GlossaryProductsNew to AI

Deprecation

Also written: Deprecate, Breaking Changes

Phasing out older AI models or features, signaling they will be removed and replaced by newer versions.

In plain terms

Deprecation means that a company is announcing that an older version of an AI model, software, or feature will no longer be supported or available in the future. This is a common practice in technology to manage resources and encourage users to adopt newer, often better, versions.

For example, a company might deprecate an older AI model that is less efficient or capable than its latest model. They will typically provide a timeline for when the older model will be completely shut down, giving users time to switch to the new one.

The expert version

Deprecation is the formal process of marking a software component, API, model, or feature as obsolete, indicating that it will be removed from future releases or support cycles. This signals to users and developers that they should migrate to newer alternatives to avoid disruption. The process often involves a schedule for eventual retirement, allowing for a transition period.

In the context of frontier AI labs, deprecation commonly applies to AI models. Labs may deprecate older models to focus development and resources on newer, more powerful, or more cost-effective architectures. This also allows them to manage the complexity of maintaining multiple model versions and to implement new safety or performance standards that may not be compatible with older models.

Why it matters now

Frontier AI labs are actively deprecating older models and features as they release new versions. This is necessary to manage complexity and focus resources on current technology. Users are being notified to update their integrations to avoid disruptions when these older components are retired.

Where it shows up 7 items, newest first
How each company uses it
Anthropic Claude
Anthropic is detailing its process for retiring Claude Opus 3, including commitments to preserving model weights and documenting preferences.
Meta Meta AI
Meta AI is updating its Graph and Marketing APIs to new versions, which involves changes for developers.
Microsoft Copilot
Microsoft Copilot is notifying users about the upcoming deprecation of selected GitHub Copilot models, urging them to update integrations.
OpenAI ChatGPT
OpenAI has made updates to its API, including changes that may affect how users interact with older functionalities.
Related terms

API versioningModel lifecycleSoftware obsolescenceLegacy systemsEnd-of-lifePlatform updates

Often confused with
Retirement
Retirement is the final act of shutting down a model or service, whe
Obsoletion
Obsoletion is the state of being outdated, while deprecation is the
Versioning
Versioning refers to the management of different iterations of a pro
Origin

The term 'deprecation' originates from software engineering, where it has long been used to signal that a feature or component is outdated and will be removed in a future release. It's a standard practice for managing software evolution and backward compatibility. Source ↗

Try this about 5 minutes

Look for a "Deprecation Notices" or "API Updates" section on the website of an AI provider like OpenAI or Anthropic. Read about a specific model or feature that is being deprecated and note the timeline provided for its removal. Then, try to find documentation for the newer, recommended version to understand the differences.

Try it: Playbook entries that use thisPlaybook →

The Playbook: reusable how-tos, prompts, configs and tips pulled out of the news.

Questions people ask

Why do companies deprecate AI models?
Companies deprecate AI models to focus resources on newer, more advanced versions, improve efficiency, and simplify maintenance. It helps them stay competitive and offer the best possible technology to users.
How long does deprecation usually take?
The timeline for deprecation varies greatly by company and product. It often involves a grace period, ranging from months to years, allowing users to transition to newer alternatives before the old version is permanently removed.

First seen on Subvolts Jun 13, 2023. Updated Oct 15, 2026. Written by an AI model from the items above and reviewed against them weekly; report an error.