fix(core): Remove (latest) tags from models in agent models catalog (no-changelog) (#32023)

packages/@n8n/agents/src/sdk/__tests__/catalog.test.ts

@@ -70,4 +70,58 @@ describe('fetchProviderCatalog', () => {
 		expect(catalog.azure).toBeUndefined();
 		expect(catalog['azure-cognitive-services']).toBeUndefined();
 	});
+
+	it('strips the "(latest)" suffix from model names and drops duplicate pinned snapshots', async () => {
+		const fetchMock = vi.fn().mockResolvedValue({
+			ok: true,
+			json: async () =>
+				await Promise.resolve({
+					anthropic: {
+						id: 'anthropic',
+						name: 'Anthropic',
+						models: {
+							'claude-opus-4-5': {
+								id: 'claude-opus-4-5',
+								name: 'Claude Opus 4.5 (latest)',
+							},
+							'claude-opus-4-5-20251101': {
+								id: 'claude-opus-4-5-20251101',
+								name: 'Claude Opus 4.5',
+							},
+							'claude-opus-4-8': {
+								id: 'claude-opus-4-8',
+								name: 'Claude Opus 4.8',
+							},
+							'claude-3-5-haiku-latest': {
+								id: 'claude-3-5-haiku-latest',
+								name: 'Claude Haiku 3.5 (latest)',
+							},
+						},
+					},
+					google: {
+						id: 'google',
+						name: 'Google',
+						models: {
+							'gemini-flash-latest': {
+								id: 'gemini-flash-latest',
+								name: 'Gemini Flash Latest',
+							},
+						},
+					},
+				}),
+		});
+		global.fetch = fetchMock as typeof fetch;
+
+		const catalog = await fetchProviderCatalog();
+
+		// Alias keeps its id but loses the "(latest)" tag
+		expect(catalog.anthropic.models['claude-opus-4-5'].name).toBe('Claude Opus 4.5');
+		expect(catalog.anthropic.models['claude-3-5-haiku-latest'].name).toBe('Claude Haiku 3.5');
+		// Pinned snapshot with the same name as an alias is dropped
+		expect(catalog.anthropic.models['claude-opus-4-5-20251101']).toBeUndefined();
+		// Models without a same-named alias are untouched
+		expect(catalog.anthropic.models['claude-opus-4-8'].name).toBe('Claude Opus 4.8');
+		// Only the parenthesized suffix is stripped, not other "latest" naming
+		expect(catalog.google.models['gemini-flash-latest'].name).toBe('Gemini Flash Latest');
+	});
 });

packages/@n8n/agents/src/sdk/catalog.ts

@@ -82,6 +82,33 @@ function toAgentProviderId(modelsDevProviderId: string): string {
 	return MODELS_DEV_PROVIDER_ALIASES[modelsDevProviderId] ?? modelsDevProviderId;
 }
 
+const LATEST_NAME_SUFFIX = /\s*\(latest\)$/i;
+
+/**
+ * models.dev names versionless alias models with a " (latest)" suffix
+ * (e.g. `claude-opus-4-5` → "Claude Opus 4.5 (latest)"), which quickly goes
+ * stale as newer models ship. Strip the suffix from every model name, and when
+ * a pinned snapshot shares the resulting name with an alias (e.g.
+ * `claude-opus-4-5-20251101` "Claude Opus 4.5"), drop the snapshot so the
+ * alias is the single entry for that model.
+ */
+function normalizeLatestModelNames(models: Record<string, ModelInfo>): void {
+	const aliasNames = new Set<string>();
+	for (const model of Object.values(models)) {
+		if (LATEST_NAME_SUFFIX.test(model.name)) {
+			aliasNames.add(model.name.replace(LATEST_NAME_SUFFIX, ''));
+		}
+	}
+
+	for (const [modelId, model] of Object.entries(models)) {
+		if (LATEST_NAME_SUFFIX.test(model.name)) {
+			model.name = model.name.replace(LATEST_NAME_SUFFIX, '');
+		} else if (aliasNames.has(model.name)) {
+			delete models[modelId];
+		}
+	}
+}
+
 /**
  * Fetch the provider/model catalog from models.dev.
  *
@@ -146,6 +173,10 @@ export async function fetchProviderCatalog(): Promise<ProviderCatalog> {
 		};
 	}
 
+	for (const provider of Object.values(catalog)) {
+		normalizeLatestModelNames(provider.models);
+	}
+
 	return catalog;
 }