Which AI model should I use with GitHub Copilot?

If you’ve ever wondered which AI model is the best fit for your GitHub Copilot project, you’re not alone. Since each model has its own strengths, picking the right one can feel somewhat mysterious.

The TL;DR

• 💳 Balance between cost and performance: Go with GPT-4.1, GPT-4o, or Claude 3.5 Sonnet.

• 🪙 Fast, lightweight tasks: o4-mini or Claude 3.5 Sonnet are your buddies.

• 💎 Deep reasoning or complex debugging: Think Claude 3.7 Sonnet, o3, or GPT 4.5.

• 🖼️ Multimodal inputs (like images): Check out Gemini 2.0 Flash or GPT-4o.

Let’s talk models...

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