OpenAI to Retire GPT-4.5: The End of Its Largest AI Model in API Services
In a significant development for developers and AI enthusiasts, OpenAI announced on Monday that it will soon phase out access to its advanced AI model, GPT-4.5, via the API. This model, which was launched in late February, will no longer be available for developers after July 14, prompting a shift towards other models in OpenAI’s portfolio.
Transitioning from GPT-4.5 to GPT-4.1
As part of this transition, developers will need to adopt GPT-4.1, which OpenAI has positioned as the preferred alternative. According to an OpenAI spokesperson, the new model offers comparable or enhanced performance compared to GPT-4.5 while being more cost-effective.
Key Features of GPT-4.1
- Improved performance in writing and persuasiveness
- More economical compared to GPT-4.5
- Designed to support future model developments
OpenAI’s spokesperson emphasized that “we will [be] deprecating GPT-4.5 to prioritize building future models,” highlighting the company’s commitment to innovation and efficiency.
Availability of GPT-4.5
It is important to note that while GPT-4.5 will be removed from the API, it will still be accessible through ChatGPT in a research preview for paying customers. This means that users can continue to explore its capabilities in this context.
The Performance of GPT-4.5
Code-named Orion, GPT-4.5 was developed using an unprecedented amount of computing power and data. Despite its enhancements over the earlier version, GPT-4o, it does not meet the “frontier level” standards in several industry benchmarks. This limitation has raised questions about its long-term viability.
The Cost of Running GPT-4.5
OpenAI has acknowledged the high operational costs associated with GPT-4.5. The pricing structure for this model is quite steep:
- $75 for every million input tokens (approximately 750,000 words)
- $150 per million output tokens
This pricing makes GPT-4.5 one of the most expensive offerings from OpenAI, prompting the company to consider its long-term availability.
Conclusion
As the industry progresses, the transition from GPT-4.5 to GPT-4.1 reflects OpenAI’s strategy to enhance performance while managing costs effectively. For more updates on AI developments, visit OpenAI’s official blog.
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