OpenAI recently unveiled its most expensive AI model, accessible to developers on all paid tiers. Described as an ‘innately smarter model,’ businesses are eager to assess GPT 4.5 vs. 4.0 to see how it compares and whether it can contribute to their productivity. Is the new model worth the hype, or is it business as usual compared to other popular offerings like Claude, Grok 3, and Gemini?
Table of Contents
The Roundup
In this quick Coalition Technologies overview, you’ll learn more about:
- How businesses can harness this model for their needs
- What’s different with OpenAI’s latest model, including:
- How scaled unsupervised learning can improve business outcomes
- Whether training larger and more powerful models directly translates to real-world value
- The shortcomings of the new ChatGPT model
How is ChatGPT 4.5 Different?
Pre-trained AI models like DeepSeek’s R1 and Google’s Gemma have largely plateaued in tasks like coding. OpenAI’s latest model hopes to break through that plateau with several notable improvements:
- More Extensive Knowledge Base: 4.5 touts a more recent data cutoff (June 2024). While this is still behind other models like Grok 3, the addition of real-time search capabilities should allow it to offer more relevant insights into market data for fast-moving sectors like retail and tech.
- Improved Contextual Understanding: OpenAI claims its new model has a firmer grasp of user intent, making it more effective at picking up more subtle queues in user prompts. For example, if you’re using ChatGPT 4.5 to draft a client email, it should be better at nailing your tone without needing more revisions.
- Better EQ: The new model excels at emotional intelligence when comparing GPT 4.5 vs. 4.0. It is better suited to crafting more intuitive responses than overwhelming users with information they might not need. This is especially useful for businesses seeking an AI-powered customer service or social media marketing solution.
- Fewer Hallucinations: OpenAI highlights 4.5 as an example of ‘scaled unsupervised learning.’ This model doesn’t think before responding, but it has been trained on a larger pool of information with Azure AI supercomputers. Ultimately, this should reduce the risk of fabricated facts slipping into responses.

ChatGPT 4.5 in Action
Is 4.5 more than the sum of its parts, or are these incremental improvements underwhelming when put to the test? AI experts like Fireship have highlighted cost as a significant pain point for the newer model, and it’s certainly worth considering if you’re looking for better ROI.
| Model | Cost per million tokens (Output) |
| Gemini 2.0 Flash | $0.4/M |
| Deepseek V3 | $1.10/M |
| Claude 3.7 Sonnet (reasoning) | $15/M |
| ChatGPT 4.5 | $150/M |
ChatGPT 4.5’s pricing puts it at a massive disadvantage, considering even reasoning models like Anthropic’s Claude 3.7 Sonnet are cheaper. Training larger and more powerful models will naturally result in more significant costs, but are the productivity improvements worth it?
When comparing GPT 4.5 vs. 4.0, the former is superior in creative intelligence, professional queries, and everyday queries.

That said, despite being an innately smarter model, 4.5 falls flat in coding tasks compared to other models. The Aider polyglot benchmark tested ChatGPT 4.5 against other top models, and the results paint a sobering picture.

Claude 3.7 Sonnet

ChatGPT 4.5
The latest OpenAI model performs worse at coding tasks than other popular options, such as Claude 3.7 Sonnet. It also lags behind o3-mini in science and math. More importantly, performance does not justify the difference in total cost.
ChatGPT 4.5 For Businesses
Despite the cost increase, the new model is notably faster than OpenAI’s older creations and other reasoning models on the market since it does not have to think before responding. Businesses can leverage it to:
- Create more human-like interactions for customer support scenarios.
- Create marketing assets* that require a more in-depth knowledge base.
- Upload data files like financial reports for analysis.
*: While 4.5 hallucinates less than previous iterations, they are still there. We don’t recommend relying entirely on this AI model for marketing solutions.
Give Your Business The AI Boost
Confused by all the GPT4.5 vs. 4.0 discussions? Work with a leading AI SEO agency to harness the AI’s full potential for your business. Show up in ChatGPT 4.5, Gemini, and Alexa responses with digital marketing strategies specially crafted for your brand. Contact Coalition Technologies for a free consultation today.