Consolidation

apps/sim/app/api/copilot/chat/route.ts

@@ -9,7 +9,6 @@ import { buildConversationHistory } from '@/lib/copilot/chat-context'
 import { resolveOrCreateChat } from '@/lib/copilot/chat-lifecycle'
 import { buildCopilotRequestPayload } from '@/lib/copilot/chat-payload'
 import { generateChatTitle } from '@/lib/copilot/chat-title'
-import { getCopilotModel } from '@/lib/copilot/config'
 import { COPILOT_REQUEST_MODES } from '@/lib/copilot/models'
 import { orchestrateCopilotStream } from '@/lib/copilot/orchestrator'
 import {
@@ -24,7 +23,6 @@ import {
   createRequestTracker,
   createUnauthorizedResponse,
 } from '@/lib/copilot/request-helpers'
-import { env } from '@/lib/core/config/env'
 import { resolveWorkflowIdForUser } from '@/lib/workflows/utils'
 
 const logger = createLogger('CopilotChatAPI')
@@ -43,7 +41,7 @@ const ChatMessageSchema = z.object({
   chatId: z.string().optional(),
   workflowId: z.string().optional(),
   workflowName: z.string().optional(),
-  model: z.string().optional().default('claude-4.6-opus'),
+  model: z.string().optional().default('claude-opus-4-6'),
   mode: z.enum(COPILOT_REQUEST_MODES).optional().default('agent'),
   prefetch: z.boolean().optional(),
   createNewChat: z.boolean().optional().default(false),
@@ -173,14 +171,14 @@ export async function POST(req: NextRequest) {
     let currentChat: any = null
     let conversationHistory: any[] = []
     let actualChatId = chatId
+    const selectedModel = model || 'claude-opus-4-6'
 
     if (chatId || createNewChat) {
-      const defaultsForChatRow = getCopilotModel('chat')
       const chatResult = await resolveOrCreateChat({
         chatId,
         userId: authenticatedUserId,
         workflowId,
-        model: defaultsForChatRow.model,
+        model: selectedModel,
       })
       currentChat = chatResult.chat
       actualChatId = chatResult.chatId || chatId
@@ -191,8 +189,6 @@ export async function POST(req: NextRequest) {
       conversationHistory = history.history
     }
 
-    const defaults = getCopilotModel('chat')
-    const selectedModel = model || defaults.model
     const effectiveMode = mode === 'agent' ? 'build' : mode
     const effectiveConversationId =
       (currentChat?.conversationId as string | undefined) || conversationId
@@ -284,7 +280,7 @@ export async function POST(req: NextRequest) {
           }
 
           if (actualChatId && !currentChat?.title && conversationHistory.length === 0) {
-            generateChatTitle(message)
+            generateChatTitle({ message, model: selectedModel, provider })
               .then(async (title) => {
                 if (title) {
                   await db
@@ -373,10 +369,7 @@ export async function POST(req: NextRequest) {
       content: nonStreamingResult.content,
       toolCalls: nonStreamingResult.toolCalls,
       model: selectedModel,
-      provider:
-        (requestPayload?.provider as Record<string, unknown>)?.provider ||
-        env.COPILOT_PROVIDER ||
-        'openai',
+      provider: typeof requestPayload?.provider === 'string' ? requestPayload.provider : undefined,
     }
 
     logger.info(`[${tracker.requestId}] Non-streaming response from orchestrator:`, {
@@ -414,7 +407,7 @@ export async function POST(req: NextRequest) {
       // Start title generation in parallel if this is first message (non-streaming)
       if (actualChatId && !currentChat.title && conversationHistory.length === 0) {
         logger.info(`[${tracker.requestId}] Starting title generation for non-streaming response`)
-        generateChatTitle(message)
+        generateChatTitle({ message, model: selectedModel, provider })
           .then(async (title) => {
             if (title) {
               await db

apps/sim/app/api/copilot/models/route.ts

@@ -2,11 +2,27 @@ import { createLogger } from '@sim/logger'
 import { type NextRequest, NextResponse } from 'next/server'
 import { SIM_AGENT_API_URL } from '@/lib/copilot/constants'
 import { authenticateCopilotRequestSessionOnly } from '@/lib/copilot/request-helpers'
-import { env } from '@/lib/core/config/env'
 import type { AvailableModel } from '@/lib/copilot/types'
+import { env } from '@/lib/core/config/env'
 
 const logger = createLogger('CopilotModelsAPI')
 
+interface RawAvailableModel {
+  id: string
+  friendlyName?: string
+  displayName?: string
+  provider?: string
+}
+
+function isRawAvailableModel(item: unknown): item is RawAvailableModel {
+  return (
+    typeof item === 'object' &&
+    item !== null &&
+    'id' in item &&
+    typeof (item as { id: unknown }).id === 'string'
+  )
+}
+
 export async function GET(_req: NextRequest) {
   const { userId, isAuthenticated } = await authenticateCopilotRequestSessionOnly()
   if (!isAuthenticated || !userId) {
@@ -44,8 +60,8 @@ export async function GET(_req: NextRequest) {
 
     const rawModels = Array.isArray(payload?.models) ? payload.models : []
     const models: AvailableModel[] = rawModels
-      .filter((item: any) => item && typeof item.id === 'string')
-      .map((item: any) => ({
+      .filter((item: unknown): item is RawAvailableModel => isRawAvailableModel(item))
+      .map((item: RawAvailableModel) => ({
         id: item.id,
         friendlyName: item.friendlyName || item.displayName || item.id,
         provider: item.provider || 'unknown',

apps/sim/app/api/copilot/user-models/route.ts

@@ -9,28 +9,12 @@ import { settings } from '@/../../packages/db/schema'
 const logger = createLogger('CopilotUserModelsAPI')
 
 const DEFAULT_ENABLED_MODELS: Record<CopilotModelId, boolean> = {
-  'gpt-4o': false,
-  'gpt-4.1': false,
-  'gpt-5-fast': false,
-  'gpt-5': true,
-  'gpt-5-medium': false,
-  'gpt-5-high': false,
-  'gpt-5.1-fast': false,
-  'gpt-5.1': false,
-  'gpt-5.1-medium': false,
-  'gpt-5.1-high': false,
-  'gpt-5-codex': false,
-  'gpt-5.1-codex': false,
-  'gpt-5.2': false,
+  'claude-opus-4-6': true,
+  'claude-opus-4-5': true,
+  'claude-sonnet-4-5': true,
+  'claude-haiku-4-5': true,
+  'gpt-5.2': true,
   'gpt-5.2-codex': true,
-  'gpt-5.2-pro': true,
-  o3: true,
-  'claude-4-sonnet': false,
-  'claude-4.5-haiku': true,
-  'claude-4.5-sonnet': true,
-  'claude-4.6-opus': true,
-  'claude-4.5-opus': true,
-  'claude-4.1-opus': false,
   'gemini-3-pro': true,
 }
 

apps/sim/lib/copilot/chat-title.ts

@@ -1,77 +1,57 @@
 import { createLogger } from '@sim/logger'
+import { SIM_AGENT_API_URL } from '@/lib/copilot/constants'
 import { env } from '@/lib/core/config/env'
-import { extractResponseText } from '@/providers/openai/utils'
 
 const logger = createLogger('SimAgentUtils')
 
-const azureApiKey = env.AZURE_OPENAI_API_KEY
-const azureEndpoint = env.AZURE_OPENAI_ENDPOINT
-const azureApiVersion = env.AZURE_OPENAI_API_VERSION
-const chatTitleModelName = env.WAND_OPENAI_MODEL_NAME || 'gpt-4o'
-const openaiApiKey = env.OPENAI_API_KEY
-
-const useChatTitleAzure = azureApiKey && azureEndpoint && azureApiVersion
+interface GenerateChatTitleParams {
+  message: string
+  model: string
+  provider?: string
+}
 
 /**
  * Generates a short title for a chat based on the first message
- * @param message First user message in the chat
- * @returns A short title or null if API key is not available
+ * using the Copilot backend's server-side provider configuration.
  */
-export async function generateChatTitle(message: string): Promise<string | null> {
-  if (!useChatTitleAzure && !openaiApiKey) {
+export async function generateChatTitle({
+  message,
+  model,
+  provider,
+}: GenerateChatTitleParams): Promise<string | null> {
+  if (!message || !model) {
     return null
   }
 
+  const headers: Record<string, string> = {
+    'Content-Type': 'application/json',
+  }
+  if (env.COPILOT_API_KEY) {
+    headers['x-api-key'] = env.COPILOT_API_KEY
+  }
+
   try {
-    const apiUrl = useChatTitleAzure
-      ? `${azureEndpoint?.replace(/\/$/, '')}/openai/v1/responses?api-version=${azureApiVersion}`
-      : 'https://api.openai.com/v1/responses'
-
-    const headers: Record<string, string> = {
-      'Content-Type': 'application/json',
-      'OpenAI-Beta': 'responses=v1',
-    }
-
-    if (useChatTitleAzure) {
-      headers['api-key'] = azureApiKey!
-    } else {
-      headers.Authorization = `Bearer ${openaiApiKey}`
-    }
-
-    const response = await fetch(apiUrl, {
+    const response = await fetch(`${SIM_AGENT_API_URL}/api/generate-chat-title`, {
       method: 'POST',
       headers,
       body: JSON.stringify({
-        model: useChatTitleAzure ? chatTitleModelName : 'gpt-4o',
-        input: [
-          {
-            role: 'system',
-            content:
-              'Generate a very short title (3-5 words max) for a chat that starts with this message. The title should be concise and descriptive. Do not wrap the title in quotes.',
-          },
-          {
-            role: 'user',
-            content: message,
-          },
-        ],
-        max_output_tokens: 20,
-        temperature: 0.2,
+        message,
+        model,
+        ...(provider ? { provider } : {}),
       }),
     })
 
+    const payload = await response.json().catch(() => ({}))
     if (!response.ok) {
-      const errorText = await response.text()
-      logger.error('Error generating chat title:', {
+      logger.warn('Failed to generate chat title via copilot backend', {
         status: response.status,
-        statusText: response.statusText,
-        error: errorText,
+        error: payload,
       })
       return null
     }
 
-    const data = await response.json()
-    const title = extractResponseText(data.output)?.trim() || null
-    return title
+    const title = typeof payload?.title === 'string' ? payload.title.trim() : ''
+    return title || null
   } catch (error) {
     logger.error('Error generating chat title:', error)
     return null

apps/sim/lib/copilot/config.ts

@@ -5,23 +5,6 @@ import type { ProviderId } from '@/providers/types'
 
 const logger = createLogger('CopilotConfig')
 
-/**
- * Valid provider IDs for validation
- */
-const VALID_PROVIDER_IDS: readonly ProviderId[] = [
-  'openai',
-  'azure-openai',
-  'anthropic',
-  'azure-anthropic',
-  'google',
-  'deepseek',
-  'xai',
-  'cerebras',
-  'mistral',
-  'groq',
-  'ollama',
-] as const
-
 /**
  * Configuration validation constraints
  */
@@ -76,11 +59,6 @@ export interface CopilotConfig {
   }
 }
 
-function validateProviderId(value: string | undefined): ProviderId | null {
-  if (!value) return null
-  return VALID_PROVIDER_IDS.includes(value as ProviderId) ? (value as ProviderId) : null
-}
-
 function parseFloatEnv(value: string | undefined, name: string): number | null {
   if (!value) return null
   const parsed = Number.parseFloat(value)
@@ -131,19 +109,6 @@ export const DEFAULT_COPILOT_CONFIG: CopilotConfig = {
 }
 
 function applyEnvironmentOverrides(config: CopilotConfig): void {
-  const chatProvider = validateProviderId(process.env.COPILOT_CHAT_PROVIDER)
-  if (chatProvider) {
-    config.chat.defaultProvider = chatProvider
-  } else if (process.env.COPILOT_CHAT_PROVIDER) {
-    logger.warn(
-      `Invalid COPILOT_CHAT_PROVIDER: ${process.env.COPILOT_CHAT_PROVIDER}. Valid providers: ${VALID_PROVIDER_IDS.join(', ')}`
-    )
-  }
-
-  if (process.env.COPILOT_CHAT_MODEL) {
-    config.chat.defaultModel = process.env.COPILOT_CHAT_MODEL
-  }
-
   const chatTemperature = parseFloatEnv(
     process.env.COPILOT_CHAT_TEMPERATURE,
     'COPILOT_CHAT_TEMPERATURE'
@@ -157,19 +122,6 @@ function applyEnvironmentOverrides(config: CopilotConfig): void {
     config.chat.maxTokens = chatMaxTokens
   }
 
-  const ragProvider = validateProviderId(process.env.COPILOT_RAG_PROVIDER)
-  if (ragProvider) {
-    config.rag.defaultProvider = ragProvider
-  } else if (process.env.COPILOT_RAG_PROVIDER) {
-    logger.warn(
-      `Invalid COPILOT_RAG_PROVIDER: ${process.env.COPILOT_RAG_PROVIDER}. Valid providers: ${VALID_PROVIDER_IDS.join(', ')}`
-    )
-  }
-
-  if (process.env.COPILOT_RAG_MODEL) {
-    config.rag.defaultModel = process.env.COPILOT_RAG_MODEL
-  }
-
   const ragTemperature = parseFloatEnv(
     process.env.COPILOT_RAG_TEMPERATURE,
     'COPILOT_RAG_TEMPERATURE'

apps/sim/lib/copilot/models.ts

@@ -1,29 +1,3 @@
-export const COPILOT_MODEL_IDS = [
-  'gpt-5-fast',
-  'gpt-5',
-  'gpt-5-medium',
-  'gpt-5-high',
-  'gpt-5.1-fast',
-  'gpt-5.1',
-  'gpt-5.1-medium',
-  'gpt-5.1-high',
-  'gpt-5-codex',
-  'gpt-5.1-codex',
-  'gpt-5.2',
-  'gpt-5.2-codex',
-  'gpt-5.2-pro',
-  'gpt-4o',
-  'gpt-4.1',
-  'o3',
-  'claude-4-sonnet',
-  'claude-4.5-haiku',
-  'claude-4.5-sonnet',
-  'claude-4.6-opus',
-  'claude-4.5-opus',
-  'claude-4.1-opus',
-  'gemini-3-pro',
-] as const
-
 export type CopilotModelId = string
 
 export const COPILOT_MODES = ['ask', 'build', 'plan'] as const

apps/sim/lib/copilot/orchestrator/types.ts

@@ -1,5 +1,3 @@
-import type { CopilotProviderConfig } from '@/lib/copilot/types'
-
 export type SSEEventType =
   | 'chat_id'
   | 'title_updated'
@@ -104,7 +102,7 @@ export interface OrchestratorRequest {
   contexts?: Array<{ type: string; content: string }>
   fileAttachments?: FileAttachment[]
   commands?: string[]
-  provider?: CopilotProviderConfig
+  provider?: string
   streamToolCalls?: boolean
   version?: string
   prefetch?: boolean

apps/sim/lib/copilot/types.ts

@@ -1,4 +1,3 @@
-import type { ProviderId } from '@/providers/types'
 import type { CopilotToolCall, ToolState } from '@/stores/panel'
 
 export type NotificationStatus =
@@ -16,33 +15,3 @@ export interface AvailableModel {
   friendlyName: string
   provider: string
 }
-
-// Provider configuration for Sim Agent requests.
-// This type is only for the `provider` field in requests sent to the Sim Agent.
-export type CopilotProviderConfig =
-  | {
-      provider: 'azure-openai'
-      model: string
-      apiKey?: string
-      apiVersion?: string
-      endpoint?: string
-    }
-  | {
-      provider: 'azure-anthropic'
-      model: string
-      apiKey?: string
-      apiVersion?: string
-      endpoint?: string
-    }
-  | {
-      provider: 'vertex'
-      model: string
-      apiKey?: string
-      vertexProject?: string
-      vertexLocation?: string
-    }
-  | {
-      provider: Exclude<ProviderId, 'azure-openai' | 'azure-anthropic' | 'vertex'>
-      model?: string
-      apiKey?: string
-    }

apps/sim/lib/core/config/env.ts

@@ -29,8 +29,6 @@ export const env = createEnv({
     INTERNAL_API_SECRET:                   z.string().min(32),                     // Secret for internal API authentication
 
     // Copilot
-    COPILOT_PROVIDER:                      z.string().optional(),                  // Provider for copilot API calls
-    COPILOT_MODEL:                         z.string().optional(),                  // Model for copilot API calls
     COPILOT_API_KEY:                       z.string().min(1).optional(),           // Secret for internal sim agent API authentication
     SIM_AGENT_API_URL:                     z.string().url().optional(),            // URL for internal sim agent API
     AGENT_INDEXER_URL:                     z.string().url().optional(),            // URL for agent training data indexer

apps/sim/stores/panel/copilot/store.ts

@@ -42,7 +42,6 @@ import {
   saveMessageCheckpoint,
 } from '@/lib/copilot/messages'
 import type { CopilotTransportMode } from '@/lib/copilot/models'
-import type { AvailableModel } from '@/lib/copilot/types'
 import { parseSSEStream } from '@/lib/copilot/orchestrator/sse-parser'
 import {
   abortAllInProgressTools,
@@ -52,6 +51,7 @@ import {
   stripTodoTags,
 } from '@/lib/copilot/store-utils'
 import { ClientToolCallState } from '@/lib/copilot/tools/client/tool-display-registry'
+import type { AvailableModel } from '@/lib/copilot/types'
 import { getQueryClient } from '@/app/_shell/providers/query-provider'
 import { subscriptionKeys } from '@/hooks/queries/subscription'
 import type {
@@ -577,7 +577,7 @@ async function finalizeStream(
       errorType = 'usage_limit'
     } else if (result.status === 403) {
       errorContent =
-        '_Provider config not allowed for non-enterprise users. Please remove the provider config and try again_'
+        '_Access denied by the Copilot backend. Please verify your API key and server configuration._'
       errorType = 'forbidden'
     } else if (result.status === 426) {
       errorContent =
@@ -2246,7 +2246,7 @@ export const useCopilotStore = create<CopilotStore>()(
             const provider = model.provider || 'unknown'
             // Use composite provider/modelId keys (matching agent block pattern in providers/models.ts)
             // so models with the same raw ID from different providers are uniquely identified.
-            const compositeId = provider ? `${provider}/${model.id}` : model.id
+            const compositeId = `${provider}/${model.id}`
             return {
               id: compositeId,
               friendlyName: model.friendlyName || model.id,