diff --git a/.env.example b/.env.example
index 6155a95..7a9e3af 100644
--- a/.env.example
+++ b/.env.example
@@ -1,7 +1,7 @@
 # ── Provider API keys ───────────────────────────────────────────────────────
 # Only keys for models you intend to use are required.
 
-# Anthropic — for claude-sonnet-4-6-20250929
+# Anthropic — for claude-sonnet-4-6
 # Get key: https://console.anthropic.com/settings/keys
 ANTHROPIC_API_KEY=your-anthropic-key
 
diff --git a/db/models.js b/db/models.js
index 9ffddd1..32d375b 100644
--- a/db/models.js
+++ b/db/models.js
@@ -47,7 +47,7 @@ export const Job = sequelize.define('Job', {
   model: {
     type: DataTypes.STRING(128),
     allowNull: false,
-    defaultValue: 'anthropic/claude-sonnet-4.6',
+    defaultValue: 'claude-sonnet-4-6',
   },
   inputTokens: { type: DataTypes.INTEGER, allowNull: true },
   outputTokens: { type: DataTypes.INTEGER, allowNull: true },
diff --git a/jobs/queue.js b/jobs/queue.js
index 809e40e..ee32aae 100644
--- a/jobs/queue.js
+++ b/jobs/queue.js
@@ -6,7 +6,7 @@ import { createGoogleGenerativeAI } from '@ai-sdk/google';
 import { createOpenAICompatible } from '@ai-sdk/openai-compatible';
 import { Job } from '../db/models.js';
 import { broadcast } from '../ws/broadcast.js';
-import { findModel, DEFAULT_MODEL_ID } from '../models.js';
+import { findModel, DEFAULT_MODEL_ID, normalizeModelId } from '../models.js';
 
 // ---------------------------------------------------------------------------
 // Provider instances
@@ -43,7 +43,8 @@ const PROVIDERS = {
 };
 
 function resolveModel(modelId) {
-  const meta = findModel(modelId) ?? findModel(DEFAULT_MODEL_ID);
+  const normalized = normalizeModelId(modelId);
+  const meta = findModel(normalized) ?? findModel(DEFAULT_MODEL_ID);
   return PROVIDERS[meta.provider](meta.id);
 }
 
diff --git a/src/models.js b/src/models.js
index 185cc8a..b230d6e 100644
--- a/src/models.js
+++ b/src/models.js
@@ -9,7 +9,7 @@
 
 export const MODELS = [
   {
-    id:       'claude-sonnet-4-6-20250929',
+    id:       'claude-sonnet-4-6',
     label:    'Claude Sonnet 4.6',
     provider: 'anthropic',
     creator:  'Anthropic',
@@ -45,8 +45,19 @@ export const MODELS = [
   },
 ];
 
-export const DEFAULT_MODEL_ID = 'claude-sonnet-4-6-20250929';
+export const DEFAULT_MODEL_ID = 'claude-sonnet-4-6';
 
 export function findModel(id) {
   return MODELS.find(m => m.id === id);
 }
+
+export function normalizeModelId(raw) {
+  if (!raw) return raw;
+  // Allow legacy "provider/model" storage (e.g. "anthropic/claude-sonnet-4.6")
+  const noProvider = String(raw).includes('/') ? String(raw).split('/').pop() : String(raw);
+
+  // Allow legacy dotted Claude naming used in early versions of this repo.
+  if (noProvider === 'claude-sonnet-4.6') return 'claude-sonnet-4-6';
+
+  return noProvider;
+}