.7 seems to maintain a slight advantage in this specific domain.

In the time management application creation test, Claude 3.7 produced a more complete, sophisticated solution from the first prompt, while GPT-4.5 offered a more simplified version. However, it's important to note that GPT-4.5 could potentially reach a similar level with a few additional iterations.

Document analysis and strategy

Conversely, OpenAI GPT-4.5 particularly shines in complex document analysis and strategy formulation. During the analysis test of a 57-page PDF study on AI impact in Quebec businesses, GPT-4.5 demonstrated impressive ability to:

• Extract and synthesize key points
• Identify and explain graphics present in the document
• Identify specific business needs
• Formulate a detailed, adapted commercial strategy

This performance is all the more remarkable as the model accomplished these complex tasks with surprising speed, suggesting significantly improved processing efficiency.

Vision and image analysis

In artificial vision, OpenAI GPT-4.5 demonstrates exceptional capabilities. Testing analysis of a composite image of different Pokémon game generations reveals impressive attention to detail:

• Precise identification of six different game generations
• Recognition of specific characters and Pokémon
• Exact counting of visual elements (25 human characters, 4 panels)
• Analysis of graphical evolution across generations

This meticulous observation and contextual analysis capability positions GPT-4.5 as a particularly powerful tool for tasks involving visual content.

How to access GPT-4.5?

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Technical constraints

Sam Altman, OpenAI CEO, explained on Twitter that GPT-4.5's gradual deployment was due to computing resource constraints. As the model is "much heavier and more expensive to operate," the company must balance access with infrastructure availability. This situation highlights the technical and economic challenges related to deploying increasingly sophisticated AI models, and partly explains why OpenAI had to proceed in stages for GPT-4.5's launch.

Practical applications of GPT-4.5

Web research and market analysis

GPT-4.5 proves particularly effective for online research and information analysis. The integrated "Search" function allows the model to access the internet to provide up-to-date, relevant information. In a business opportunity research test in the generative AI field, GPT-4.5 quickly identified market trends, proposed viable economic models, and developed strategic roadmaps. This ability to combine online research with strategic analysis makes it a valuable tool for business intelligence and new opportunity exploration.

Complex document analysis

One of GPT-4.5's most impressive strengths lies in its ability to process and analyze voluminous, complex documents. The model can:

• Extract essential information from multi-page documents
• Identify and explain visual elements like graphs or tables
• Establish connections between different document sections
• Formulate recommendations based on this in-depth analysis

This capability transforms GPT-4.5 into an extremely powerful document research and analysis assistant, capable of significantly accelerating complex information processing.

Vision and image analysis

GPT-4.5's vision capabilities open numerous practical applications:

• Detailed analysis of images and visuals
• Precise identification of specific elements
• Counting and categorization of objects
• Contextual interpretation of visual content

These features can be particularly useful in fields like visual data analysis, content moderation, or accessibility assistance for visually impaired individuals.

Strategic context of GPT-4.5's launch

Competitive pressure

GPT-4.5's launch occurs in a context of intense competition in the generative AI field. With the emergence of high-performing models like Anthropic's Claude 3.7 and the imminent announcement of DipSci R2 (a Chinese model), OpenAI seems to have accelerated its release schedule. This competitive pressure partly explains why the company chose to launch GPT-4.5 now, rather than waiting for GPT-5's release planned for late May or early June 2025 according to some sources.

Positioning against Claude 3.7

Comparison with Claude 3.7 reveals an interesting strategy from OpenAI. While Claude excels in specific domains like programming, GPT-4.5 seems to aim for more generalist excellence, with balanced performance across different tasks and domains. This approach could prove judicious for maintaining ChatGPT's appeal to a broad, diverse audience, while preparing the ground for more spectacular advances with GPT-5.

Anticipation of GPT-5

Rumors about GPT-5's upcoming release (late May or early June 2025) position GPT-4.5 as an intermediate—yet substantial—update. This strategy allows OpenAI to:

• Maintain interest and engagement from its user community
• Test certain improvements that will likely be pushed further in GPT-5
• Respond to competitive pressure without prematurely revealing its most advanced innovations

This progressive approach demonstrates a well-thought-out development and deployment strategy, aiming to maximize the impact and adoption of each new version.

OpenAI GPT-4.5: A significant evolution

GPT-4.5 represents a notable advancement in the evolution of OpenAI's artificial intelligence models. Although not a complete revolution like GPT-5 might be, this update brings substantial improvements that transform the user experience and expand possible applications.

Comparative tests reveal that GPT-4.5 clearly surpasses GPT-4o in most areas, with more concise, relevant responses generated more quickly. Against Claude 3.7, it demonstrates complementary strengths, particularly excelling in document analysis and artificial vision.

The upcoming integration of GPT-4.5 into $20 ChatGPT Plus subscriptions represents excellent news for users, who will be able to access these advanced capabilities without subscribing to the significantly more expensive Pro offer. This democratization of cutting-edge technology access aligns with OpenAI's mission to make powerful AI accessible to as many people as possible.

As we await GPT-5's arrival in the coming months, GPT-4.5 already offers a fascinating glimpse of the future potential of generative artificial intelligence on Swiftask.

One thing is certain: the pace of innovation in this field shows no sign of slowing, and the coming years promise even more spectacular advances in our relationship with artificial intelligence.