… GPT-5.3-Codex launched on February 5, 2026 and will remain available through February 4, 2027 for Copilot Business and Copilot Enterprise users. GitHub Copilot data has shown that GPT-5.3-Codex has a significantly high code survival rate among enterprise customers. …
… Enabling access Enterprise & Business plans : Administrators must enable the GPT-5.4 mini policy in Copilot settings. …
Back to changelog To give enterprises the stability they need for internal security and safety reviews, GitHub has established a new commitment with long-term support LTS models available for Copilot Business and Copilot Enterprise. …
… Copilot Enterprise administrators may need to enable access to alternative models through their model policies in Copilot settings. …
… GitHub Enterprise customers with questions or concerns are encouraged to reach out to their account manager for further assistance. …
… Copilot Enterprise administrators may need to enable access to alternative models through their model policies in Copilot settings. …
… Availability in GitHub Copilot GPT-5.5 will be available to Copilot Pro+, Copilot Business, and Copilot Enterprise users. …
… If you are a Copilot Business or Enterprise subscriber, the relevant policy for Anthropic Claude or OpenAI Codex must be enabled by your administrator. For more information, see “Managing policies and features for GitHub Copilot in your enterprise” in the GitHub docs. …