diff --git a/internal/api/handlers/management/config_lists.go b/internal/api/handlers/management/config_lists.go
index fb0a7655..edb7a677 100644
--- a/internal/api/handlers/management/config_lists.go
+++ b/internal/api/handlers/management/config_lists.go
@@ -705,7 +705,7 @@ func (h *Handler) DeleteOAuthExcludedModels(c *gin.Context) {
 
 // oauth-model-mappings: map[string][]ModelNameMapping
 func (h *Handler) GetOAuthModelMappings(c *gin.Context) {
-	c.JSON(200, gin.H{"oauth-model-mappings": normalizeOAuthModelMappings(h.cfg.OAuthModelMappings)})
+	c.JSON(200, gin.H{"oauth-model-mappings": sanitizedOAuthModelMappings(h.cfg.OAuthModelMappings)})
 }
 
 func (h *Handler) PutOAuthModelMappings(c *gin.Context) {
@@ -725,7 +725,7 @@ func (h *Handler) PutOAuthModelMappings(c *gin.Context) {
 		}
 		entries = wrapper.Items
 	}
-	h.cfg.OAuthModelMappings = normalizeOAuthModelMappings(entries)
+	h.cfg.OAuthModelMappings = sanitizedOAuthModelMappings(entries)
 	h.persist(c)
 }
 
@@ -751,7 +751,8 @@ func (h *Handler) PatchOAuthModelMappings(c *gin.Context) {
 		return
 	}
 
-	normalized := normalizeOAuthModelMappingsList(body.Mappings)
+	normalizedMap := sanitizedOAuthModelMappings(map[string][]config.ModelNameMapping{channel: body.Mappings})
+	normalized := normalizedMap[channel]
 	if len(normalized) == 0 {
 		if h.cfg.OAuthModelMappings == nil {
 			c.JSON(404, gin.H{"error": "channel not found"})
@@ -1041,60 +1042,26 @@ func normalizeVertexCompatKey(entry *config.VertexCompatKey) {
 	entry.Models = normalized
 }
 
-func normalizeOAuthModelMappingsList(entries []config.ModelNameMapping) []config.ModelNameMapping {
+func sanitizedOAuthModelMappings(entries map[string][]config.ModelNameMapping) map[string][]config.ModelNameMapping {
 	if len(entries) == 0 {
 		return nil
 	}
-	seenName := make(map[string]struct{}, len(entries))
-	seenAlias := make(map[string]struct{}, len(entries))
-	clean := make([]config.ModelNameMapping, 0, len(entries))
-	for _, mapping := range entries {
-		name := strings.TrimSpace(mapping.Name)
-		alias := strings.TrimSpace(mapping.Alias)
-		if name == "" || alias == "" {
+	copied := make(map[string][]config.ModelNameMapping, len(entries))
+	for channel, mappings := range entries {
+		if len(mappings) == 0 {
 			continue
 		}
-		if strings.EqualFold(name, alias) {
-			continue
-		}
-		nameKey := strings.ToLower(name)
-		aliasKey := strings.ToLower(alias)
-		if _, ok := seenName[nameKey]; ok {
-			continue
-		}
-		if _, ok := seenAlias[aliasKey]; ok {
-			continue
-		}
-		seenName[nameKey] = struct{}{}
-		seenAlias[aliasKey] = struct{}{}
-		clean = append(clean, config.ModelNameMapping{Name: name, Alias: alias, Fork: mapping.Fork})
+		copied[channel] = append([]config.ModelNameMapping(nil), mappings...)
 	}
-	if len(clean) == 0 {
+	if len(copied) == 0 {
 		return nil
 	}
-	return clean
-}
-
-func normalizeOAuthModelMappings(entries map[string][]config.ModelNameMapping) map[string][]config.ModelNameMapping {
-	if len(entries) == 0 {
+	cfg := config.Config{OAuthModelMappings: copied}
+	cfg.SanitizeOAuthModelMappings()
+	if len(cfg.OAuthModelMappings) == 0 {
 		return nil
 	}
-	out := make(map[string][]config.ModelNameMapping, len(entries))
-	for rawChannel, mappings := range entries {
-		channel := strings.ToLower(strings.TrimSpace(rawChannel))
-		if channel == "" {
-			continue
-		}
-		normalized := normalizeOAuthModelMappingsList(mappings)
-		if len(normalized) == 0 {
-			continue
-		}
-		out[channel] = normalized
-	}
-	if len(out) == 0 {
-		return nil
-	}
-	return out
+	return cfg.OAuthModelMappings
 }
 
 // GetAmpCode returns the complete ampcode configuration.