GitHub Copilot Deprecates GPT-5.2 and GPT-5.2-Codex Models

What changed

As of June 5, 2026, GitHub Copilot has deprecated the GPT-5.2 and GPT-5.2-Codex models across most of its features, including Copilot Chat, inline edits, ask, agent modes, and general code completions. The GPT-5.2 model remains accessible specifically for Copilot code review functionalities. Developers are directed to update their integrations and workflows to utilize the suggested alternative models: GPT-5.5 as a replacement for GPT-5.2, and GPT-5.3-Codex for GPT-5.2-Codex.

For GitHub Enterprise customers, administrators have the ability to enable access to these alternative models through their model policies within Copilot settings. Verification of model availability can be done via individual Copilot settings, ensuring the policy is active for the desired model. Once enabled, the new models will appear in the Copilot Chat model selector in VS Code and on github.com. No explicit action is needed to remove the deprecated models from existing configurations.

Why it matters for builders

Developers using GitHub Copilot need to be aware of these model changes to ensure their tools continue to function as expected. Migrating to the recommended GPT-5.5 and GPT-5.3-Codex models will be necessary for accessing the full suite of Copilot's AI-powered coding assistance features. This transition requires attention to workflow adjustments and potential policy updates for enterprise users.

Practical impact

Builders should proactively update any custom scripts, integrations, or configurations that explicitly reference GPT-5.2 or GPT-5.2-Codex. For those using Copilot Enterprise, administrators should review and update model policies to enable GPT-5.5 and GPT-5.3-Codex. Checking the Copilot documentation for the latest model information and guidance on migration is recommended. Developers can verify model availability in their VS Code or github.com Copilot Chat interfaces after administrator policy updates.

Caveats and source limits

The source provides a clear deprecation date and suggested alternatives but does not offer performance benchmarks or detailed feature comparisons between the deprecated and new models. Information regarding specific API changes or migration guides beyond updating model selection is not detailed. The exact scope of availability for GPT-5.2 in code review is also not elaborated upon.