OpenAI is sending GPT-4 out to pasture

Remember the jaw-dropping moment two years ago when GPT-4 aced the bar exam and kicked off the modern AI boom? Well, the model that started it all is officially heading out to pasture.

OpenAI published a changelog on Thursday confirming that GPT-4 will be retired from ChatGPT on April 30. Its multimodal sibling, GPT-4o, will completely take over its duties.

Passing the torch to GPT-4o

For regular ChatGPT subscribers, losing GPT-4 will barely register as an inconvenience.

OpenAI called GPT-4o the natural successor to the original model. According to the company, GPT-4o beats GPT-4 across writing, coding, and STEM tasks, while being substantially faster and native to multimodal inputs.

Recent updates have also sharpened GPT-4o's ability to follow complex prompts, solve reasoning puzzles, and keep conversations feeling natural.

If your backend runs on the old model, do not panic just yet. OpenAI confirmed that developers will still have full access to GPT-4 via the API after the April 30 cutoff.

In its release notes, OpenAI gave a nod to the pioneer, noting that GPT-4 marked a pivotal moment in ChatGPT's evolution and laid the foundation for the speed and creativity of modern systems.

The pipeline is getting crowded

Retiring GPT-4 is also about making room on the shelf. OpenAI is getting ready to drop a massive wave of new hardware-hungry models.

According to reverse engineer Tibor Blaho, who posted screenshots shared via TechCrunch on Friday, OpenAI is preparing several models for launch. The leak pointed to o3, o4-mini, and an unreleased GPT-4.1 lineup with nano and mini spin-offs.

That comes right after OpenAI rolled out a research preview of GPT-4.5 in February, framed explicitly as a bridge toward GPT-5. The old menu simply had to go.

Why it matters

For users, this is clean progress without the growing pains. GPT-4 was a breakthrough in its day, but by today's standards, it is sluggish and expensive. GPT-4o is superior in nearly every practical task, so switching completely is a no-brainer.

For OpenAI, running aging foundational models burns high-cost compute that could be routed toward training and serving next-gen systems. Shuttering GPT-4 on the web frees up server bandwidth for the upcoming o3 and GPT-4.1 onslaught.

We think this shows how ruthlessly fast the frontier moves. In AI, a two-year-old flagship is already ancient tech. OpenAI isn't holding onto nostalgia, and neither should you.