What is Project Polaris and how does it relate to GitHub Copilot?
According to reports, Project Polaris is an in-house coding model developed by Microsoft, unveiled at Build 2026 in June. It is reportedly designed to replace GPT-4 Turbo as the default model powering GitHub Copilot's code completions and suggestions across all subscriber tiers including Individual, Business, and Enterprise.
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Microsoft Just Replaced GPT-4 Inside GitHub Copilot With Its Own ModelProject Polaris, Microsoft's in-house coding model, is reportedly replacing GPT-4 Turbo as the default engine behind GitHub Copilot for all subscribers.
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