On April 14th, 2025, we notified developers that the
gpt-4.5-previewmodel is deprecated and will be removed from the API in the coming months.
Shutdown date Model / system Recommended replacement 2025-07-14 gpt-4.5-previewgpt-4.1
6 Likes
Itāll be sad to see it go, but I understand, itās very expensive, Iām hesitant to continue using it myself due to the costs and my huge computations I need to run. This is not easy Iām sure, balancing power with efficiency is non-trivial.
2 Likes
In my benchmarks 4.1 is better than 4o which is great for most applications, but far from 4.5-preview. I guess size matters
3 Likes
Booooooooooooooooooooo
(User expresses dismay at the news and wishes to protest the change)
Canāt you just, like, double the price? If you do smart deployments and smart scaling, it should cost next to nothing in terms of overhead to have a couple of machines hold it on standby while they run 4.1 or what have you.
Is it going away on azure too? I havenāt checked yet.
3 Likes
Rather, it will be a self-solving problem at the end of the month, when OpenAI stops giving out $75 of free tokens a day to gather our prompts and good outputs sent to the model.
The only model that could follow deliberately-constructed instructions to turn ChatGPT-style output into forumās MathJax LaTeX instead of just repeating it back.
2 Likes
Yep, may 26th. Dead and gone.
Why are we going backward?
Whyyyyy 
I donāt need ābetterā coding, I need better zero shot understanding 
And if 4.5 really was the last big model, then OpenAI really has peaked and is only going downhill from here.
3 Likes
Iām sad to see this model go. To me, this is a case where existing benchmarks donāt fully capture the true capabilities of this achievement.
Perhaps itās because grading outputs for specific use casesālike understanding intentārequires real humans rather than relying solely on an LLM or automated scripts?
If GPT-5 includes a router model to forward user queries to the appropriate specialized models, this would be the only model worth considering as the router. But I digressā¦
3 Likes
Please donāt! GPT-4.5 is so much better in every aspect.
You lied to us when you tried to sell us GPT-4o as ābetterā, but I think everyone knows, that itās a slimmed down/watered down version of GPT-4 that you just pushed to perform better at certain benchmarks.
I wonāt accept that again!
4 Likes
Iād really like to know whatās behind this decision. 4.5 has a depth and quality that no other model comes close to providing. One day itās praised extensively in a dedicated video, and the very next day they announce its removal from the API. I completely agree with the statements made in the video: GPT-4.5 is a wonderful model whose scale and capabilities are simply irreplaceable for many tasks.
I genuinely hope that the model will at least remain available in ChatGPT.
If itās too expensive to run, then let OpenAI raise prices accordingly. But removing it entirely would represent a clear technical step backward, perhaps for the first time ever.