diff --git a/config.example.yaml b/config.example.yaml
index 19e8e129..8eca6511 100644
--- a/config.example.yaml
+++ b/config.example.yaml
@@ -215,7 +215,7 @@ ws-auth: false
 
 # Global OAuth model name mappings (per channel)
 # These mappings rename model IDs for both model listing and request routing.
-# Supported channels: gemini-cli, vertex, aistudio, antigravity, claude, codex, qwen, iflow, kiro.
+# Supported channels: gemini-cli, vertex, aistudio, antigravity, claude, codex, qwen, iflow, kiro, github-copilot.
 # NOTE: Mappings do not apply to gemini-api-key, codex-api-key, claude-api-key, openai-compatibility, vertex-api-key, or ampcode.
 # oauth-model-mappings:
 #   gemini-cli:
@@ -246,6 +246,9 @@ ws-auth: false
 #   kiro:
 #     - name: "kiro-claude-opus-4-5"
 #       alias: "op45"
+#   github-copilot:
+#     - name: "gpt-5"
+#       alias: "copilot-gpt5"
 
 # OAuth provider excluded models
 # oauth-excluded-models:
diff --git a/internal/config/config.go b/internal/config/config.go
index 0cd89dc4..27a47266 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -100,7 +100,7 @@ type Config struct {
 
 	// OAuthModelMappings defines global model name mappings for OAuth/file-backed auth channels.
 	// These mappings affect both model listing and model routing for supported channels:
-	// gemini-cli, vertex, aistudio, antigravity, claude, codex, qwen, iflow.
+	// gemini-cli, vertex, aistudio, antigravity, claude, codex, qwen, iflow, kiro, github-copilot.
 	//
 	// NOTE: This does not apply to existing per-credential model alias features under:
 	// gemini-api-key, codex-api-key, claude-api-key, openai-compatibility, vertex-api-key, and ampcode.
diff --git a/sdk/cliproxy/auth/model_name_mappings.go b/sdk/cliproxy/auth/model_name_mappings.go
index d4200671..5bbab098 100644
--- a/sdk/cliproxy/auth/model_name_mappings.go
+++ b/sdk/cliproxy/auth/model_name_mappings.go
@@ -139,7 +139,7 @@ func modelMappingChannel(auth *Auth) string {
 // and auth kind. Returns empty string if the provider/authKind combination doesn't support
 // OAuth model mappings (e.g., API key authentication).
 //
-// Supported channels: gemini-cli, vertex, aistudio, antigravity, claude, codex, qwen, iflow.
+// Supported channels: gemini-cli, vertex, aistudio, antigravity, claude, codex, qwen, iflow, kiro, github-copilot.
 func OAuthModelMappingChannel(provider, authKind string) string {
 	provider = strings.ToLower(strings.TrimSpace(provider))
 	authKind = strings.ToLower(strings.TrimSpace(authKind))
@@ -165,7 +165,7 @@ func OAuthModelMappingChannel(provider, authKind string) string {
 		return "codex"
 	case "gemini-cli", "aistudio", "antigravity", "qwen", "iflow":
 		return provider
-	case "kiro":
+	case "kiro", "github-copilot":
 		return provider
 	default:
 		return ""