diff --git a/src/__tests__/unit/minimax-provider.test.ts b/src/__tests__/unit/minimax-provider.test.ts
new file mode 100644
index 00000000..9cdcbc27
--- /dev/null
+++ b/src/__tests__/unit/minimax-provider.test.ts
@@ -0,0 +1,88 @@
+import { describe, it } from 'node:test';
+import assert from 'node:assert/strict';
+import { generateText } from 'ai';
+import { createOpenAI } from '@ai-sdk/openai';
+import { ClaudeCodeCompatModel } from '../../lib/claude-code-compat';
+
+const MODEL_ID = 'MiniMax-M3';
+const API_KEY = 'test-key-not-real';
+
+function requestUrl(input: RequestInfo | URL): string {
+  return typeof input === 'string' ? input : input instanceof URL ? input.toString() : input.url;
+}
+
+function anthropicResponse(): Response {
+  return new Response(JSON.stringify({
+    id: 'msg_test',
+    type: 'message',
+    role: 'assistant',
+    model: MODEL_ID,
+    content: [{ type: 'text', text: 'ok' }],
+    stop_reason: 'end_turn',
+    usage: { input_tokens: 1, output_tokens: 1 },
+  }), { status: 200, headers: { 'content-type': 'application/json' } });
+}
+
+function openAiResponse(): Response {
+  return new Response(JSON.stringify({
+    id: 'chatcmpl_test',
+    object: 'chat.completion',
+    created: 0,
+    model: MODEL_ID,
+    choices: [{ index: 0, message: { role: 'assistant', content: 'ok' }, finish_reason: 'stop' }],
+    usage: { prompt_tokens: 1, completion_tokens: 1, total_tokens: 2 },
+  }), { status: 200, headers: { 'content-type': 'application/json' } });
+}
+
+describe('MiniMax endpoint request capture', () => {
+  it('routes regional Anthropic bases to /anthropic/v1/messages', async () => {
+    const originalFetch = globalThis.fetch;
+    const urls: string[] = [];
+    globalThis.fetch = (async (input: RequestInfo | URL) => {
+      urls.push(requestUrl(input));
+      return anthropicResponse();
+    }) as typeof fetch;
+
+    try {
+      for (const baseUrl of [
+        'https://api.minimaxi.com/anthropic',
+        'https://api.minimax.io/anthropic',
+      ]) {
+        const model = new ClaudeCodeCompatModel({
+          baseUrl,
+          modelId: MODEL_ID,
+          authToken: API_KEY,
+        });
+        await generateText({ model, prompt: 'ping' });
+      }
+    } finally {
+      globalThis.fetch = originalFetch;
+    }
+
+    assert.deepEqual(urls, [
+      'https://api.minimaxi.com/anthropic/v1/messages',
+      'https://api.minimax.io/anthropic/v1/messages',
+    ]);
+  });
+
+  it('routes regional OpenAI bases to /v1/chat/completions', async () => {
+    const urls: string[] = [];
+    const captureFetch = (async (input: RequestInfo | URL) => {
+      urls.push(requestUrl(input));
+      return openAiResponse();
+    }) as typeof fetch;
+
+    for (const baseURL of [
+      'https://api.minimaxi.com/v1',
+      'https://api.minimax.io/v1',
+    ]) {
+      const openai = createOpenAI({ apiKey: API_KEY, baseURL, fetch: captureFetch });
+      await generateText({ model: openai.chat(MODEL_ID), prompt: 'ping' });
+    }
+
+    assert.deepEqual(urls, [
+      'https://api.minimaxi.com/v1/chat/completions',
+      'https://api.minimax.io/v1/chat/completions',
+    ]);
+  });
+});
diff --git a/src/__tests__/unit/provider-preset.test.ts b/src/__tests__/unit/provider-preset.test.ts
index 10c4135f..de9df190 100644
--- a/src/__tests__/unit/provider-preset.test.ts
+++ b/src/__tests__/unit/provider-preset.test.ts
@@ -73,6 +73,48 @@ describe('Preset Schema Validation', () => {
     assert.equal(p.authStyle, 'auth_token');
   });
 
+  it('MiniMax presets expose M3 and M2.7 capabilities in both regions', () => {
+    const expectedBaseUrls = new Map([
+      ['minimax-cn', 'https://api.minimaxi.com/anthropic'],
+      ['minimax-global', 'https://api.minimax.io/anthropic'],
+    ]);
+
+    for (const [key, baseUrl] of expectedBaseUrls) {
+      const preset = VENDOR_PRESETS.find(v => v.key === key);
+      assert.ok(preset, `${key} preset must exist`);
+      assert.equal(preset.baseUrl, baseUrl);
+      assert.equal(preset.protocol, 'anthropic');
+
+      const m3 = preset.defaultModels.find(model => model.modelId === 'MiniMax-M3');
+      assert.deepEqual(m3, {
+        modelId: 'MiniMax-M3',
+        upstreamModelId: 'MiniMax-M3',
+        displayName: 'MiniMax-M3',
+        capabilities: {
+          contextWindow: 1000000,
+          reasoning: true,
+          toolUse: true,
+          vision: true,
+          supportsAdaptiveThinking: true,
+        },
+      });
+
+      const m27 = preset.defaultModels.find(model => model.upstreamModelId === 'MiniMax-M2.7');
+      assert.deepEqual(m27, {
+        modelId: 'sonnet',
+        upstreamModelId: 'MiniMax-M2.7',
+        displayName: 'MiniMax-M2.7',
+        role: 'default',
+        capabilities: {
+          contextWindow: 204800,
+          reasoning: true,
+          toolUse: true,
+        },
+      });
+      assert.equal(preset.defaultRoleModels?.default, 'MiniMax-M2.7');
+    }
+  });
+
   it('openai-compatible preset exists: openai-compatible protocol, api_key auth, no fixed URL, no fabricated catalog', () => {
     const p = VENDOR_PRESETS.find(v => v.key === 'openai-compatible');
     assert.ok(p, 'generic openai-compatible preset must exist');
diff --git a/src/lib/provider-catalog.ts b/src/lib/provider-catalog.ts
index 2a9e3300..5fd96eb2 100644
--- a/src/lib/provider-catalog.ts
+++ b/src/lib/provider-catalog.ts
@@ -673,7 +673,8 @@ export const VENDOR_PRESETS: VendorPreset[] = [
       CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC: '1',
     },
     defaultModels: [
-      { modelId: 'sonnet', upstreamModelId: 'MiniMax-M2.7', displayName: 'MiniMax-M2.7', role: 'default' },
+      { modelId: 'sonnet', upstreamModelId: 'MiniMax-M2.7', displayName: 'MiniMax-M2.7', role: 'default', capabilities: { contextWindow: 204800, reasoning: true, toolUse: true } },
+      { modelId: 'MiniMax-M3', upstreamModelId: 'MiniMax-M3', displayName: 'MiniMax-M3', capabilities: { contextWindow: 1000000, reasoning: true, toolUse: true, vision: true, supportsAdaptiveThinking: true } },
     ],
     defaultRoleModels: {
       default: 'MiniMax-M2.7',
@@ -706,7 +707,8 @@ export const VENDOR_PRESETS: VendorPreset[] = [
       CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC: '1',
     },
     defaultModels: [
-      { modelId: 'sonnet', upstreamModelId: 'MiniMax-M2.7', displayName: 'MiniMax-M2.7', role: 'default' },
+      { modelId: 'sonnet', upstreamModelId: 'MiniMax-M2.7', displayName: 'MiniMax-M2.7', role: 'default', capabilities: { contextWindow: 204800, reasoning: true, toolUse: true } },
+      { modelId: 'MiniMax-M3', upstreamModelId: 'MiniMax-M3', displayName: 'MiniMax-M3', capabilities: { contextWindow: 1000000, reasoning: true, toolUse: true, vision: true, supportsAdaptiveThinking: true } },
     ],
     defaultRoleModels: {
       default: 'MiniMax-M2.7',