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Silicon Flash > Blog > AI > OpenAI’s Surprise Move: Discontinuing GPT-4o, o3, and More Leaves Users in Disarray, But Enterprise API Stays Put (for the Time Being)
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OpenAI’s Surprise Move: Discontinuing GPT-4o, o3, and More Leaves Users in Disarray, But Enterprise API Stays Put (for the Time Being)

Published August 8, 2025 By Juwan Chacko
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3 Min Read
OpenAI’s Surprise Move: Discontinuing GPT-4o, o3, and More Leaves Users in Disarray, But Enterprise API Stays Put (for the Time Being)
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Summary:
1. OpenAI announced the release of GPT-5, replacing all existing models in ChatGPT.
2. Users expressed surprise and frustration over the sudden removal of legacy models.
3. While some see this as a step towards progress, others are concerned about the impact on enterprise users.

Title: OpenAI Unveils GPT-5: A New Era for ChatGPT Users

OpenAI recently made waves in the AI community with the introduction of GPT-5, the latest flagship model set to revolutionize ChatGPT. This announcement marked a significant shift as OpenAI decided to sunset all existing models, including the popular GPT-4o and o3, in favor of the new powerhouse, GPT-5. Users were caught off guard by this decision, with many expressing surprise and frustration at the sudden removal of their trusted models.

For ChatGPT users, the transition to GPT-5 meant letting go of familiar models that they had come to rely on for everyday queries. The adjustment period was met with mixed reactions, as some users found it challenging to adapt to the new model’s interactions and response times. The loss of GPT-4o, in particular, garnered the most distress, as it was the default choice for many users who found it suitable for their needs.

Despite the initial backlash, some users viewed the sunsetting of legacy models as a necessary step towards progress. OpenAI’s decision to streamline the model selection process was seen as a strategic move to propel users into the future. By removing outdated models and auto-upgrading everyone to GPT-5, OpenAI aimed to ensure that users had access to the latest and most capable models, ultimately enhancing their AI experience.

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On the enterprise side, the impact of losing models like GPT-4o on ChatGPT was felt more at the individual or team level. However, enterprises that had built their applications on these models were assured that the API side would remain unaffected. OpenAI confirmed that there were no plans to deprecate older models in the API, providing a sense of security for businesses relying on these models for their AI applications.

In conclusion, while the transition to GPT-5 may have caused chaos for some ChatGPT users, it represents a significant leap forward in AI technology. By embracing the latest advancements and streamlining the model selection process, OpenAI is paving the way for a more efficient and intelligent AI ecosystem. As users adapt to the new changes, the future looks promising for ChatGPT and its community of AI enthusiasts.

TAGGED: API, Disarray, Discontinuing, enterprise, GPT4o, Leaves, Move, OpenAIs, Put, Stays, Surprise, time, users
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