GPT-4.5 is here: Smarter, faster, but not yet revolutionary 🧠

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OpenAI has just unveiled GPT-4.5, the latest evolution of its artificial intelligence model. This version, already available to ChatGPT Pro subscribers ($200/month), will be rolled out to Plus subscribers ($20/month) starting next week. So, what’s new? And most importantly, is it really worth it? Let’s break it down.

Improvements under the hood 🚀

GPT-4.5 is designed to be more powerful than GPT-4o, thanks to intensive training on massive amounts of data. OpenAI has optimized learning by integrating advanced techniques such as « chain-of-thought, » which helps the AI structure its responses in a more logical and natural way. The result: fewer hallucinations and more precise answers.

Another interesting aspect is that GPT-4.5 is not just smarter—it’s also more intuitive and emotionally nuanced. It’s designed to better understand users’ tone and intent, making conversations more fluid and natural. Imagine an assistant that doesn’t just respond but adapts its tone and style based on your mood.

More capable, but not revolutionary 🤔

While GPT-4.5 is a notable improvement, OpenAI itself admits that it’s not a groundbreaking leap forward. Unlike more advanced models like GPT-4o or o3-mini, GPT-4.5 excels at practical tasks and content creation but is not designed for complex reasoning.

However, it is 10 times more efficient than GPT-4 in terms of raw performance. This means it can generate responses faster while optimizing resource consumption. But let’s be clear: GPT-4.5 is a transitional step before GPT-5, which promises to be a true revolution.

Security and ethics: OpenAI stays in control 🔐

With a more powerful AI come greater responsibilities. OpenAI has strengthened GPT-4.5’s security by implementing an « Instruction Hierarchy. » In simple terms, the model prioritizes system rules over user requests, reducing the risk of circumvention or misuse.

Internal tests show that GPT-4.5 refuses to generate inappropriate content 99% of the time. Additionally, OpenAI closely monitors its behavior to prevent it from becoming too creative to the point of fabricating incorrect information.

The last stop before GPT-5 🚀

While GPT-4.5 is a welcome upgrade, the real anticipation is for GPT-5. OpenAI is already teasing a model that will combine speed, contextual understanding, and advanced reasoning. Rumors suggest that GPT-5 could arrive much sooner than expected—possibly as early as May 2025.

In the meantime, GPT-4.5 remains an interesting update for those who use ChatGPT daily, particularly for writing, coding, or content creation tasks. But for those expecting a revolution, patience is still required.