---
title: "What happened to gpt-3.5-turbo-instruct? Model retired on 28 SEP 2026"
canonical_url: https://cookiesforai.app/ai-changelog/tools/gpt-3-5-turbo-instruct
markdown: https://cookiesforai.app/ai-changelog/tools/gpt-3-5-turbo-instruct.md
publisher: "CookiesForAI"
last_updated: 2026-10-20T20:07:09+02:00
type: status
summary: "gpt-3.5-turbo-instruct: Model retired on 28 SEP 2026. Access to the gpt-3.5-turbo-instruct model is shut down, with gpt-5.6-terra as the recommended replacement."
---

> Full index of this site: https://cookiesforai.app/llms.txt  

# What happened to gpt-3.5-turbo-instruct?

**Model retired on 28 SEP 2026.** Access to the gpt-3.5-turbo-instruct model is shut down, with gpt-5.6-terra as the recommended replacement. Source: [OpenAI API deprecations](https://platform.openai.com/docs/deprecations.md).

## What this means

On 28 SEP 2026, OpenAI shuts down access to gpt-3.5-turbo-instruct. This affects developers who still call it through the API. Move to gpt-5.6-terra, the recommended replacement.

## More changes from OpenAI

- [Assistants API](https://cookiesforai.app/ai-changelog/tools/assistants-api): Replaced on 26 AUG 2026
- [babbage-002](https://cookiesforai.app/ai-changelog/tools/babbage-002): Model retired on 28 SEP 2026
- [ChatGPT group chats](https://cookiesforai.app/ai-changelog/tools/chatgpt-group-chats): Access changed on 09 JUL 2026
- [ChatGPT on WhatsApp](https://cookiesforai.app/ai-changelog/tools/chatgpt-on-whatsapp): Access changed on 15 JAN 2026
- [davinci-002](https://cookiesforai.app/ai-changelog/tools/davinci-002): Model retired on 28 SEP 2026
- [gpt-3.5-turbo-1106](https://cookiesforai.app/ai-changelog/tools/gpt-3-5-turbo-1106): Model retired on 28 SEP 2026
- [gpt-5.4-cyber](https://cookiesforai.app/ai-changelog/tools/gpt-5-4-cyber): Model retired on 11 SEP 2026
- [OpenAI Operator](https://cookiesforai.app/ai-changelog/tools/openai-operator): Replaced on 17 JUL 2025
- [Sora](https://cookiesforai.app/ai-changelog/tools/sora): Shut down on 24 SEP 2026

- Made by: OpenAI
- Website: https://platform.openai.com/
- Status: Model retired on 28 SEP 2026
- Checked: 20 OCT 2026

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