chore: ai, public course and other ui improvements

packages/utils/src/agent-models/index.ts

@@ -7,36 +7,59 @@
  *   even though it isn't currently exposed to users.
  */
 
-export const AGENT_MODEL_IDS = ['gemini-2.5-flash', 'gpt-4o', 'claude-sonnet-4-5'] as const;
+export const AGENT_MODEL_IDS = ['gemini-2.5-flash', 'gpt-5.4-mini', 'claude-sonnet-3-5', 'kimi-k2.6'] as const;
 
 export type AgentModelId = (typeof AGENT_MODEL_IDS)[number];
-export type AgentModelProvider = 'google' | 'openai' | 'anthropic';
+export type AgentModelProvider = 'google' | 'openai' | 'anthropic' | 'moonshot';
+export type AgentModelCostTier = 'low' | 'high';
 
 export interface AgentModelDescriptor {
   provider: AgentModelProvider;
   label: string;
   /** The exact model id passed to the provider SDK. */
   backendModelId: string;
+  /** Whether this model is available on the free plan. */
+  isFree: boolean;
+  /** Cost tier shown in the model picker — 'low' ($) or 'high' ($$$). */
+  costTier: AgentModelCostTier;
 }
 
 export const AGENT_MODELS: Record<AgentModelId, AgentModelDescriptor> = {
   'gemini-2.5-flash': {
     provider: 'google',
     label: 'Gemini 2.5 Flash',
-    backendModelId: 'gemini-2.5-flash'
+    backendModelId: 'gemini-2.5-flash',
+    isFree: true,
+    costTier: 'low'
   },
-  'gpt-4o': {
+  'gpt-5.4-mini': {
     provider: 'openai',
-    label: 'GPT-4o',
-    backendModelId: 'gpt-4o'
+    label: 'GPT-5.4 Mini',
+    backendModelId: 'gpt-5.4-mini',
+    isFree: false,
+    costTier: 'low'
   },
-  'claude-sonnet-4-5': {
+  'claude-sonnet-3-5': {
     provider: 'anthropic',
-    label: 'Claude Sonnet 4.5',
-    backendModelId: 'claude-sonnet-4-5-20250929'
+    label: 'Claude Sonnet 4.6',
+    backendModelId: 'claude-sonnet-4-6',
+    isFree: false,
+    costTier: 'high'
+  },
+  'kimi-k2.6': {
+    provider: 'moonshot',
+    label: 'Kimi K2.6',
+    backendModelId: 'kimi-k2.6',
+    isFree: true,
+    costTier: 'low'
   }
 };
 
-export const UI_PICKER_MODEL_IDS = ['gemini-2.5-flash', 'gpt-4o'] as const satisfies readonly AgentModelId[];
+export const UI_PICKER_MODEL_IDS = [
+  'gemini-2.5-flash',
+  'kimi-k2.6',
+  'gpt-5.4-mini',
+  'claude-sonnet-3-5'
+] as const satisfies readonly AgentModelId[];
 
 export const DEFAULT_PICKER_MODEL_ID: AgentModelId = 'gemini-2.5-flash';