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OpenAI to retire GPT-4 and GPT-3.5 Turbo models in 2026

By PulseAugur Editorial · [1 sources] ·

OpenAI has announced that several of its older AI models will be shut down on October 23, 2026. This includes popular models like GPT-4 and GPT-3.5 Turbo, as well as various internal or less common models such as O1, O1-Pro, O3-Mini, and O4-Mini. Developers using these models are advised to update their code to use newer versions before the shutdown date. AI

IMPACT Developers using older OpenAI models will need to migrate to newer versions by October 2026 to avoid service disruption.

RANK_REASON Announcement of model deprecation and shutdown dates for existing AI models.

Read on Mastodon — mastodon.social →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

OpenAI to retire GPT-4 and GPT-3.5 Turbo models in 2026

How we ranked this

Signal score
12 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
Announcement of model deprecation and shutdown dates for existing AI models.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
model release, product
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. Mastodon — mastodon.social TIER_1 English(EN) · timetobail ·

    ⏳ Time to bail on OpenAI gpt-4, gpt-3.5-turbo, o1, o3-mini, o4-mini? Act. You can stay. These models shut down on October 23, 2026. Change the model name in you

    ⏳ Time to bail on OpenAI gpt-4, gpt-3.5-turbo, o1, o3-mini, o4-mini? Act. You can stay. These models shut down on October 23, 2026. Change the model name in your code first. Models that shut down: gpt-3.5-turbo, gpt-4, gpt-4-1106-preview, gpt-4-turbo, gpt-4.1-nano, gpt-4o-2024-05…

    LINKS timetobail.com/…/openai-legacy-models-shu…

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