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fix(copilot): make default model opus 4.5 #3209

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Merged
Sg312 merged 2 commits into from
Feb 12, 2026
+11 −11
Merged

fix(copilot): make default model opus 4.5 #3209

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09c9477
Fix default model
Sg312 Feb 12, 2026
04820a0
Fix
Sg312 Feb 12, 2026
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4 changes: 2 additions & 2 deletions apps/sim/app/api/copilot/chat/route.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -85,7 +85,7 @@ const ChatMessageSchema = z.object({
chatId: z.string().optional(),
workflowId: z.string().optional(),
workflowName: z.string().optional(),
model: z.string().optional().default('claude-opus-4-6'),
model: z.string().optional().default('claude-opus-4-5'),
mode: z.enum(COPILOT_REQUEST_MODES).optional().default('agent'),
prefetch: z.boolean().optional(),
createNewChat: z.boolean().optional().default(false),
Expand Down Expand Up @@ -238,7 +238,7 @@ export async function POST(req: NextRequest) {
let currentChat: any = null
let conversationHistory: any[] = []
let actualChatId = chatId
const selectedModel = model || 'claude-opus-4-6'
const selectedModel = model || 'claude-opus-4-5'

if (chatId || createNewChat) {
const chatResult = await resolveOrCreateChat({
Expand Down
2 changes: 1 addition & 1 deletion apps/sim/app/api/mcp/copilot/route.ts
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Expand Up @@ -38,7 +38,7 @@ import {

const logger = createLogger('CopilotMcpAPI')
const mcpRateLimiter = new RateLimiter()
const DEFAULT_COPILOT_MODEL = 'claude-opus-4-6'
const DEFAULT_COPILOT_MODEL = 'claude-opus-4-5'

export const dynamic = 'force-dynamic'
export const runtime = 'nodejs'
Expand Down
2 changes: 1 addition & 1 deletion apps/sim/app/api/v1/copilot/chat/route.ts
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Expand Up @@ -8,7 +8,7 @@ import { resolveWorkflowIdForUser } from '@/lib/workflows/utils'
import { authenticateV1Request } from '@/app/api/v1/auth'

const logger = createLogger('CopilotHeadlessAPI')
const DEFAULT_COPILOT_MODEL = 'claude-opus-4-6'
const DEFAULT_COPILOT_MODEL = 'claude-opus-4-5'

const RequestSchema = z.object({
message: z.string().min(1, 'message is required'),
Expand Down
14 changes: 7 additions & 7 deletions apps/sim/stores/panel/copilot/store.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1042,7 +1042,7 @@ const cachedAutoAllowedTools = readAutoAllowedToolsFromStorage()
// Initial state (subset required for UI/streaming)
const initialState = {
mode: 'build' as const,
selectedModel: 'anthropic/claude-opus-4-6' as CopilotStore['selectedModel'],
selectedModel: 'anthropic/claude-opus-4-5' as CopilotStore['selectedModel'],
agentPrefetch: false,
availableModels: [] as AvailableModel[],
isLoadingModels: false,
Expand Down Expand Up @@ -2381,17 +2381,17 @@ export const useCopilotStore = create<CopilotStore>()(
(model) => model.id === normalizedSelectedModel
)

// Pick the best default: prefer claude-opus-4-6 with provider priority:
// Pick the best default: prefer claude-opus-4-5 with provider priority:
// direct anthropic > bedrock > azure-anthropic > any other.
let nextSelectedModel = normalizedSelectedModel
if (!selectedModelExists && normalizedModels.length > 0) {
let opus46: AvailableModel | undefined
let opus45: AvailableModel | undefined
for (const prov of MODEL_PROVIDER_PRIORITY) {
opus46 = normalizedModels.find((m) => m.id === `${prov}/claude-opus-4-6`)
if (opus46) break
opus45 = normalizedModels.find((m) => m.id === `${prov}/claude-opus-4-5`)
if (opus45) break
}
if (!opus46) opus46 = normalizedModels.find((m) => m.id.endsWith('/claude-opus-4-6'))
nextSelectedModel = opus46 ? opus46.id : normalizedModels[0].id
if (!opus45) opus45 = normalizedModels.find((m) => m.id.endsWith('/claude-opus-4-5'))
nextSelectedModel = opus45 ? opus45.id : normalizedModels[0].id
}

set({
Expand Down