GitHub Copilot app gets BYOK for custom models

What's new

• Custom providers: add OpenAI, Azure OpenAI, Microsoft Foundry, Anthropic, LM Studio, Ollama, and OpenAI-compatible endpoints under Settings → Model Providers.
• Secure key storage: API keys live in the OS keychain, inaccessible to the UI.
• Per-session model choice: pick a frontier model for hard tasks, a local model for execution.
• Data sovereignty: traffic flows through your own cloud account or internal gateway, satisfying enterprise security.
• Requirements: Copilot Business or Enterprise with Copilot CLI enabled by an admin.

Why it matters

BYOK is huge for orgs that want to keep existing billing/data-handling contracts with OpenAI or Anthropic while still using Copilot as the client. It also lets teams mix frontier and local models per task.

How to try it

Download the Copilot desktop app (macOS/Windows/Linux), open Settings → Model Providers and paste your API key. Requires Business/Enterprise plan with admin-enabled Copilot CLI.