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OpenAI to retire GPT-5 and O3 models on Dec 11, 2026

By PulseAugur Editorial · [1 sources] ·

OpenAI is retiring several older models, including GPT-5 and O3 series, from its API on December 11, 2026. These models and their fine-tuned versions will cease to function, with OpenAI recommending users migrate to the GPT-5.6 family, specifically GPT-5.6-Sol, GPT-5.6-Terra, and GPT-5.6-Luna. The company also plans to shut down its Evals platform and reusable prompts API on November 30, 2026, and older GPT Image models on December 1. Developers are advised to identify all instances of these models in their code and test their applications with the new models before the deprecation date to ensure continued functionality and prevent unexpected behavior. AI

IMPACT Developers must update their applications to use newer models before December 2026 to avoid service disruptions.

RANK_REASON The article details the deprecation of specific AI models and associated platforms, providing guidance on migration and testing, which falls under tooling and product lifecycle management.

Read on dev.to — LLM tag →

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

OpenAI to retire GPT-5 and O3 models on Dec 11, 2026

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Signal score
40 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
The article details the deprecation of specific AI models and associated platforms, providing guidance on migration and testing, which falls under tooling and product lifecycle management.
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.
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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.

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COVERAGE [1]

  1. dev.to — LLM tag TIER_1 English(EN) · Driftline ·

    OpenAI retires gpt-5 and o3 on 11 December 2026: what to change and how to test it

    <p>On 11 December 2026, OpenAI removes gpt-5, gpt-5-mini, gpt-5-nano, gpt-5-pro, o3 and o3-pro from the API, together with their dated snapshots. From that day, API calls to these models fail. OpenAI recommends gpt-5.6-sol, gpt-5.6-terra and gpt-5.6-luna as replacements.</p> <p>C…

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