OpenAI Deprecates GPT-4.5 API, Sparking Developer Backlash

▼ Summary
– OpenAI will remove GPT-4.5 Preview from its API on July 14, 2025, but it remains available for individual ChatGPT users via the dropdown menu.
– Third-party developers using GPT-4.5 must switch to another OpenAI model, as it will no longer be accessible through the API.
– The AI community expressed disappointment and confusion, with some users praising GPT-4.5’s reliability and questioning its short lifespan.
– OpenAI had announced the deprecation in April 2025, framing GPT-4.5 as experimental and stating learnings would inform future models.
– Developers are encouraged to migrate to GPT-4.1 or other models, with less than a month left before the API shutdown.
OpenAI’s decision to retire GPT-4.5 from its API has sparked frustration among developers who relied on the model for their projects. The company confirmed the change through emails sent to users, clarifying that while the model will remain accessible to ChatGPT subscribers, third-party applications built on its API must transition to alternatives by July 14, 2025.
The announcement triggered widespread discussion on social media, with many expressing disappointment over losing a tool they considered integral to their daily workflows. Some praised GPT-4.5’s consistency and nuanced output, while others questioned OpenAI’s decision to introduce a model only to phase it out shortly after. Developers now face the challenge of migrating to one of OpenAI’s numerous remaining API options, including the newer GPT-4.1, which the company has positioned as the recommended replacement.
Though the move may seem sudden, OpenAI had signaled its intentions months earlier. During the GPT-4.1 launch in April, the company framed GPT-4.5 as an experimental release designed to gather insights for future improvements, particularly in creative applications. The recent email served as a final reminder, giving developers a three-month window to adjust their integrations.
Behind the scenes, speculation swirled about the reasons for the deprecation. Some pointed to high operational costs, noting OpenAI’s recent price cuts for GPT-3.5 as evidence of shifting priorities. Others theorized that the model’s performance, while strong in certain benchmarks, didn’t align with the company’s long-term strategy.
For teams still using GPT-4.5, time is running short. OpenAI has encouraged developers to consult its forums for migration guidance, but the abrupt change leaves little room for error. As the deadline approaches, the broader AI community will be watching closely to see how OpenAI balances innovation with the stability developers depend on.
(Source: VentureBeat)