Can teams still use GPT-4 Turbo in Copilot after the Polaris rollout?
According to reports, an optional three-month fallback period is available for teams that need it, running from August through November 2026. After November, Polaris reportedly becomes the only default option, meaning teams that want to continue using GPT-4 Turbo would need to evaluate alternative arrangements outside Copilot's standard offering.
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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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