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GitHub Changelog

GitHub has expanded the model picker for Copilot coding agent to Business and Enterprise users, following its December 2025 launch for Pro and Pro+ subscribers. Users can now select from multiple models including Claude Opus 4.5/4.6, Claude Sonnet 4.5/4.6, and several GPT-5 Codex variants when delegating tasks to the autonomous background agent. The model picker is accessible when assigning issues on github.com, from the agents tab, agents panel, GitHub Mobile, or the Raycast launcher. An 'Auto' option lets Copilot automatically choose the best model based on availability and performance.

Copilot coding agent model picker for Copilot Business and Enterprise