news • General

GPT-4 API Launch and Retirement of Legacy Completions Models

OpenAI announces GPT-4 API availability and phases out older models of Completions API by early 2024. - 2026-02-22

GPT-4 API Launch and Retirement of Legacy Completions Models

OpenAI has officially announced the general availability of its GPT-4 API, marking a significant step forward in AI model access for developers. This launch coincides with making the GPT-3.5 Turbo, DALL·E, and Whisper APIs widely available, offering enhanced functionalities and capabilities across various AI applications. Developers can now integrate these modern APIs into their services, driving innovation in how businesses leverage artificial intelligence.

As part of this update, OpenAI is implementing a deprecation plan for older models within the Completions API. These legacy models are scheduled for retirement at the beginning of 2024, signaling a pivotal transition for developers still relying on previous versions. This move aims to encourage users to shift towards newer, more efficient models that provide superior performance and reliability, ensuring that all users can access the latest advancements in AI technology.

Overall, this initiative by OpenAI not only simplifies the developer experience but also emphasizes the company's commitment to maintaining a cutting-edge AI landscape. The phased approach to model retirement will allow users ample time to adapt their applications to leverage the improved capabilities of the GPT-4 API and its contemporaries, ultimately fostering a more robust ecosystem for AI development.

Why This Matters

This development signals a broader shift in the AI industry that could reshape how businesses and consumers interact with technology. Stay informed to understand how these changes might affect your work or interests.

Who Should Care

Business LeadersTech EnthusiastsPolicy Watchers

Sources

openai.com
Last updated: February 22, 2026

Related AI Insights