fix(Perplexity Node): Update model from 'r1-1776' to 'sonar' in API and tests (#19440)

packages/nodes-base/credentials/PerplexityApi.credentials.ts

@@ -39,7 +39,7 @@ export class PerplexityApi implements ICredentialType {
 			url: '/chat/completions',
 			method: 'POST',
 			body: {
-				model: 'r1-1776',
+				model: 'sonar',
 				messages: [{ role: 'user', content: 'test' }],
 			},
 			headers: {

packages/nodes-base/nodes/Perplexity/descriptions/chat/complete.operation.ts

@@ -6,10 +6,9 @@ const properties: INodeProperties[] = [
 		displayName: 'Model',
 		name: 'model',
 		type: 'options',
-		default: 'r1-1776',
+		default: 'sonar',
 		required: true,
 		options: [
-			{ name: 'R1-1776', value: 'r1-1776' },
 			{ name: 'Sonar', value: 'sonar' },
 			{ name: 'Sonar Deep Research', value: 'sonar-deep-research' },
 			{ name: 'Sonar Pro', value: 'sonar-pro' },

packages/nodes-base/nodes/Perplexity/test/chat/complete.test.ts

@@ -14,7 +14,7 @@ describe('Perplexity Node - Chat Completions', () => {
 		nock('https://api.perplexity.ai')
 			.post('/chat/completions', (body) => {
 				return (
-					body?.model?.value === 'r1-1776' &&
+					body?.model?.value === 'sonar' &&
 					body?.model?.mode === 'id' &&
 					Array.isArray(body?.messages) &&
 					body.messages.length === 3 &&
@@ -25,7 +25,7 @@ describe('Perplexity Node - Chat Completions', () => {
 			})
 			.reply(200, {
 				id: '6bb24c98-3071-4691-9a7b-dc4bc18c3c2c',
-				model: 'r1-1776',
+				model: 'sonar',
 				created: 1743161086,
 				object: 'chat.completion',
 				usage: {

packages/nodes-base/nodes/Perplexity/test/chat/complete.workflow.json

@@ -12,7 +12,7 @@
 			"parameters": {
 				"model": {
 					"__rl": true,
-					"value": "r1-1776",
+					"value": "sonar",
 					"mode": "id"
 				},
 				"messages": {
@@ -73,7 +73,7 @@
 			{
 				"json": {
 					"id": "6bb24c98-3071-4691-9a7b-dc4bc18c3c2c",
-					"model": "r1-1776",
+					"model": "sonar",
 					"created": 1743161086,
 					"usage": {
 						"prompt_tokens": 4,

packages/nodes-base/nodes/Perplexity/test/credentials/PerplexityApi.test.ts

@@ -16,7 +16,7 @@ describe('Perplexity API Credentials', () => {
 				url: 'https://api.perplexity.ai/chat/completions',
 				method: 'POST',
 				body: {
-					model: 'r1-1776',
+					model: 'sonar',
 					messages: [{ role: 'user', content: 'test' }],
 				},
 				headers: {