diff --git a/src/core/state.zig b/src/core/state.zig
index e89937cb..40039e3c 100644
--- a/src/core/state.zig
+++ b/src/core/state.zig
@@ -73,6 +73,7 @@ pub const SavedChannelUpdate = struct {
 fn providerLabel(provider: []const u8) []const u8 {
     const map = .{
         .{ "openrouter", "OpenRouter" },
+        .{ "minimax", "MiniMax" },
         .{ "anthropic", "Anthropic" },
         .{ "openai", "OpenAI" },
         .{ "google", "Google" },
@@ -1272,13 +1273,15 @@ test "auto-generated name increments per provider type" {
 
     try s.addSavedProvider(.{ .provider = "openrouter", .api_key = "key1" });
     try s.addSavedProvider(.{ .provider = "openrouter", .api_key = "key2" });
-    try s.addSavedProvider(.{ .provider = "anthropic", .api_key = "key3" });
+    try s.addSavedProvider(.{ .provider = "minimax", .api_key = "key3" });
+    try s.addSavedProvider(.{ .provider = "anthropic", .api_key = "key4" });
 
     const providers = s.savedProviders();
-    try std.testing.expectEqual(@as(usize, 3), providers.len);
+    try std.testing.expectEqual(@as(usize, 4), providers.len);
     try std.testing.expectEqualStrings("OpenRouter", providers[0].name);
     try std.testing.expectEqualStrings("OpenRouter #2", providers[1].name);
-    try std.testing.expectEqualStrings("Anthropic", providers[2].name);
+    try std.testing.expectEqualStrings("MiniMax", providers[2].name);
+    try std.testing.expectEqualStrings("Anthropic", providers[3].name);
 }
 
 test "update saved provider name only" {
diff --git a/ui/src/lib/components/ProviderList.svelte b/ui/src/lib/components/ProviderList.svelte
index a9147db4..9b6d2057 100644
--- a/ui/src/lib/components/ProviderList.svelte
+++ b/ui/src/lib/components/ProviderList.svelte
@@ -1,7 +1,14 @@
 <script lang="ts">
   import { onDestroy, onMount } from "svelte";
   import { api } from "$lib/api/client";
-  import { OPENAI_COMPATIBLE_VALUE, LOCAL_PROVIDERS, mergeWithManifestOptions } from "$lib/providers";
+  import {
+    OPENAI_COMPATIBLE_VALUE,
+    LOCAL_PROVIDERS,
+    PROVIDER_DEFAULT_BASE_URLS,
+    PROVIDER_DEFAULT_MODELS,
+    mergeWithManifestOptions,
+    providerUsesOpenAiCompatibleEndpoint,
+  } from "$lib/providers";
   import type { ProviderOption } from "$lib/providers";
 
   let {
@@ -176,7 +183,13 @@
       if (provider === OPENAI_COMPATIBLE_VALUE) {
         return { ...e, provider, base_url: e.base_url || "", provider_name: e.provider_name || "" };
       }
-      return { ...e, provider, base_url: "", provider_name: "" };
+      return {
+        ...e,
+        provider,
+        base_url: PROVIDER_DEFAULT_BASE_URLS[provider] || "",
+        model: e.model || PROVIDER_DEFAULT_MODELS[provider] || "",
+        provider_name: "",
+      };
     });
     emitChange();
   }
@@ -233,9 +246,9 @@
 
   async function ensureModelOptions(entry: ProviderEntry) {
     if (!entry.provider) return;
-    // openai-compatible requires a base_url to probe; skip until one is entered.
-    if (entry.provider === OPENAI_COMPATIBLE_VALUE && !entry.base_url) return;
-    if (entry.provider !== OPENAI_COMPATIBLE_VALUE && !component) return;
+    // OpenAI-compatible endpoints require a base_url to probe; skip until one is entered.
+    if (providerUsesOpenAiCompatibleEndpoint(entry.provider) && !entry.base_url) return;
+    if (!providerUsesOpenAiCompatibleEndpoint(entry.provider) && !component) return;
 
     const key = modelKey(entry);
     if (modelLoadingByKey[key] || modelLoadedByKey[key]) return;
@@ -245,7 +258,7 @@
 
     try {
       let models: string[];
-      if (entry.provider === OPENAI_COMPATIBLE_VALUE && entry.base_url) {
+      if (providerUsesOpenAiCompatibleEndpoint(entry.provider) && entry.base_url) {
         const data = await api.probeProviderModels(entry.base_url, entry.api_key || "");
         models = data.live_ok && Array.isArray(data.models) ? data.models : [];
       } else {
@@ -338,6 +351,9 @@
     if (entry.provider === OPENAI_COMPATIBLE_VALUE) {
       return "e.g. gpt-4o-mini";
     }
+    if (entry.provider in PROVIDER_DEFAULT_MODELS) {
+      return PROVIDER_DEFAULT_MODELS[entry.provider];
+    }
     if (entry.provider === "codex-cli" || entry.provider === "openai-codex") {
       return "e.g. gpt-5.4";
     }
@@ -351,7 +367,7 @@
     if (entry.provider === "openai-codex") {
       return "Uses ChatGPT/Codex auth from ~/.codex/auth.json. No API key required here.";
     }
-    if (entry.provider === OPENAI_COMPATIBLE_VALUE) {
+    if (providerUsesOpenAiCompatibleEndpoint(entry.provider)) {
       return "Click to load models from the endpoint, then filter as you type.";
     }
     return "Click to load models, then filter as you type.";
@@ -432,6 +448,8 @@
             placeholder="e.g. infini-ai, xiaomi-mimo"
           />
         </div>
+      {/if}
+      {#if providerUsesOpenAiCompatibleEndpoint(entry.provider)}
         <div class="provider-field">
           <label for={`provider-base-url-${i}`}>Base URL</label>
           <input
@@ -439,7 +457,7 @@
             type="text"
             value={entry.base_url}
             oninput={(e) => updateEntry(i, "base_url", e.currentTarget.value)}
-            placeholder="https://api.example.com/v1"
+            placeholder={PROVIDER_DEFAULT_BASE_URLS[entry.provider] || "https://api.example.com/v1"}
           />
         </div>
       {/if}
diff --git a/ui/src/lib/providers.ts b/ui/src/lib/providers.ts
index 01138827..33b9ab9a 100644
--- a/ui/src/lib/providers.ts
+++ b/ui/src/lib/providers.ts
@@ -11,6 +11,7 @@ export type ProviderOption = {
  */
 export const PROVIDER_OPTIONS: ProviderOption[] = [
   { value: "openrouter", label: "OpenRouter (multi-provider, recommended)", recommended: true },
+  { value: "minimax", label: "MiniMax" },
   { value: "anthropic", label: "Anthropic" },
   { value: "openai", label: "OpenAI" },
   { value: "google", label: "Google AI" },
@@ -34,6 +35,18 @@ export const OPENAI_COMPATIBLE_VALUE = "openai-compatible";
 
 export const LOCAL_PROVIDERS = ["ollama", "lm-studio", "claude-cli", "codex-cli", "openai-codex"];
 
+export const PROVIDER_DEFAULT_BASE_URLS: Record<string, string> = {
+  minimax: "https://api.minimax.io/v1",
+};
+
+export const PROVIDER_DEFAULT_MODELS: Record<string, string> = {
+  minimax: "MiniMax-M3",
+};
+
+export function providerUsesOpenAiCompatibleEndpoint(provider: string) {
+  return provider === OPENAI_COMPATIBLE_VALUE || provider in PROVIDER_DEFAULT_BASE_URLS;
+}
+
 /**
  * Set of all provider values that are NOT the openai-compatible catch-all.
  * Used to determine whether a saved provider entry is a named standard provider
diff --git a/ui/src/routes/providers/+page.svelte b/ui/src/routes/providers/+page.svelte
index 019b952f..9729703f 100644
--- a/ui/src/routes/providers/+page.svelte
+++ b/ui/src/routes/providers/+page.svelte
@@ -1,7 +1,15 @@
 <script lang="ts">
   import { onDestroy, onMount } from "svelte";
   import { api } from "$lib/api/client";
-  import { PROVIDER_OPTIONS, OPENAI_COMPATIBLE_VALUE, LOCAL_PROVIDERS, KNOWN_PROVIDER_VALUES } from "$lib/providers";
+  import {
+    PROVIDER_OPTIONS,
+    OPENAI_COMPATIBLE_VALUE,
+    LOCAL_PROVIDERS,
+    KNOWN_PROVIDER_VALUES,
+    PROVIDER_DEFAULT_BASE_URLS,
+    PROVIDER_DEFAULT_MODELS,
+    providerUsesOpenAiCompatibleEndpoint,
+  } from "$lib/providers";
 
 
   let providers = $state<any[]>([]);
@@ -107,26 +115,28 @@
     addValidating = true;
     addError = "";
     try {
+      const usesCompatibleEndpoint = providerUsesOpenAiCompatibleEndpoint(addForm.provider);
       const isCustom = addForm.provider === OPENAI_COMPATIBLE_VALUE;
       const providerValue = addForm.provider === OPENAI_COMPATIBLE_VALUE
         ? addForm.provider_name.trim()
         : addForm.provider;
-      const baseUrl = addForm.base_url.trim();
+      const baseUrl = addForm.base_url.trim() || PROVIDER_DEFAULT_BASE_URLS[addForm.provider] || "";
+      const model = addForm.model || PROVIDER_DEFAULT_MODELS[addForm.provider] || undefined;
       if (isCustom && !providerValue) {
         addError = "Provider name is required for OpenAI Compatible providers.";
         addValidating = false;
         return;
       }
-      if (isCustom && !baseUrl) {
-        addError = "Base URL is required for OpenAI Compatible providers.";
+      if (usesCompatibleEndpoint && !baseUrl) {
+        addError = "Base URL is required for this provider.";
         addValidating = false;
         return;
       }
       await api.createSavedProvider({
         provider: providerValue,
         api_key: addForm.api_key,
-        model: addForm.model || undefined,
-        base_url: isCustom ? baseUrl : undefined,
+        model,
+        base_url: usesCompatibleEndpoint ? baseUrl : undefined,
       });
       showAddForm = false;
       addForm = { provider: "openrouter", provider_name: "", api_key: "", model: "", base_url: "" };
@@ -209,7 +219,7 @@
   // A provider is "custom" if its type is not one of the built-in nullclaw-known providers.
   // This determines whether the base_url / Fetch Models fields appear in edit form.
   function isCustomProvider(p: any) {
-    return !KNOWN_PROVIDER_VALUES.has(p.provider);
+    return !KNOWN_PROVIDER_VALUES.has(p.provider) || p.provider in PROVIDER_DEFAULT_BASE_URLS;
   }
 
   function getProviderLabel(value: string) {
@@ -237,7 +247,17 @@
   }
 
   $effect(() => {
-    // Clear probed models when the add form's base_url or api_key changes
+    if (addForm.provider in PROVIDER_DEFAULT_BASE_URLS && !addForm.base_url) {
+      addForm.base_url = PROVIDER_DEFAULT_BASE_URLS[addForm.provider];
+    }
+    if (addForm.provider in PROVIDER_DEFAULT_MODELS && !addForm.model) {
+      addForm.model = PROVIDER_DEFAULT_MODELS[addForm.provider];
+    }
+  });
+
+  $effect(() => {
+    // Clear probed models when the add form's endpoint, key, or provider changes
+    addForm.provider;
     addForm.base_url;
     addForm.api_key;
     addProbedModels = [];
@@ -277,9 +297,16 @@
           <label for="add-provider-name">Provider Name</label>
           <input id="add-provider-name" type="text" bind:value={addForm.provider_name} placeholder="e.g. infini-ai, xiaomi-mimo" />
         </div>
+      {/if}
+      {#if providerUsesOpenAiCompatibleEndpoint(addForm.provider)}
         <div class="field">
           <label for="add-base-url">Base URL</label>
-          <input id="add-base-url" type="text" bind:value={addForm.base_url} placeholder="https://api.example.com/v1" />
+          <input
+            id="add-base-url"
+            type="text"
+            bind:value={addForm.base_url}
+            placeholder={PROVIDER_DEFAULT_BASE_URLS[addForm.provider] || "https://api.example.com/v1"}
+          />
         </div>
       {/if}
       {#if !isLocal(addForm.provider)}
@@ -288,11 +315,16 @@
           <input id="add-api-key" type="password" bind:value={addForm.api_key} placeholder="Enter API key..." />
         </div>
       {/if}
-      {#if addForm.provider === OPENAI_COMPATIBLE_VALUE}
+      {#if providerUsesOpenAiCompatibleEndpoint(addForm.provider)}
         <div class="field">
           <label for="add-model">Model</label>
           <div class="model-input-row">
-            <input id="add-model" type="text" bind:value={addForm.model} placeholder="e.g. gpt-4" />
+            <input
+              id="add-model"
+              type="text"
+              bind:value={addForm.model}
+              placeholder={PROVIDER_DEFAULT_MODELS[addForm.provider] || "e.g. gpt-4"}
+            />
             <button
               class="btn fetch-models-btn"
               onclick={fetchAddModels}