---
title: "OpenAI will remove GPT-4o and GPT-4.1 from its API on 14 January 2027 and points developers to GPT-6 Luna"
url: https://anawords.com/story/openai-gpt-4o-gpt-4-1-api-shutdown-january-2027
published: 2026-10-15T11:55:49+05:30
updated: 2026-10-15T11:55:49+05:30
section: Models & Launches
author: Mayank Sahu
checked: sources checked by AI, approved by editor
version: 1
---

# OpenAI will remove GPT-4o and GPT-4.1 from its API on 14 January 2027 and points developers to GPT-6 Luna

Four GPT-4-series model versions, including their mini variants and fine-tuned copies, are affected. OpenAI had already retired GPT-4o from ChatGPT in February.

**In short:** OpenAI said on 14 October 2026 that it will remove GPT-4o, GPT-4o mini, GPT-4.1 and GPT-4.1 mini from its API on 14 January 2027. It recommends gpt-6-luna as the replacement for all four. Fine-tuned versions of these models follow the same shutdown date.

## What OpenAI announced

OpenAI’s deprecations page says that on 14 October 2026 it notified developers using certain GPT-4-series models that they will be removed from the API on 14 January 2027.[^1] The affected model versions are:[^1]

- gpt-4o-2024-08-06 and gpt-4o-2024-11-20
- gpt-4o-mini-2024-07-18
- gpt-4.1-2025-04-14
- gpt-4.1-mini-2025-04-14

Fine-tuned models built on these versions follow the same shutdown schedule as their base models.[^1][^3]

## The recommended replacement

OpenAI recommends gpt-6-luna for all four.[^1] Its pricing page lists gpt-6-luna at $0.10 per million input tokens, $0.01 per million cached input tokens and $0.50 per million output tokens on the standard tier.[^2] Shelly Palmer notes that OpenAI advises developers to measure total cost on their own workloads, because token use and reasoning settings affect the bill.[^3]

## Other OpenAI shutdowns already scheduled

The same page lists two notices from 1 October 2026: gpt-5.1, gpt-5.3-codex and gpt-5.4-nano will be removed on 1 April 2027, and the text-to-speech models tts-1, tts-1-hd and two gpt-4o-mini-tts versions on 6 January 2027.[^1]

## Background

GPT-4o has already left ChatGPT. OpenAI retired GPT-4o, GPT-4.1, GPT-4.1 mini and o4-mini from ChatGPT on 13 February 2026, and said at the time that there were no changes in the API.[^4]

## What developers should do

Developers still calling these model versions have about three months to move. Shelly Palmer’s advice is to test representative workloads, check output formats and tool use, and shift production traffic gradually.[^3]

## Fact ledger

- [Confirmed] GPT-4o, GPT-4o mini, GPT-4.1 and GPT-4.1 mini versions will be removed from the API on 14 January 2027. (source 1)
- [Confirmed] Fine-tuned versions follow the same shutdown date as their base models. (source 1)
- [Confirmed] OpenAI recommends gpt-6-luna as the replacement for all four. (source 1)
- [Confirmed] gpt-6-luna costs $0.10 input, $0.01 cached input and $0.50 output per million tokens (standard tier). (source 2)
- [Confirmed] GPT-4o and GPT-4.1 were retired from ChatGPT on 13 February 2026. (source 4)

## Sources

1. [OpenAI API: Deprecations](https://developers.openai.com/api/docs/deprecations) — official
2. [OpenAI API: Pricing](https://developers.openai.com/api/docs/pricing) — official
3. [Shelly Palmer: OpenAI will sunset selected GPT-4 models in January](https://shellypalmer.com/2026/10/openai-will-sunset-selected-gpt-4-models-in-january/)
4. [OpenAI: Retiring GPT-4o and older models](https://openai.com/index/retiring-gpt-4o-and-older-models) — official