The most complete Claude 3.5 tutorial. Covers setup, core chat skills, advanced features, prompt techniques, and practical use cases—so you can get the most out of Claude.

Claude 3.5 Tutorial (2026): From Beginner to Power User (Complete Guide)

Claude 3.5 is Anthropic’s latest AI assistant, known for excellent writing, a very long context window, and a more honest/reliable style. Whether you’re new to AI or switching from another tool, this guide will help you master Claude end to end.

Meet Claude: not just “another ChatGPT”

What is Claude?

Claude is a conversational AI assistant developed by Anthropic. The founders come from OpenAI, and their core mission is to build AI that is “safe, helpful, and honest.”

What makes Claude different?

Compared to other assistants, Claude has several clear advantages:

Strength	What it means
Extra-long context	200K tokens—roughly the length of a novel
Writing quality	Natural, fluent tone with less “AI voice”
Honesty & reliability	More likely to say “I’m not sure” instead of guessing
Multilingual	Especially strong in Traditional Chinese
Coding support	Understands complex code and explains deeply

Start using Claude

Claude model lineup

Claude 3.5 family:

Claude 3.5 Opus: most powerful, best for complex reasoning
Claude 3.5 Sonnet: balanced, great speed/quality ratio
Claude 3.5 Haiku: lightweight, fastest responses

How to choose:

Daily use: Sonnet is enough
Deep analysis, long-form writing: Opus
Quick answers, simple tasks: Haiku

Chapter 1: Getting started with Claude

1.1 Create an account

Steps:

Go to claude.ai
Click “Sign up”
Choose Google or Email login
Complete verification
Start chatting

1.2 Learn the interface

Claude’s UI is intentionally minimal:

Left sidebar: chat history
Center: conversation window
Bottom: input box + attachment button
Top right: settings and account

1.3 Subscription plans

Plan	Monthly	Highlights
Free	$0	Basic usage with limits
Pro	$20	5× usage, priority responses, Projects
Team	$30/user	Collaboration + admin features

My recommendation: If you use AI every day, Pro is worth it. The productivity gain from $20/month usually far exceeds the cost. Subscribe to Claude Pro

Chapter 2: Core chat skills

2.1 Start a chat

Type in the input box and press Enter. That’s it.

Example: ``


You: Help me write a leave request email
Claude: [Generates a complete email]


2.2 Upload files
Claude can work with many file formats.
Supported types:

Documents: PDF, Word, TXT, Markdown
Images: JPG, PNG, GIF, WebP
Code: many programming languages
Data: CSV, JSON, XML

How to use:

Click the “+” next to the input box
Upload a file
Ask your question or give instructions
Send

Practical examples:

Upload a PDF financial report and ask for highlights
Upload code and ask Claude to find bugs
Upload an image and ask Claude to describe/analyze it

2.3 Start a new chat
Each chat is independent. To switch topics:

Click “New chat” (top left)
Start a fresh conversation

Why this matters:

Keeps topics from mixing
Saves context window
Keeps the conversation focused

2.4 Manage your chat history

Rename: click the chat title
Delete: click the three dots and delete
Search: use the sidebar search

Chapter 3: Advanced features
3.1 Projects
Projects is a “killer feature” for Claude Pro, letting you build dedicated workspaces.
What Projects includes:

Default background knowledge
Custom instructions
Centralized file management

Create a Project:

Click “Projects” in the sidebar
Choose “New Project”
Set a name and description
Upload relevant files
Write Custom Instructions

Example: an SEO writing Project


Name: SEO Content Creation
Description: Write SEO-optimized blog posts
Custom Instructions:
You are an SEO content expert. When writing, please:

Naturally include target keywords
Use H1/H2/H3 structure
Keep paragraphs short and readable
Include helpful lists and tables
End with an FAQ section

Tone: professional but friendly, like sharing experience with a friend


Upgrade to Claude Pro
3.2 Artifacts
Artifacts let Claude generate interactive outputs—not just plain text.
Artifacts can produce:

HTML pages
React components
Interactive charts
Mermaid diagrams
SVG graphics
Code snippets

Enable Artifacts:

Go to Settings
Find “Feature Preview”
Turn on “Artifacts”

Example prompt:


Create a simple to-do list web page
that can add and delete items.


Claude will generate an interactive to-do list you can use directly.
3.3 Vision (image understanding)
Claude can “understand” images.
How to use:

Upload an image
Ask your question

Helpful scenarios:

Interpret charts
Describe photos
Extract text (OCR)
Review design mockups
Explain memes

3.4 Long-document analysis
Claude’s 200K token context window is a major advantage.
Rough capacity:

~150k Chinese characters
A full novel
Hundreds of pages of PDF
A large codebase

Use cases:

Upload a whole book for summary
Upload legal documents for explanation
Upload financial reports for analysis
Upload papers and ask research questions

Chapter 4: Prompt techniques
A strong prompt can improve output quality by 10×.
4.1 The basic prompt structure
A good prompt usually includes:

Role: what you want Claude to be
Task: what you want done
Context: relevant background
Output format: how the answer should look
Constraints: things to avoid or limitations

4.2 Effective prompt examples
Simple explanation


Explain quantum computing in a simple way
for someone with no technical background.
Use everyday analogies.


Writing task


Write an article about “How to be more productive in remote work”.
Requirements:

Length: 1500–2000 words
Tone: professional but friendly
Structure: intro, 5 methods (200–300 words each), conclusion
Include actionable advice
Add 3–5 FAQs

Avoid:

Vague statements
Overly formal tone
Common internet clichés


Analysis task


I will upload a financial statement. Please:

Summarize the company’s financial condition (500 words)
Identify 3 positive signals
Identify 3 risk warnings
Compare with peers
Provide recommendations for investors

Use tables for key comparisons and explain jargon in plain language.`


4.3 Advanced techniques
Chain of Thought


Think step by step about this problem: [problem]
First list your reasoning process, then give the conclusion.


Few-shot learning


I want you to rewrite sentences to make them more persuasive.
Example:
Original: This product is easy to use.
Rewrite: This product helped 10,000+ users save 50% of their work time.

Now rewrite: This course is valuable.`


Roleplay


You are an SEO consultant with 20 years of experience.
A client asks: “Why can’t my website rankings improve?”
Answer professionally and give concrete steps.


4.4 Common prompt mistakes
❌ Too vague


Write an article


✅ Specific


Write a 1500-word article on “AI trends in 2026”,
for tech professionals,
with an intro, 3 main trends, and a conclusion.


❌ Too many tasks at once


Write the article, make a slideshow, and translate it into English.


✅ One task at a time


First, create a detailed outline. I’ll confirm it before we expand.


Learn prompt techniques
Chapter 5: Practical use cases
5.1 Content creation
Blog post prompt


Write a blog post about “[topic]”.
Details:

Target readers: [description]
Target keywords: [keywords]
Length: 2000 words
Style: [professional / casual / tutorial]

Structure:

Hooking introduction
Main content (3–5 key points)
Practical tips
FAQ
Conclusion + CTA


Social post prompt


Turn the key points of this article into 5 LinkedIn posts:
[paste article]
For each post:

Start with a strong hook
Use emoji for readability
End with a call to action
Keep it under 200 characters


5.2 Software development
Coding task


Write a Python web scraper that:

Crawls product info from [site]
Saves to a CSV
Includes name, price, and rating

Add error handling and clear comments.`


Debugging


This code has a bug. Please find the issue:
[paste code]

Error message: [error] Expected behavior: [expected] Actual behavior: [actual]`


Code review


Review this code and give suggestions for:

Performance
Readability
Potential bugs
Security
Best practices

[paste code]`


5.3 Learning and research
Paper summary


Summarize the key points of this paper:
[upload PDF]
I need:

A 100-word short summary
Research question and hypotheses
Methodology
Main findings
Limitations and future directions
Implications for my work


Study plan


I want to learn [skill/topic] with the goal of [goal].
My background: [current experience]
Time available: [X] hours/day for [Y] weeks
Learning preference: [reading/videos/hands-on]
Design a learning plan that includes:

Weekly schedule
Weekly goals
Recommended resources
Practice assignments
Milestones


5.4 Business workflows
Market analysis


Analyze the market/industry [industry], including:

Market size and growth trends
Major competitors (at least 5)
SWOT analysis
Opportunities and threats
Go-to-market recommendations

Use tables for comparisons.`


Email writing


Situation: [describe]
Recipient: [relationship]
Goal: [what you want]
Tone: [formal/friendly/urgent]

Write the email and provide 2 versions.`


5.5 Ideation
Brainstorming


I’m planning [project/product] and need ideas.
Background: [describe]
Audience: [describe]
Constraints: [budget/time/resources]
Give me 10 ideas. For each:

Core concept
How to execute
Expected outcome
Potential risks


Start using Claude
Chapter 6: Integrations
6.1 Claude API
If you’re a developer, you can integrate Claude via API.
Basic example:

python
import anthropic
client = anthropic.Anthropic(api_key="your-api-key")

message = client.messages.create( model="claude-3-5-sonnet-20241022", max_tokens=1024, messages=[ {"role": "user", "content": "Hello, Claude!"} ] )``

API pricing:

Model	Input ($/1M tokens)	Output ($/1M tokens)
Opus	$15	$75
Sonnet	$3	$15
Haiku	$0.25	$1.25

6.2 Pairing Claude with other tools

Claude + Notion

Generate content with Claude
Organize it in Notion

Claude + Zapier

Automate workflows
Trigger Claude to process tasks

Claude + Raycast (Mac)

Quick access without opening a browser

Chapter 7: Best practices

7.1 Tips to work faster

Build a prompt template library

Save prompts you use often
Adjust them each time

Use Projects

Create separate Projects for each domain
Set good Custom Instructions

Break long tasks into stages

Ask for an outline first
Confirm direction
Expand section by section

Iterate

Keep the conversation going
Tell Claude: “Make this more…”

7.2 Avoid common pitfalls

Don’t trust blindly

Claude can be wrong
Verify important info

Don’t ask too much at once

Decompose complex tasks
Go step by step

Don’t ignore context limits

Start a new chat when it gets too long
Restate key information

Don’t give up too early

If the first response isn’t great, refine your prompt

7.3 Privacy basics

Avoid uploading sensitive personal data
Be cautious with business secrets
Consider anonymizing data

FAQ

Q1: Which is better—Claude or ChatGPT?

Both are excellent. Claude is stronger for long-form writing, document analysis, and Traditional Chinese. ChatGPT leads in ecosystem, live browsing, and multimodal features. Choose based on your needs—or use both.

Q2: What are the limits of the free plan?

The free plan uses Claude 3.5 Sonnet with usage limits (dynamically adjusted). You may need to wait during peak times. Pro removes most of these constraints.

Q3: Does Claude remember what I said before?

Claude remembers within the same conversation. Different chats are separate—unless you use Projects to set persistent background knowledge.

Q4: Are uploaded files secure?

Anthropic states it does not use your conversations to train models. Still, treat sensitive data carefully. Businesses may prefer Team/Enterprise plans.

Q5: Can Claude browse the web?

Currently, Claude does not browse the web in real time. If you need the latest info, search and provide the sources to Claude.

Q6: How can I get better answers from Claude?

Give more context, specify the output format, provide examples, and iterate with follow-up instructions. Prompt quality is the lever.

Closing

Claude 3.5 is a powerful assistant—but its value depends on how you use it.

Remember:

Claude is a tool; you’re the driver
Prompts determine quality
Verify important information
Keep learning and experimenting

Next steps:

Create an account
Try different task types
Build your own prompt templates
Consider Pro for the full experience

Claude can become one of your most valuable work partners. Start exploring today.

Start using Claude

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Last updated: January 2026 Claude evolves quickly—follow Anthropic’s official updates to stay current!