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GitHub Copilot adds a cheaper, more efficient custom code model

Tuesday, August 11, 2026Read Original

Details

  • Mustafa Suleyman says GitHub Copilot is now using GitHub’s latest custom code model.
  • The model is described as 25% more efficient, higher quality, and one quarter the cost of the model launched in June.
  • The update is already live inside GitHub Copilot, so users can try it immediately.
  • GitHub’s recent Copilot engineering post says the company has been improving suggestion quality, latency, throughput, and token efficiency across the product.
  • The announcement points readers to a blog post for more details, suggesting the change is part of a broader Copilot performance push.
  • The move continues GitHub’s effort to make Copilot faster and cheaper to serve while preserving or improving code completion quality.

Impact

This update signals that Microsoft and GitHub are continuing to optimize Copilot around cost efficiency rather than just model size. In a market where OpenAI-, Anthropic-, and Google-backed coding tools are all competing on quality, latency, and price, a lower-cost custom model can improve margins and make Copilot easier to scale across enterprise users. The timing also reinforces a broader industry shift toward specialized coding models and routing systems that reduce token use without sacrificing developer experience.

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