🤖 feat: upgrade Claude Opus to 4-5

Author: ammar-agent

mobile/app/workspace-settings.tsx

@@ -10,20 +10,11 @@ import { ThemedText } from "../src/components/ThemedText";
 import { useWorkspaceDefaults } from "../src/hooks/useWorkspaceDefaults";
 import type { ThinkingLevel, WorkspaceMode } from "../src/types/settings";
 import { supports1MContext } from "@/common/utils/ai/models";
+import { KNOWN_MODEL_OPTIONS } from "@/common/constants/knownModels";
 
 const MODE_TABS: WorkspaceMode[] = ["plan", "exec"];
 const THINKING_LEVELS: ThinkingLevel[] = ["off", "low", "medium", "high"];
 
-// Common models from MODEL_ABBREVIATIONS
-const AVAILABLE_MODELS = [
-  { label: "Claude Sonnet 4.5", value: "anthropic:claude-sonnet-4-5" },
-  { label: "Claude Haiku 4.5", value: "anthropic:claude-haiku-4-5" },
-  { label: "Claude Opus 4.1", value: "anthropic:claude-opus-4-1" },
-  { label: "GPT-5", value: "openai:gpt-5" },
-  { label: "GPT-5 Pro", value: "openai:gpt-5-pro" },
-  { label: "GPT-5 Codex", value: "openai:gpt-5-codex" },
-];
-
 function thinkingLevelToValue(level: ThinkingLevel): number {
   const index = THINKING_LEVELS.indexOf(level);
   return index >= 0 ? index : 0;
@@ -110,7 +101,7 @@ export default function WorkspaceSettings(): JSX.Element {
                 }}
                 dropdownIconColor={theme.colors.foregroundPrimary}
               >
-                {AVAILABLE_MODELS.map((model) => (
+                {KNOWN_MODEL_OPTIONS.map((model) => (
                   <Picker.Item
                     key={model.value}
                     label={model.label}

src/common/constants/knownModels.ts

@@ -2,6 +2,8 @@
  * Centralized model metadata. Update model versions here and everywhere else will follow.
  */
 
+import { formatModelDisplayName } from "../utils/ai/modelDisplay";
+
 type ModelProvider = "anthropic" | "openai" | "google" | "xai";
 
 interface KnownModelDefinition {
@@ -43,7 +45,7 @@ const MODEL_DEFINITIONS = {
   },
   OPUS: {
     provider: "anthropic",
-    providerModelId: "claude-opus-4-1",
+    providerModelId: "claude-opus-4-5",
     aliases: ["opus"],
   },
   GPT: {
@@ -151,3 +153,9 @@ export const MODEL_NAMES: Record<ModelProvider, Record<string, string>> = Object
   },
   {} as Record<ModelProvider, Record<string, string>>
 );
+
+/** Picker-friendly list: { label, value } for each known model */
+export const KNOWN_MODEL_OPTIONS = Object.values(KNOWN_MODELS).map((model) => ({
+  label: formatModelDisplayName(model.providerModelId),
+  value: model.id,
+}));

src/common/utils/tokens/models-extra.ts

@@ -22,6 +22,23 @@ interface ModelData {
 }
 
 export const modelsExtra: Record<string, ModelData> = {
+  // Claude Opus 4.5 - Released November 2025
+  // $15/M input, $75/M output (same pricing as Opus 4.1)
+  "claude-opus-4-5": {
+    max_input_tokens: 200000,
+    max_output_tokens: 32000,
+    input_cost_per_token: 0.000015, // $15 per million input tokens
+    output_cost_per_token: 0.000075, // $75 per million output tokens
+    cache_creation_input_token_cost: 0.00001875, // $18.75 per million tokens
+    cache_read_input_token_cost: 0.0000015, // $1.50 per million tokens
+    litellm_provider: "anthropic",
+    mode: "chat",
+    supports_function_calling: true,
+    supports_vision: true,
+    supports_reasoning: true,
+    supports_response_schema: true,
+  },
+
   // GPT-5 Pro - Released October 6, 2025 at DevDay
   // $15/M input, $120/M output
   // Only available via OpenAI's Responses API

src/node/services/mock/scenarios/slashCommands.ts

@@ -65,26 +65,26 @@ const modelStatusTurn: ScenarioTurn = {
         kind: "stream-start",
         delay: 0,
         messageId: "msg-slash-model-status",
-        model: "anthropic:claude-opus-4-1",
+        model: "anthropic:claude-opus-4-5",
       },
       {
         kind: "stream-delta",
         delay: STREAM_BASE_DELAY,
-        text: "Claude Opus 4.1 is now responding with enhanced reasoning capacity.",
+        text: "Claude Opus 4.5 is now responding with enhanced reasoning capacity.",
       },
       {
         kind: "stream-end",
         delay: STREAM_BASE_DELAY * 2,
         metadata: {
-          model: "anthropic:claude-opus-4-1",
+          model: "anthropic:claude-opus-4-5",
           inputTokens: 70,
           outputTokens: 54,
           systemMessageTokens: 12,
         },
         parts: [
           {
             type: "text",
-            text: "I'm responding as Claude Opus 4.1, which you selected via /model opus. Let me know how to proceed.",
+            text: "I'm responding as Claude Opus 4.5, which you selected via /model opus. Let me know how to proceed.",
           },
         ],
       },

tests/e2e/scenarios/slashCommands.spec.ts

@@ -109,17 +109,17 @@ test.describe("slash command flows", () => {
     ).toBeVisible();
 
     await ui.chat.sendMessage("/model opus");
-    await ui.chat.expectStatusMessageContains("Model changed to anthropic:claude-opus-4-1");
-    await expect(modeToggles.getByText("anthropic:claude-opus-4-1", { exact: true })).toBeVisible();
+    await ui.chat.expectStatusMessageContains("Model changed to anthropic:claude-opus-4-5");
+    await expect(modeToggles.getByText("anthropic:claude-opus-4-5", { exact: true })).toBeVisible();
 
     const timeline = await ui.chat.captureStreamTimeline(async () => {
       await ui.chat.sendMessage(SLASH_COMMAND_PROMPTS.MODEL_STATUS);
     });
 
     const streamStart = timeline.events.find((event) => event.type === "stream-start");
-    expect(streamStart?.model).toBe("anthropic:claude-opus-4-1");
+    expect(streamStart?.model).toBe("anthropic:claude-opus-4-5");
     await ui.chat.expectTranscriptContains(
-      "Claude Opus 4.1 is now responding with enhanced reasoning capacity."
+      "Claude Opus 4.5 is now responding with enhanced reasoning capacity."
     );
   });