✍️Text Generation Mastery

Summaries, content, code, translations, and data extraction

Text Generation with Claude

Claude is one of the best text generators available. Here's how to use it for common tasks.

Summarization

JavaScript
const response = await client.messages.create({
  model: "claude-sonnet-4-6",
  max_tokens: 500,
  messages: [{
    role: "user",
    content: `Summarize this article in 3 bullet points:

    [paste your article text here]`
  }]
});

Code Generation

JavaScript
const response = await client.messages.create({
  model: "claude-sonnet-4-6",
  max_tokens: 2000,
  system: "You are an expert programmer. Write clean, well-commented code.",
  messages: [{
    role: "user",
    content: "Write a TypeScript function that validates email addresses using regex"
  }]
});

Data Extraction

JavaScript
const response = await client.messages.create({
  model: "claude-sonnet-4-6",
  max_tokens: 1000,
  messages: [{
    role: "user",
    content: `Extract the following from this email:
- Sender name
- Company
- Topic
- Action items

Email: "Hi, I'm Sarah from Acme Corp. We need to discuss the Q4 budget.
Please review the attached spreadsheet and schedule a meeting by Friday."`
  }]
});

Translation

JavaScript
const response = await client.messages.create({
  model: "claude-sonnet-4-6",
  max_tokens: 1000,
  messages: [{
    role: "user",
    content: `Translate to French:
"The quick brown fox jumps over the lazy dog."`
  }]
});

Content Generation

JavaScript
const response = await client.messages.create({
  model: "claude-sonnet-4-6",
  max_tokens: 2000,
  system: "You are a skilled content writer who creates engaging, SEO-friendly content.",
  messages: [{
    role: "user",
    content: `Write a blog post about "5 Tips for Learning Programming".
Tone: Friendly and encouraging
Length: About 500 words
Include: practical examples for each tip`
  }]
});

Text Capabilities Quick Reference

Task	System Prompt Hint	Temperature
Summarization	"Be concise and accurate"	0.3
Code generation	"Write clean, production code"	0
Creative writing	"Be creative and engaging"	0.8
Data extraction	"Extract exactly what's asked"	0
Translation	"Translate naturally, not literally"	0.3
Q&A	"Be helpful and accurate"	0.5

Next up: Advanced features — vision, extended thinking, tools, and structured outputs.

Module 5

3/7

💬 Messages API Deep Dive

Streaming Responses 🌊

3/7