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templates/anthropic-setup.ts

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+// Anthropic provider configuration
+// AI SDK Core - Anthropic (Claude) setup and usage
+
+import { generateText } from 'ai';
+import { anthropic } from '@ai-sdk/anthropic';
+
+async function main() {
+  console.log('=== Anthropic (Claude) Provider Setup ===\n');
+
+  // Method 1: Use environment variable (recommended)
+  // ANTHROPIC_API_KEY=sk-ant-...
+  const model1 = anthropic('claude-sonnet-4-5');
+
+  // Method 2: Explicit API key
+  const model2 = anthropic('claude-sonnet-4-5', {
+    apiKey: process.env.ANTHROPIC_API_KEY,
+  });
+
+  // Available models (Claude 4.x family - current)
+  const models = {
+    sonnet45: anthropic('claude-sonnet-4-5'),  // Latest, recommended
+    opus4: anthropic('claude-opus-4-0'),       // Highest intelligence
+    haiku45: anthropic('claude-haiku-4-5'),    // Fastest
+  };
+
+  // Legacy models (Claude 3.x - deprecated, use Claude 4.x instead)
+  // const legacyModels = {
+  //   sonnet35: anthropic('claude-3-5-sonnet-20241022'),
+  //   opus3: anthropic('claude-3-opus-20240229'),
+  //   haiku3: anthropic('claude-3-haiku-20240307'),
+  // };
+
+  // Example: Generate text with Claude
+  console.log('Generating text with Claude Sonnet 4.5...\n');
+
+  const result = await generateText({
+    model: models.sonnet45,
+    prompt: 'Explain what makes Claude different from other AI assistants in 2 sentences.',
+    maxOutputTokens: 150,
+  });
+
+  console.log('Response:', result.text);
+  console.log('\nUsage:');
+  console.log('- Prompt tokens:', result.usage.promptTokens);
+  console.log('- Completion tokens:', result.usage.completionTokens);
+  console.log('- Total tokens:', result.usage.totalTokens);
+
+  // Example: Long context handling
+  console.log('\n=== Long Context Example ===\n');
+
+  const longContextResult = await generateText({
+    model: models.sonnet45,
+    messages: [
+      {
+        role: 'user',
+        content: 'I will give you a long document to analyze. Here it is: ' + 'Lorem ipsum '.repeat(1000),
+      },
+      {
+        role: 'user',
+        content: 'Now summarize the key points.',
+      },
+    ],
+    maxOutputTokens: 200,
+  });
+
+  console.log('Long context summary:', longContextResult.text);
+
+  // Model selection guide
+  console.log('\n=== Model Selection Guide ===');
+  console.log('- Claude Sonnet 4.5: Latest model, best balance (recommended)');
+  console.log('- Claude Opus 4.0: Highest intelligence for complex reasoning');
+  console.log('- Claude Haiku 4.5: Fastest and most cost-effective');
+  console.log('\nAll Claude 4.x models support extended context windows');
+  console.log('Note: Claude 3.x models deprecated in 2025, use Claude 4.x instead');
+}
+
+main().catch(console.error);