Replace deprecated claude-*-4-0 model aliases with current ids

The claude-sonnet-4-0 / claude-opus-4-0 aliases now 404 (not_found)
through the AI Gateway. Point the Sonnet 4 nodes at claude-sonnet-4-6
and the Opus 4 node at claude-opus-4-8, and correct the Opus pricing
to 4.8 rates ($5/$25 per MTok).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: bchapuis

apps/api/src/routes/admin/onboarding-message.ts

@@ -38,7 +38,7 @@ const DORMANCY_DAYS = 30;
 // and lets the gateway inject the real key. Faster end-to-end for the
 // admin's interactive draft flow than Workers AI Llama 70B, and tool-use
 // gives reliable structured JSON.
-const DRAFT_MODEL = "claude-sonnet-4-0";
+const DRAFT_MODEL = "claude-sonnet-4-6";
 
 interface PastSupportMessage {
   direction: "inbound" | "outbound";

packages/runtime/src/nodes/agent/agent-claude-sonnet-4-node.ts

@@ -6,7 +6,7 @@ export class AgentClaudeSonnet4Node extends BaseAgentNode {
   // https://www.anthropic.com/pricing
   protected static readonly agentConfig = {
     provider: "anthropic" as const,
-    model: "claude-sonnet-4-0",
+    model: "claude-sonnet-4-6",
     pricing: { inputCostPerMillion: 3.0, outputCostPerMillion: 15.0 },
   };
 

packages/runtime/src/nodes/anthropic/claude-opus-4-node.ts

@@ -4,8 +4,8 @@ import type { TokenPricing } from "../../utils/usage";
 import { executeAnthropicModel } from "./execute-anthropic-model";
 
 const PRICING: TokenPricing = {
-  inputCostPerMillion: 15.0,
-  outputCostPerMillion: 75.0,
+  inputCostPerMillion: 5.0,
+  outputCostPerMillion: 25.0,
 };
 
 export class ClaudeOpus4Node extends ExecutableNode {
@@ -46,6 +46,6 @@ export class ClaudeOpus4Node extends ExecutableNode {
   };
 
   async execute(context: NodeContext): Promise<NodeExecution> {
-    return executeAnthropicModel(this, context, "claude-opus-4-0", PRICING);
+    return executeAnthropicModel(this, context, "claude-opus-4-8", PRICING);
   }
 }

packages/runtime/src/nodes/anthropic/claude-sonnet-4-node.ts

@@ -45,6 +45,6 @@ export class ClaudeSonnet4Node extends ExecutableNode {
   };
 
   async execute(context: NodeContext): Promise<NodeExecution> {
-    return executeAnthropicModel(this, context, "claude-sonnet-4-0", PRICING);
+    return executeAnthropicModel(this, context, "claude-sonnet-4-6", PRICING);
   }
 }

packages/runtime/src/nodes/email/email-agent-claude-sonnet-4-node.ts

@@ -9,7 +9,7 @@ export class EmailAgentClaudeSonnet4Node extends BaseEmailAgentNode {
   // https://www.anthropic.com/pricing
   protected static readonly agentConfig = {
     provider: "anthropic" as const,
-    model: "claude-sonnet-4-0",
+    model: "claude-sonnet-4-6",
     pricing: { inputCostPerMillion: 3.0, outputCostPerMillion: 15.0 },
   };