Continuing to use GPT-4.5 Preview past deprecation
Don't continue using GPT-4.5 Preview in the API after July 14, 2025.
Transition to GPT-4.1 models, which offer improved or similar performance at a lower cost and latency.
Mistake
Continuing to use GPT-4.5 Preview in the API after its deprecation date.
Why
GPT-4.5 Preview will be turned off on July 14, 2025. GPT-4.1 provides better capabilities at a reduced cost and latency, making it the superior choice for API users.
What it does and when to use it
Developers using GPT-4.5 Preview in the API should transition to GPT-4.1 before July 14, 2025. GPT-4.1 offers comparable or better performance with lower costs and latency, making it the recommended successor.
Sources and credit
- Introducing GPT-4.1 in the API ↗OpenAI · OpenAI News · Apr 14, 2025 · paraphrased
First seen on Subvolts Apr 14, 2025. Updated Sep 11, 2026. Spotted a problem? Tell us.
Where it shows up
- Introducing GPT-4.1 in the APIOpenAI · OpenAI News · Apr 14, 2025
Related in the PlaybookPlaybook →
The Playbook: reusable how-tos, prompts, configs and tips pulled out of the news.
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Questions people ask
- Which AI tools does this work with?
- Any current model. It was seen with in the sources.
- Where did this come from?
- OpenAI (OpenAI News). Subvolts collected, normalized and credited it; the link above opens the original.