diff --git a/internal/agent/coordinator.go b/internal/agent/coordinator.go
index a12763d0dca9354ec24d1468502eea46a62b7ac2..14f67f724a8410b043164928d2d5fbe253108300 100644
--- a/internal/agent/coordinator.go
+++ b/internal/agent/coordinator.go
@@ -66,7 +66,9 @@ var copilotResponsesModels = map[string]bool{
 	"gpt-5.2":       true,
 	"gpt-5.2-codex": true,
 	"gpt-5.3-codex": true,
+	"gpt-5.4":       true,
 	"gpt-5.4-mini":  true,
+	"gpt-5.5":       true,
 	"gpt-5-mini":    true,
 }