diff --git a/pkg/builder3/openapi.go b/pkg/builder3/openapi.go
index 8871c37ce..abe5a331e 100644
--- a/pkg/builder3/openapi.go
+++ b/pkg/builder3/openapi.go
@@ -24,10 +24,10 @@ import (
 
 	restful "github.com/emicklei/go-restful"
 
+	builderutil "k8s.io/kube-openapi/pkg/builder3/util"
 	"k8s.io/kube-openapi/pkg/common"
 	"k8s.io/kube-openapi/pkg/common/restfuladapter"
 	"k8s.io/kube-openapi/pkg/spec3"
-	builderutil "k8s.io/kube-openapi/pkg/builder3/util"
 	"k8s.io/kube-openapi/pkg/util"
 	"k8s.io/kube-openapi/pkg/validation/spec"
 )
@@ -226,10 +226,14 @@ func newOpenAPI(config *common.Config) openAPI {
 		}
 	}
 
-	o.definitions = o.config.GetDefinitions(func(name string) spec.Ref {
-		defName, _ := o.config.GetDefinitionName(name)
-		return spec.MustCreateRef("#/components/schemas/" + common.EscapeJsonPointer(defName))
-	})
+	if o.config.Definitions != nil {
+		o.definitions = o.config.Definitions
+	} else {
+		o.definitions = o.config.GetDefinitions(func(name string) spec.Ref {
+			defName, _ := o.config.GetDefinitionName(name)
+			return spec.MustCreateRef("#/components/schemas/" + common.EscapeJsonPointer(defName))
+		})
+	}
 
 	return o
 }
diff --git a/pkg/common/common.go b/pkg/common/common.go
index d7aae2927..c84ca7031 100644
--- a/pkg/common/common.go
+++ b/pkg/common/common.go
@@ -94,6 +94,10 @@ type Config struct {
 	// or any of the models will result in spec generation failure.
 	GetDefinitions GetOpenAPIDefinitions
 
+	// Provides the definition for all models used by routes. One of GetDefinitions or Definitions must be defined to generate a spec.
+	// This takes precedent over the GetDefinitions function
+	Definitions map[string]OpenAPIDefinition
+
 	// GetOperationIDAndTags returns operation id and tags for a restful route. It is an optional function to customize operation IDs.
 	//
 	// Deprecated: GetOperationIDAndTagsFromRoute should be used instead. This cannot be specified if using the new Route
@@ -141,8 +145,13 @@ type OpenAPIV3Config struct {
 
 	// OpenAPIDefinitions should provide definition for all models used by routes. Failure to provide this map
 	// or any of the models will result in spec generation failure.
+	// One of GetDefinitions or Definitions must be defined to generate a spec.
 	GetDefinitions GetOpenAPIDefinitions
 
+	// Provides the definition for all models used by routes. One of GetDefinitions or Definitions must be defined to generate a spec.
+	// This takes precedent over the GetDefinitions function
+	Definitions map[string]OpenAPIDefinition
+
 	// GetOperationIDAndTags returns operation id and tags for a restful route. It is an optional function to customize operation IDs.
 	//
 	// Deprecated: GetOperationIDAndTagsFromRoute should be used instead. This cannot be specified if using the new Route
@@ -176,12 +185,13 @@ func ConvertConfigToV3(config *Config) *OpenAPIV3Config {
 		GetOperationIDAndTags:          config.GetOperationIDAndTags,
 		GetOperationIDAndTagsFromRoute: config.GetOperationIDAndTagsFromRoute,
 		GetDefinitionName:              config.GetDefinitionName,
+		Definitions:                    config.Definitions,
 		SecuritySchemes:                make(spec3.SecuritySchemes),
 		DefaultSecurity:                config.DefaultSecurity,
 		DefaultResponse:                openapiconv.ConvertResponse(config.DefaultResponse, []string{"application/json"}),
 
-		CommonResponses:                make(map[int]*spec3.Response),
-		ResponseDefinitions:            make(map[string]*spec3.Response),
+		CommonResponses:     make(map[int]*spec3.Response),
+		ResponseDefinitions: make(map[string]*spec3.Response),
 	}
 
 	if config.SecurityDefinitions != nil {