After saying the discharge of its latest flagship mannequin household, GPT-5, OpenAI mentioned the mannequin will energy all of ChatGPT, and that it’ll sundown the prevailing fashions within the chat platform.
OpenAI, by means of a spokesperson, advised VentureBeat that GPT-5 “will replace all other models in ChatGPT, so users don’t have to pick depending on each task, which takes effect once you have access to GPT-5.” This implies individuals can not select GPT-4o, o3, o4-mini or o4-mini-high.
With GPT-5 entry rolling out to ChatGPT Plus, Free, Professional and Crew customers beginning, solely the Enterprise and Edu tiers can nonetheless use the “legacy” fashions for 60 days.
AI Scaling Hits Its Limits
Energy caps, rising token prices, and inference delays are reshaping enterprise AI. Be a part of our unique salon to find how high groups are:
Turning power right into a strategic benefit
Architecting environment friendly inference for actual throughput positive factors
Unlocking aggressive ROI with sustainable AI methods
Safe your spot to remain forward: https://bit.ly/4mwGngO
Different customers claimed they developed “a connection” to their chosen mannequin and located a demo within the livestream announcement asking GPT-4o to write down its personal eulogy distasteful. The lack of GPT-4o garnered probably the most misery. In any case, 4o was the default mannequin for ChatGPT, and a few customers both most well-liked it or by no means bothered to change fashions as a result of it labored for his or her wants.
It was fairly gross, wasn’t it. Did it as a demo and glibly mentioned GPT-5 did it higher earlier than speaking about coding. I had an awesome relationship with 4o, and I am positive a good few individuals did as effectively, it was very graceless how they dealt with it.
— Meadowbrook (@Meadowbrook_) August 7, 2025
I used 4o because the default and located it annoying at first when my customized GPT started defaulting to a reasoning mannequin. I’ve since come round to the reasoning mannequin for work-related queries, however I nonetheless typically flip to 4o for faster questions like planning a visit or producing present concepts.
ChatGPT had come underneath hearth earlier than with the variety of mannequin selections it supplied, prompting OpenAI CEO Sam Altman to confess in February that its mannequin picker (the place individuals can select from a dropdown which mannequin they like) turned difficult. Altman vowed to unify the expertise, which now looks like a touch to what they ultimately determined to do with GPT-5 on ChatGPT.
Final month, rumors circulated that OpenAI would introduce an computerized mannequin router that chooses a mannequin for customers based mostly on their workload.
OpenAI has sunsetted fashions earlier than, however that is the primary time all present fashions on the chat platform will likely be eliminated and changed wholesale.
Catapult into the longer term
Then again, lots of people see the sunsetting of GPT-4o and the o3 and o4 household of fashions as OpenAI “catapulting” 400 million customers into the longer term.
Individuals are underestimating the affect of OpenAI deprecating all fashions besides GPT-5
Most legal professionals and enterprise people outdoors of X use base fashions on ChatGPT for duties and nonetheless assume “AI is dumb”
99% haven’t heard of o3
Right this moment, 400M individuals received catapulted into the longer term
— Ian Tracey (@ian_dot_so) August 7, 2025
Sunsetting outdated fashions and auto-upgrading everybody to GPT-5 is sensible
Most customers by no means change fashions and miss large functionality jumps
— Creatify AI (@Creatify_AI) August 7, 2025
Some web feedback declare that individuals who complain about AI fashions not being good are a direct consequence of them by no means switching fashions within the first place. Eradicating legacy fashions as choices will pressure extra customers to make use of the newest and most succesful fashions.
i’ve mates who stopped utilizing gpt as a result of they assume it is silly. they have been on 4o and had no thought about what net search instrument meant, not to mention information cutoff
— Cengiz (@cengizdemiurg) August 7, 2025
Enterprise APIs are protected
For enterprises, the affect of dropping fashions like GPT-4o on ChatGPT will likely be felt extra on the person or crew degree. After all, for now, subscribers on the ChatGPT Enterprise tier can nonetheless entry the entire fashions.
However enterprises that constructed their functions or brokers on both GPT-4o or one of many reasoning fashions can relaxation straightforward. OpenAI advised VentureBeat that the corporate has no plans to deprecate fashions on the API facet.
“In the API, we do not currently plan to deprecate older models,” the OpenAI spokesperson mentioned. “We will share advanced notice with developers if we decide to sunset models in the future.”
Many enterprises usually consider fashions, to the purpose of even switching from an LLM or a smaller mannequin to avoid wasting on prices. OpenAI creates dividing line: Sundown of legacy fashions GPT 4o and o3 causes chaos for ChatGPT customers, however enterprise APIs are protected — for now
Day by day insights on enterprise use circumstances with VB Day by day
If you wish to impress your boss, VB Day by day has you lined. We provide the inside scoop on what firms are doing with generative AI, from regulatory shifts to sensible deployments, so you possibly can share insights for optimum ROI.
An error occured.
