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Model Launch 1 min read

Retiring GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini in ChatGPT

Source: OpenAI Blog
January 29, 2026 · 7mo ago
Visual for Retiring GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini in ChatGPT

Summary

On February 13, 2026, alongside the previously announced retirement⁠ of GPT‑5 (Instant, Thinking, and Pro), we will retire GPT‑4o, GPT‑4. 1, GPT‑4.

Why It Matters

New model releases reshape what developers can build. As capabilities advance, existing applications can be upgraded and entirely new use cases become feasible — making it critical for engineers to evaluate these releases early.

#openai

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