Gemini 2.5 vs GPT-4.5 vs Claude 3.7: The AI Challenge of the Future.

Published on Dec 26, 2025
Updated on Jan 03, 2026
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Conceptual chart comparing the architectures of the AI models Gemini, ChatGPT, and Claude through interconnected nodes.

The world of artificial intelligence is in constant and rapid evolution. The tech giants—Google, OpenAI, and Anthropic—are competing through innovation, launching increasingly powerful and sophisticated large language models (LLMs). This competition not only pushes the boundaries of what is technologically possible but is also reshaping the way we work, create, and interact with the digital world. Understanding the differences between these new tools is fundamental for anyone wanting to stay up to date, from professionals to students, and even the simply curious.

This article offers a comparative analysis of the most advanced models: Google’s Gemini 2.5 Pro, and the expected evolutions of its main competitors, ChatGPT-4.5 and Claude 3.7. Our focus is specific to the Italian and European context, a market with unique needs that balance tradition and innovation. We will evaluate not only technical performance but also the ability of these models to understand and valorize our culture, analyzing how they can become a bridge between the rich Mediterranean heritage and the opportunities of the digital future.

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The Giants Compared: Who Are the Contenders

The race for artificial intelligence is dominated by three main players, each with a distinct philosophy and approach. Google, with its immense data and research infrastructure; OpenAI, the pioneer that brought generative AI to the general public; and Anthropic, which emphasizes safety and ethics. Understanding who they are and what they represent is the first step in evaluating their flagship products.

Google Gemini 2.5 Pro: Google’s New Standard

Announced with great fanfare, Gemini 2.5 Pro represents the spearhead of Google’s research. This model distinguishes itself with its impressive “thinking” and reasoning capabilities, allowing it to analyze complex problems before formulating an answer. One of its main features is the vast context window, which can reach up to one million tokens, enabling it to process enormous amounts of information such as entire code archives or long documents. It is natively multimodal, capable of simultaneously understanding and processing text, images, audio, and video, making it an incredibly versatile tool. Its performance excels in technical fields such as mathematics and programming.

OpenAI ChatGPT-4.5: The Expected Evolution

Building on the planetary success of its predecessors, the hypothetical ChatGPT-4.5 is seen as the natural refinement of a winning formula. Although not yet released, expectations focus on incremental but significant improvements over GPT-4o. Further refinement in conversational naturalness and “emotional intelligence” is expected, making interactions even more fluid and human-like. OpenAI’s goal with ChatGPT has been to create a universal assistant, and version 4.5 is expected to further improve the ability to understand user intent and reduce “hallucinations,” i.e., incorrect or invented answers. Its strength would remain its great creativity and the ability to generate high-quality text quickly and consistently.

Anthropic Claude 3.7: Ethics Meets Power

Anthropic has always differentiated itself through its approach centered on safety and ethics, and the Claude family of models is proof of this. Version 3.7, an evolution of the Claude 3 family, would continue on this path, combining high-level performance with an architecture designed to be safer and more transparent. An expected strength for Claude 3.7 is its ability to handle complex coding tasks and reasoning over broad contexts, even if with a slightly smaller window than Gemini. A distinctive feature is the “extended thinking” mode, which allows the model to explicitly state its logical steps before giving an answer, offering greater transparency in its decision-making process.

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Performance Analysis: Beyond Benchmarks

Evaluating a language model based solely on standard test scores (benchmarks) can be reductive. The real differences emerge in practical use, where the ability to reason, multimodal versatility, and response speed become crucial. Let’s analyze how the three giants position themselves on these fronts, imagining a challenge between their latest creations.

Reasoning and Logic Capabilities

Here the battle gets interesting. Gemini 2.5 Pro was designed with “reasoning” as a fundamental capability, using techniques like “parallel thinking” to explore multiple solutions simultaneously, excelling in mathematics and complex logic. Claude 3.7 responds with its “extended thinking,” which, while perhaps less performant on purely mathematical problems, offers logical transparency that is an advantage in debugging tasks or strategic analysis. ChatGPT-4.5, while improving its capabilities, would focus more on creative reasoning and idea association, making it ideal for brainstorming and generating original content.

Multimodality: Not Just Words

The ability to handle different types of input (text, images, audio, video) has become a standard. Google, with Gemini 2.5 Pro, seems to be ahead, thanks to a native and deep integration of these capabilities. This translates into a more holistic understanding of complex requests. For example, one can ask Gemini to analyze a video and describe its content textually. Tools like Veo for video generation demonstrate the maturity of the Google ecosystem in this field. OpenAI and Anthropic are also making giant strides, but their implementation might result in being less integrated compared to Google’s all-encompassing approach.

Efficiency and Speed: Real-Time Response

In daily use, response speed is everything. A model can be incredibly powerful, but if it takes too long to respond, the user experience suffers. OpenAI has historically focused heavily on low latency, and ChatGPT-4.5 is expected to continue being one of the most responsive models on the market. Google, with Gemini 2.5 Flash, a lighter version of the Pro, offers an alternative optimized for speed. Claude 3.7, especially in its “extended thinking” mode, might result in being slightly slower, a necessary compromise to obtain more reasoned and transparent answers. The choice therefore depends on the use case: speed for chats, depth for complex analyses.

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The Impact on the Italian and European Market

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The adoption of artificial intelligence in Italy is growing, albeit at a slower pace compared to the European average. In 2024, only 8.2% of Italian companies with at least 10 employees used AI technologies, but interest is high. In this context, the ability of AI models to adapt to local specificities, respect European regulations, and support the economic fabric, composed mainly of small and medium-sized enterprises (SMEs), becomes a decisive competitive factor.

Cultural and Linguistic Adaptation

An LLM that is truly useful for the Italian market must go beyond simple translation. It must understand idioms, cultural references, regional nuances, and historical context. The quality of performance in Italian depends enormously on the training data. Platforms like “Chatbot Arena Italia” were created precisely to evaluate these specific capabilities. In this area, a model like Gemini, backed by Google’s enormous volume of data, could have an advantage in grasping the subtleties of Mediterranean culture. The challenge is to avoid biases and misinterpretations, respecting local values and traditions.

Tradition and Innovation: A Bridge for SMEs

Italy is the land of artisans, family businesses, and local excellence. AI can be a powerful tool for these entities, provided it is accessible and useful. Imagine a leather artisan using AI to create multilingual descriptions of their products, or a winery analyzing climate data to optimize the harvest. AI can help digitize historical archives, create interactive tourist routes, or translate ancient texts, valorizing cultural heritage. The challenge for SMEs is not only technological but also cultural: only 12% have a digital strategy that includes AI. The new models, simpler to use, can lower this barrier.

Privacy and Regulation: The European Way to AI

Europe has a unique approach to artificial intelligence, regulated by the rigorous AI Act. This legislation classifies AI systems based on risk level (minimal, high, unacceptable), imposing specific obligations to guarantee safety and the protection of fundamental rights. All AI providers, even those outside the EU, must comply if their services are used in Europe. This directly impacts Google, OpenAI, and Anthropic. Anthropic, with its focus on ethics, could find itself in an advantaged position. However, all companies will have to guarantee transparency, security, and GDPR compliance, a crucial aspect for gaining the trust of European users and businesses.

Concrete Use Cases for Daily Life

Artificial intelligence is no longer an abstract concept for insiders. It is entering our homes, our offices, and even our leisure time. Let’s see how the new LLMs can have a concrete impact on everyday life, making it simpler, more productive, and more creative.

For the Professional and the Student

For those who work or study, these tools are like having a supercharged personal assistant. They can summarize long reports or academic articles in seconds, saving hours of reading. They are capable of writing drafts of formal emails, preparing presentations, or correcting texts with surprising accuracy. For developers, models like Gemini 2.5 Pro and Claude 3.7 are exceptional programming partners, capable of writing code, identifying errors (debugging), and suggesting efficient solutions. Students can use them to explain complex concepts, practice a foreign language, or prepare for an exam.

For Creativity and Leisure

AI can also be a source of inspiration and fun. Organizing a dinner? Ask your AI assistant to create an original recipe using only the ingredients you have in the fridge, perhaps with a touch of regional cuisine. Planning a trip to Italy? AI can design a personalized itinerary that includes hidden villages, typical restaurants, and nature trails, based on your interests. Art enthusiasts can ask it to generate images in the style of their favorite painter or to write a poem paying homage to a literary work. The possibilities are limited only by imagination.

A Personal Experience: Pros and Cons

To test these models, I tried using them for a practical task: defining a marketing strategy to launch a new organic extra virgin olive oil produced by a small company in Southern Italy. I asked each “hypothetical” model to outline the target audience, communication channels, and a key message. Gemini 2.5 Pro provided a very detailed market analysis, suggesting a focus on traceability and sustainability. ChatGPT-4.5 excelled in storytelling, creating an engaging narrative linked to the history of the producing family. Claude 3.7 proposed a very ethical approach, focused on transparency and respect for the consumer. The disadvantage? Sometimes answers can be generic if very specific prompts are not provided. The advantage? The speed with which structured ideas are obtained is unmatched.

In Brief (TL;DR)

This article offers an in-depth comparative analysis of new large language models, comparing the capabilities, benchmarks, and multimodal performance of Gemini 2.5 Pro, ChatGPT-4.5, and Claude 3.7.

This article analyzes in detail the performance, reasoning capabilities, and multimodal functionalities of each model to determine the new industry leader.

Through an in-depth analysis of benchmarks, reasoning capabilities, and multimodal performance, we reveal the strengths and weaknesses of each model to understand who will lead the next generation of AI.

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Conclusions

disegno di un ragazzo seduto a gambe incrociate con un laptop sulle gambe che trae le conclusioni di tutto quello che si è scritto finora

The challenge between Gemini 2.5 Pro, ChatGPT-4.5, and Claude 3.7 marks a new frontier for artificial intelligence. There is no absolute winner, but a series of specialized tools with different strengths. The choice of the best model depends strictly on the user’s specific needs: the analytical power of Gemini for complex tasks, the creativity of ChatGPT for content generation, and the ethical and transparent approach of Claude for applications requiring maximum reliability.

For the Italian and European market, the real game is played on cultural adaptation and regulatory compliance. The ability to understand the nuances of the Mediterranean language and culture, combined with compliance with the AI Act, will determine the success of these models in our context. Artificial intelligence offers an extraordinary opportunity to valorize tradition through innovation, supporting businesses and enriching daily life. The future is not a replacement of humans, but a collaboration in which technology amplifies our creativity and ingenuity.

Frequently Asked Questions

disegno di un ragazzo seduto con nuvolette di testo con dentro la parola FAQ
Which AI model is the best among Gemini 2.5 Pro, ChatGPT-4.5, and Claude 3.7?

There is no absolute winner as each model serves different needs. Google Gemini 2.5 Pro excels in complex reasoning and multimodal tasks due to its massive context window. ChatGPT-4.5 is anticipated to lead in creativity, speed, and conversational naturalness. Meanwhile, Claude 3.7 is the preferred choice for users requiring high ethical standards, safety, and transparent logical processes.

How do these new AI models impact the European market and comply with regulations?

The European market is regulated by the AI Act, which prioritizes safety and fundamental rights. While Anthropic focuses heavily on ethics, all providers including Google and OpenAI must ensure transparency and GDPR compliance to operate in the EU. Furthermore, success in this region depends on the ability of these models to adapt to local cultural nuances and support the economic fabric of small and medium-sized enterprises.

What are the specific advantages of Google Gemini 2.5 Pro regarding multimodality?

Gemini 2.5 Pro distinguishes itself by being natively multimodal. This means it can simultaneously understand and process text, images, audio, and video without relying on separate integrations. This capability allows for a more holistic analysis of complex requests, such as analyzing video content textually, and positions it ahead of competitors in terms of deep ecosystem integration.

In what ways can Italian SMEs benefit from using advanced AI models?

Small and medium enterprises can use these tools to bridge the gap between tradition and innovation. Practical applications include digitizing historical archives, optimizing agricultural processes like harvests through climate data analysis, and creating multilingual descriptions for artisanal products. This allows local businesses to expand their reach globally while valorizing their cultural heritage.

Which AI model is recommended for programming and complex logical tasks?

For technical fields like mathematics and programming, Gemini 2.5 Pro is highlighted for its parallel thinking capabilities and ability to process entire code archives. Alternatively, Claude 3.7 is excellent for debugging and strategic analysis due to its extended thinking mode, which explicitly states the logical steps taken to reach a conclusion, offering greater transparency.

Francesco Zinghinì

Electronic Engineer with a mission to simplify digital tech. Thanks to his background in Systems Theory, he analyzes software, hardware, and network infrastructures to offer practical guides on IT and telecommunications. Transforming technological complexity into accessible solutions.

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