OpenAI sets timeline to retire legacy ChatGPT models as it advances new AI generation

The company is continuing its transition to newer AI systems, with GPT-4.5 scheduled for retirement in June and additional legacy models and features set to be phased out in the coming months.

OpenAI has outlined plans to discontinue several of its older ChatGPT models as part of an ongoing effort to streamline its AI offerings and focus on more advanced systems. According to the company’s latest product updates, GPT-4.5 will be retired on June 27, marking the end of support for one of the final models from an earlier generation of ChatGPT.

The move reflects OpenAI’s broader strategy of consolidating its model lineup around newer architectures designed to deliver improved performance, enhanced reasoning capabilities, and greater efficiency. While the company has not detailed all of the technical differences between generations, it has increasingly encouraged users to adopt its latest AI models as they become available.

Users subscribed to paid ChatGPT plans will continue to have access to GPT-4.5 until its retirement date. Meanwhile, users on free plans have already been transitioned to newer-generation models introduced by the company in recent updates. OpenAI has also indicated that additional legacy models, including OpenAI o3, are expected to be phased out later this year.

Transition brings mixed reactions

The retirement of older models has generated varied responses across the user community. While many welcome the improvements offered by newer AI systems, some users have expressed a preference for earlier models, citing differences in writing style, behavior, or task-specific performance.

Industry observers note that long-time users often develop familiarity with particular models and workflows, making transitions more noticeable even when newer systems provide broader capabilities. Such reactions have become increasingly common as AI providers update their platforms at a faster pace.

Additional changes planned for ChatGPT features

Alongside model retirements, OpenAI is also making adjustments to certain ChatGPT features. The company confirmed that Canvas, a workspace designed for editing code and text alongside chatbot interactions, will not be supported on some of its latest model variants.

Subscribers will continue to have temporary access to the feature through older supported models, but its availability is expected to diminish as the transition progresses. The changes underscore OpenAI’s efforts to simplify its product portfolio while directing resources toward next-generation AI experiences and capabilities.

The phased rollout is intended to provide users with time to adapt while ensuring continued access to newer tools and technologies across the ChatGPT platform.