GPT-4.5 Is Here: What You Need to Know and the Best LLMs to Use in 2025
OpenAI has dropped GPT-4.5, its most advanced AI language model yet, pushing the boundaries of what AI can do. Let’s break down what it is, how you can access it, and whether it’s worth the hype.
What’s New in GPT-4.5?
GPT-4.5 builds on its predecessors with key upgrades that make it smarter, more intuitive, and more reliable. Here’s what stands out:
Expanded Knowledge Base – GPT-4.5 has been trained on a larger dataset, meaning it understands a broader range of topics with greater depth.
Better User Intent Alignment – It’s more precise in understanding what you actually mean, making responses feel more relevant and less robotic.
Emotional Intelligence – OpenAI has worked on making GPT-4.5 respond with more nuance, making conversations feel natural.
Fewer Hallucinations – AI “hallucinations” (aka confidently wrong answers) have been significantly reduced, making it a more reliable source of information.
How to Access GPT-4.5
Right now, GPT-4.5 is available only to ChatGPT Pro users for $200/month. OpenAI has plans to roll it out to Plus and Team users next week and then Enterprise and Edu users the following week.
The Catch?
GPT-4.5 is powerful, but it’s also resource-heavy, meaning it costs more to run. OpenAI is working on scaling its infrastructure to handle demand, but for now, access is limited.
Should You Switch?
If you’re already using an AI model that meets your needs, don’t get lost chasing the next big thing. Pick one or two LLMs and stick with them. Here are my top 5 LLMs in 2025 and what they do best:
Top 5 LLMs You Should Consider
1. OpenAI's GPT (4.5)
The OG of AI chat models. OpenAI’s GPT models are known for their reliability, versatility, and massive user base. With GPT-4.5, you get strong reasoning skills, creative responses, and access to OpenAI’s top-tier AI capabilities.
Great for: Businesses, creators, developers, and anyone who needs a high-quality AI assistant.
2. Anthropic's Claude 3.7 Sonnet
Claude is all about safe and ethical AI. If you want an AI that prioritizes clear, responsible responses while still delivering strong conversational ability, Claude 3.7 Sonnet is a solid choice.
Great for: Research, legal and compliance work, and those who prioritize AI ethics.
3. Grok by xAI
Elon Musk’s answer to OpenAI, built for free speech and open conversation. Grok is available within X (formerly Twitter) and offers a more unfiltered approach to AI interaction.
Open Source: This means developers can modify and improve the AI for their own needs.
Great for: Open-source enthusiasts, developers, and people who want AI embedded into social media.
4. Google's Gemini 2.0 Flash
Google’s AI powerhouse. Gemini 2.0 is a multimodal model, meaning it can process and generate text, images, and even video.
Try it in: Google AI Studio, a playground for testing AI applications.
Great for: Students, researchers, and those who want AI integrated into Google’s ecosystem.
5. Meta's LLaMA 3
The best open-source LLM right now. Meta’s LLaMA 3 is a free, community-driven AI model that lets developers tweak and fine-tune it for specific needs.
Open Source: Unlike proprietary models, anyone can customize LLaMA 3 for their own applications.
Great for: AI developers, researchers, and those who want full control over their AI model.
Final Thoughts
GPT-4.5 is a step forward in AI, but that doesn’t mean you need to switch everything up. Stick with what works for you and don’t get distracted by hype. Whether you go with OpenAI, Anthropic, Google, Meta, or Grok, the key is choosing an AI model that fits your needs and sticking with it.
Which LLM are you using? Drop a comment and let me know!