diff --git a/cmd/gateway_providers.go b/cmd/gateway_providers.go
index 6af61593..3bd1469a 100644
--- a/cmd/gateway_providers.go
+++ b/cmd/gateway_providers.go
@@ -3,7 +3,6 @@ package cmd
 import (
 	"context"
 	"log/slog"
-	"strings"
 
 	"github.com/nextlevelbuilder/goclaw/internal/config"
 	"github.com/nextlevelbuilder/goclaw/internal/providers"
@@ -81,12 +80,11 @@ func registerProvidersFromDB(registry *providers.Registry, provStore store.Provi
 		if !p.Enabled || p.APIKey == "" {
 			continue
 		}
-		if p.ProviderType == "anthropic_native" {
+		if p.ProviderType == store.ProviderAnthropicNative {
 			registry.Register(providers.NewAnthropicProvider(p.APIKey))
 		} else {
 			prov := providers.NewOpenAIProvider(p.Name, p.APIKey, p.APIBase, "")
-			// MiniMax native API uses a different chat path for vision support.
-			if p.Name == "minimax" && strings.Contains(p.APIBase, "minimax.io") {
+			if p.ProviderType == store.ProviderMiniMax {
 				prov.WithChatPath("/text/chatcompletion_v2")
 			}
 			registry.Register(prov)
diff --git a/internal/http/provider_models.go b/internal/http/provider_models.go
index ec06bc2e..2fc0a1d7 100644
--- a/internal/http/provider_models.go
+++ b/internal/http/provider_models.go
@@ -49,15 +49,15 @@ func (h *ProvidersHandler) handleListProviderModels(w http.ResponseWriter, r *ht
 	switch p.ProviderType {
 	case "anthropic_native":
 		models, err = fetchAnthropicModels(ctx, p.APIKey)
-	case "openai_compat":
+	case "gemini_native":
+		models, err = fetchGeminiModels(ctx, p.APIKey)
+	default:
+		// All other types use OpenAI-compatible /models endpoint
 		apiBase := strings.TrimRight(p.APIBase, "/")
 		if apiBase == "" {
 			apiBase = "https://api.openai.com/v1"
 		}
 		models, err = fetchOpenAIModels(ctx, apiBase, p.APIKey)
-	default:
-		writeJSON(w, http.StatusBadRequest, map[string]string{"error": fmt.Sprintf("unsupported provider type: %s", p.ProviderType)})
-		return
 	}
 
 	if err != nil {
@@ -107,6 +107,44 @@ func fetchAnthropicModels(ctx context.Context, apiKey string) ([]ModelInfo, erro
 	return models, nil
 }
 
+// fetchGeminiModels calls the Google Gemini models API.
+// Gemini uses a different format: GET /v1beta/models?key=API_KEY
+func fetchGeminiModels(ctx context.Context, apiKey string) ([]ModelInfo, error) {
+	req, err := http.NewRequestWithContext(ctx, "GET", "https://generativelanguage.googleapis.com/v1beta/models?key="+apiKey, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(io.LimitReader(resp.Body, 1024))
+		return nil, fmt.Errorf("gemini API returned %d: %s", resp.StatusCode, string(body))
+	}
+
+	var result struct {
+		Models []struct {
+			Name        string `json:"name"`        // e.g. "models/gemini-2.0-flash"
+			DisplayName string `json:"displayName"` // e.g. "Gemini 2.0 Flash"
+		} `json:"models"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+		return nil, fmt.Errorf("failed to decode gemini response: %w", err)
+	}
+
+	models := make([]ModelInfo, 0, len(result.Models))
+	for _, m := range result.Models {
+		// Strip "models/" prefix to get the usable model ID
+		id := strings.TrimPrefix(m.Name, "models/")
+		models = append(models, ModelInfo{ID: id, Name: m.DisplayName})
+	}
+	return models, nil
+}
+
 // fetchOpenAIModels calls an OpenAI-compatible /models endpoint.
 func fetchOpenAIModels(ctx context.Context, apiBase, apiKey string) ([]ModelInfo, error) {
 	req, err := http.NewRequestWithContext(ctx, "GET", apiBase+"/models", nil)
diff --git a/internal/http/providers.go b/internal/http/providers.go
index 2dac589c..378d5b17 100644
--- a/internal/http/providers.go
+++ b/internal/http/providers.go
@@ -64,10 +64,14 @@ func (h *ProvidersHandler) registerInMemory(p *store.LLMProviderData) {
 	if h.providerReg == nil || !p.Enabled || p.APIKey == "" {
 		return
 	}
-	if p.ProviderType == "anthropic_native" {
+	if p.ProviderType == store.ProviderAnthropicNative {
 		h.providerReg.Register(providers.NewAnthropicProvider(p.APIKey))
 	} else {
-		h.providerReg.Register(providers.NewOpenAIProvider(p.Name, p.APIKey, p.APIBase, ""))
+		prov := providers.NewOpenAIProvider(p.Name, p.APIKey, p.APIBase, "")
+		if p.ProviderType == store.ProviderMiniMax {
+			prov.WithChatPath("/text/chatcompletion_v2")
+		}
+		h.providerReg.Register(prov)
 	}
 }
 
@@ -103,8 +107,8 @@ func (h *ProvidersHandler) handleCreateProvider(w http.ResponseWriter, r *http.R
 		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "name must be a valid slug (lowercase letters, numbers, hyphens only)"})
 		return
 	}
-	if p.ProviderType != "anthropic_native" && p.ProviderType != "openai_compat" {
-		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "provider_type must be 'anthropic_native' or 'openai_compat'"})
+	if !store.ValidProviderTypes[p.ProviderType] {
+		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "unsupported provider_type"})
 		return
 	}
 
@@ -161,8 +165,8 @@ func (h *ProvidersHandler) handleUpdateProvider(w http.ResponseWriter, r *http.R
 
 	// Validate provider_type if being updated
 	if pt, ok := updates["provider_type"]; ok {
-		if s, _ := pt.(string); s != "anthropic_native" && s != "openai_compat" {
-			writeJSON(w, http.StatusBadRequest, map[string]string{"error": "provider_type must be 'anthropic_native' or 'openai_compat'"})
+		if s, _ := pt.(string); !store.ValidProviderTypes[s] {
+			writeJSON(w, http.StatusBadRequest, map[string]string{"error": "unsupported provider_type"})
 			return
 		}
 	}
diff --git a/internal/store/pg/providers.go b/internal/store/pg/providers.go
index 7133ad74..b99d3747 100644
--- a/internal/store/pg/providers.go
+++ b/internal/store/pg/providers.go
@@ -118,4 +118,3 @@ func (s *PGProviderStore) decryptKey(apiKey, providerName string) string {
 	}
 	return apiKey
 }
-
diff --git a/internal/store/provider_store.go b/internal/store/provider_store.go
index cd32c23e..d2e44658 100644
--- a/internal/store/provider_store.go
+++ b/internal/store/provider_store.go
@@ -6,12 +6,42 @@ import (
 	"github.com/google/uuid"
 )
 
+// Provider type constants.
+const (
+	ProviderAnthropicNative = "anthropic_native"
+	ProviderOpenAICompat    = "openai_compat"
+	ProviderGeminiNative    = "gemini_native"
+	ProviderOpenRouter      = "openrouter"
+	ProviderGroq            = "groq"
+	ProviderDeepSeek        = "deepseek"
+	ProviderMistral         = "mistral"
+	ProviderXAI             = "xai"
+	ProviderMiniMax         = "minimax_native"
+	ProviderCohere          = "cohere"
+	ProviderPerplexity      = "perplexity"
+)
+
+// ValidProviderTypes lists all accepted provider_type values.
+var ValidProviderTypes = map[string]bool{
+	ProviderAnthropicNative: true,
+	ProviderOpenAICompat:    true,
+	ProviderGeminiNative:    true,
+	ProviderOpenRouter:      true,
+	ProviderGroq:            true,
+	ProviderDeepSeek:        true,
+	ProviderMistral:         true,
+	ProviderXAI:             true,
+	ProviderMiniMax:         true,
+	ProviderCohere:          true,
+	ProviderPerplexity:      true,
+}
+
 // LLMProviderData represents an LLM provider configuration.
 type LLMProviderData struct {
 	BaseModel
 	Name         string `json:"name"`
 	DisplayName  string `json:"display_name,omitempty"`
-	ProviderType string `json:"provider_type"` // "anthropic_native", "openai_compat"
+	ProviderType string `json:"provider_type"`
 	APIBase      string `json:"api_base,omitempty"`
 	APIKey       string `json:"api_key,omitempty"`
 	Enabled      bool   `json:"enabled"`
diff --git a/ui/web/src/index.css b/ui/web/src/index.css
index ab43c1c4..bb7d5a49 100644
--- a/ui/web/src/index.css
+++ b/ui/web/src/index.css
@@ -58,8 +58,8 @@
   --muted-foreground: oklch(0.650 0.030 256);
   --accent: oklch(0.300 0.055 270);
   --accent-foreground: oklch(0.984 0.003 247.858);
-  --destructive: oklch(0.396 0.141 25.723);
-  --destructive-foreground: oklch(0.637 0.237 25.331);
+  --destructive: oklch(0.65 0.23 25);
+  --destructive-foreground: oklch(0.98 0.02 25);
   --border: oklch(0.320 0.025 260);
   --input: oklch(0.250 0.035 260);
   --ring: oklch(0.585 0.233 277.117);
diff --git a/ui/web/src/pages/providers/hooks/use-providers.ts b/ui/web/src/pages/providers/hooks/use-providers.ts
index cbbf7ffa..aae1f94e 100644
--- a/ui/web/src/pages/providers/hooks/use-providers.ts
+++ b/ui/web/src/pages/providers/hooks/use-providers.ts
@@ -5,7 +5,7 @@ export interface ProviderData {
   id: string;
   name: string;
   display_name: string;
-  provider_type: "anthropic_native" | "openai_compat";
+  provider_type: string;
   api_base: string;
   api_key: string; // masked "***" from server
   enabled: boolean;
diff --git a/ui/web/src/pages/providers/provider-form-dialog.tsx b/ui/web/src/pages/providers/provider-form-dialog.tsx
index e3ece71b..20e139ed 100644
--- a/ui/web/src/pages/providers/provider-form-dialog.tsx
+++ b/ui/web/src/pages/providers/provider-form-dialog.tsx
@@ -5,6 +5,7 @@ import {
   DialogHeader,
   DialogTitle,
   DialogFooter,
+  DialogDescription,
 } from "@/components/ui/dialog";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
@@ -28,8 +29,17 @@ interface ProviderFormDialogProps {
 }
 
 const PROVIDER_TYPES = [
-  { value: "anthropic_native", label: "Anthropic Native" },
-  { value: "openai_compat", label: "OpenAI Compatible" },
+  { value: "anthropic_native", label: "Anthropic (Native)", apiBase: "", placeholder: "https://api.anthropic.com" },
+  { value: "openai_compat", label: "OpenAI Compatible", apiBase: "", placeholder: "https://api.openai.com/v1" },
+  { value: "gemini_native", label: "Google Gemini", apiBase: "https://generativelanguage.googleapis.com/v1beta/openai", placeholder: "" },
+  { value: "openrouter", label: "OpenRouter", apiBase: "https://openrouter.ai/api/v1", placeholder: "" },
+  { value: "groq", label: "Groq", apiBase: "https://api.groq.com/openai/v1", placeholder: "" },
+  { value: "deepseek", label: "DeepSeek", apiBase: "https://api.deepseek.com/v1", placeholder: "" },
+  { value: "mistral", label: "Mistral AI", apiBase: "https://api.mistral.ai/v1", placeholder: "" },
+  { value: "xai", label: "xAI (Grok)", apiBase: "https://api.x.ai/v1", placeholder: "" },
+  { value: "minimax_native", label: "MiniMax (Native)", apiBase: "https://api.minimax.io/v1", placeholder: "" },
+  { value: "cohere", label: "Cohere", apiBase: "https://api.cohere.ai/compatibility/v1", placeholder: "" },
+  { value: "perplexity", label: "Perplexity", apiBase: "https://api.perplexity.ai", placeholder: "" },
 ];
 
 export function ProviderFormDialog({ open, onOpenChange, provider, onSubmit }: ProviderFormDialogProps) {
@@ -41,9 +51,11 @@ export function ProviderFormDialog({ open, onOpenChange, provider, onSubmit }: P
   const [apiKey, setApiKey] = useState("");
   const [enabled, setEnabled] = useState(true);
   const [loading, setLoading] = useState(false);
+  const [error, setError] = useState("");
 
   useEffect(() => {
     if (open) {
+      setError("");
       if (provider) {
         setName(provider.name);
         setDisplayName(provider.display_name || "");
@@ -81,8 +93,8 @@ export function ProviderFormDialog({ open, onOpenChange, provider, onSubmit }: P
 
       await onSubmit(data);
       onOpenChange(false);
-    } catch {
-      // error handled upstream
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "Failed to save provider");
     } finally {
       setLoading(false);
     }
@@ -93,6 +105,7 @@ export function ProviderFormDialog({ open, onOpenChange, provider, onSubmit }: P
       <DialogContent className="max-h-[85vh] flex flex-col">
         <DialogHeader>
           <DialogTitle>{isEdit ? "Edit Provider" : "Add Provider"}</DialogTitle>
+          <DialogDescription>Configure an LLM provider connection.</DialogDescription>
         </DialogHeader>
         <div className="space-y-4 py-4 overflow-y-auto min-h-0">
           <div className="grid grid-cols-2 gap-4">
@@ -120,7 +133,16 @@ export function ProviderFormDialog({ open, onOpenChange, provider, onSubmit }: P
 
           <div className="space-y-2">
             <Label>Provider Type *</Label>
-            <Select value={providerType} onValueChange={setProviderType}>
+            <Select
+              value={providerType}
+              onValueChange={(v) => {
+                setProviderType(v);
+                if (!isEdit) {
+                  const preset = PROVIDER_TYPES.find((t) => t.value === v);
+                  if (preset?.apiBase) setApiBase(preset.apiBase);
+                }
+              }}
+            >
               <SelectTrigger>
                 <SelectValue />
               </SelectTrigger>
@@ -140,7 +162,7 @@ export function ProviderFormDialog({ open, onOpenChange, provider, onSubmit }: P
               id="apiBase"
               value={apiBase}
               onChange={(e) => setApiBase(e.target.value)}
-              placeholder={providerType === "anthropic_native" ? "https://api.anthropic.com" : "https://openrouter.ai/api"}
+              placeholder={PROVIDER_TYPES.find((t) => t.value === providerType)?.placeholder || PROVIDER_TYPES.find((t) => t.value === providerType)?.apiBase || "https://api.example.com/v1"}
             />
           </div>
 
@@ -164,6 +186,9 @@ export function ProviderFormDialog({ open, onOpenChange, provider, onSubmit }: P
             <Label htmlFor="enabled">Enabled</Label>
             <Switch id="enabled" checked={enabled} onCheckedChange={setEnabled} />
           </div>
+          {error && (
+            <p className="text-sm text-destructive">{error}</p>
+          )}
         </div>
         <DialogFooter>
           <Button variant="outline" onClick={() => onOpenChange(false)} disabled={loading}>
diff --git a/ui/web/src/pages/providers/providers-page.tsx b/ui/web/src/pages/providers/providers-page.tsx
index 623321c2..fab88ef6 100644
--- a/ui/web/src/pages/providers/providers-page.tsx
+++ b/ui/web/src/pages/providers/providers-page.tsx
@@ -17,6 +17,15 @@ import { usePagination } from "@/hooks/use-pagination";
 const typeBadge: Record<string, { label: string; variant: "default" | "secondary" | "outline" }> = {
   anthropic_native: { label: "Anthropic", variant: "default" },
   openai_compat: { label: "OpenAI Compat", variant: "secondary" },
+  gemini_native: { label: "Gemini", variant: "secondary" },
+  openrouter: { label: "OpenRouter", variant: "secondary" },
+  groq: { label: "Groq", variant: "secondary" },
+  deepseek: { label: "DeepSeek", variant: "secondary" },
+  mistral: { label: "Mistral", variant: "secondary" },
+  xai: { label: "xAI", variant: "secondary" },
+  minimax_native: { label: "MiniMax", variant: "secondary" },
+  cohere: { label: "Cohere", variant: "secondary" },
+  perplexity: { label: "Perplexity", variant: "secondary" },
 };
 
 export function ProvidersPage() {