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Guide

Complete Claude Guide

Everything You Need to Know About Anthropic's AI Assistant

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The guide

Every section is a compact, self-contained card.

01

What is Claude?

Claude is Anthropic's AI assistant and family of large language models.

You can use it to:

  • Write and rewrite content
  • Research topics
  • Analyze documents and data
  • Summarize information
  • Brainstorm ideas
  • Write and debug code
  • Build apps and websites
  • Analyze images and PDFs
  • Create documents, spreadsheets and presentations
  • Use connected apps and external tools
  • Automate multi-step workflows
  • Perform agentic tasks
02

Current Claude model lineup

Claude Sonnet 5

Best for: Most everyday and professional work

  • Strong at coding, reasoning and tool use
  • Designed for fast, high-volume work
  • Strong computer-use capabilities
  • Good balance of intelligence, speed and cost
  • API price: $2 / million input tokens, $10 / million output tokens

Claude Opus 5

Best for: Advanced professional and technical work

  • Premium Claude model
  • Strong reasoning for difficult tasks
  • Excellent for advanced coding
  • Designed for long-running AI agents
  • Strong at complex knowledge work
  • Supports adjustable effort levels
  • API price: $5 / million input tokens, $25 / million output tokens

Claude Fable 5.1

Best for: Anthropic's hardest generally available workloads

  • Anthropic's most capable generally available model
  • Designed for ambitious, long-running projects
  • Excellent for complex coding
  • Strong at multi-stage knowledge work
  • Can operate across tools and applications
  • Can recover from failures during agentic tasks
  • Improved understanding of diagrams, tables and complex documents
  • API price: $10 / million input tokens, $50 / million output tokens
03

Which model should you use?

Everyday questions
Sonnet 5
Writing and content
Sonnet 5
Fast coding
Sonnet 5
High-volume workflows
Sonnet 5
Complex reasoning
Opus 5
Advanced coding
Opus 5
Production AI agents
Opus 5
High-stakes professional work
Opus 5
Extremely difficult coding
Fable 5.1
Long-running autonomous projects
Fable 5.1
Complex multi-stage knowledge work
Fable 5.1
04

Claude's core capabilities

Writing
Draft articles, emails, reports, scripts, posts and documents.
Reasoning
Break complicated problems into logical steps and analyze trade-offs.
Coding
Generate, explain, debug, refactor and review code.
Vision
Understand uploaded screenshots, charts, diagrams, photos and documents.
Data analysis
Analyze datasets, calculate metrics, write code and create visualizations.
Document analysis
Read PDFs and uploaded files, summarize them and extract insights.
Web search
Search current information on the web when web access is enabled.
Research
Run multi-step research across multiple sources and synthesize findings.
Computer use
Agentic Claude experiences can interact with computer interfaces.
Tool use
Claude models can work with external tools and connected services.
05

Claude Research

Research turns Claude into a multi-step research agent.

Claude can

  • Search repeatedly
  • Investigate different angles
  • Follow promising information
  • Resolve unanswered questions
  • Combine multiple sources
  • Produce cited findings

Best for

  • Market research
  • Competitive research
  • Industry analysis
  • Literature reviews
  • Product research
  • Business research
  • Deep fact-finding
06

Claude Projects

Projects are dedicated AI workspaces.

Each project can contain

  • Separate conversations
  • Uploaded files
  • Project knowledge
  • Custom instructions
  • Project-specific context

Use Projects for

  • A business
  • A client
  • A research project
  • A content system
  • A course
  • A software product
  • A long-running workstream
07

Claude Memory

Claude can remember useful context across conversations where supported.

  • Your role
  • Your projects
  • People you work with
  • Communication preferences
  • Coding preferences
  • Working style
  • Ongoing project details

This reduces the need to repeatedly provide the same context.

08

Claude Skills

Skills give Claude specialized instructions and resources for repeatable tasks.

A Skill can contain

  • Instructions
  • Scripts
  • Reference material
  • Resources
  • Workflow rules

Examples

  • Follow company brand guidelines
  • Create documents in a standard format
  • Analyze data using a specific methodology
  • Generate standardized meeting notes
  • Follow internal business processes

Simple custom Skills can be created using structured instructions without requiring advanced programming.

09

Claude Artifacts

Artifacts provide a dedicated workspace for substantial content Claude creates.

  • Documents
  • Code
  • Websites
  • SVG graphics
  • Diagrams
  • Interactive components
  • Apps
  • Visualizations

You can continue refining an Artifact through conversation.

10

File creation

Claude can create useful files such as:

  • Spreadsheets
  • Presentations
  • Documents
  • PDFs
  • Charts
  • Data visualizations
  • Code files

Create an Excel financial model using this CSV.

Claude can analyze the data, calculate metrics, build formulas, generate charts and produce the finished output.

11

Claude Code

Claude Code is Anthropic's agentic coding environment.

It can help developers

  • Understand codebases
  • Build features
  • Debug problems
  • Refactor code
  • Write tests
  • Review code
  • Work with Git
  • Execute terminal commands
  • Use development tools
  • Automate engineering workflows
  • Handle longer coding tasks

Instead of only generating code snippets, Claude Code can work across a software project.

12

Claude Cowork

Cowork brings Claude's agentic capabilities to broader knowledge work.

It can perform multi-step tasks involving

  • Files
  • Documents
  • Research
  • Connected services
  • Browsers
  • Computer interaction
  • Plugins
  • Workflows

Think of regular Claude as collaborating through conversation. Think of Cowork as delegating a job for Claude to execute.

13

Computer and browser use

Claude's agentic tools can perform actions through computer interfaces. Depending on the Claude product and configuration, Claude can:

  • Navigate websites
  • Click interface elements
  • Work with browser pages
  • Open files
  • Use development tools
  • Perform multi-step digital workflows

This moves Claude from simply answering questions toward executing tasks.

14

Claude Design

Claude Design is a conversational design workspace.

You describe what you want and Claude generates the design on a visual canvas.

Use it to create

  • UI designs
  • Interactive prototypes
  • Presentations
  • Product concepts
  • Dashboards
  • Mobile interfaces

You can provide

  • Screenshots
  • Existing assets
  • Codebases
  • Design systems
  • Reference designs

Then refine the result through conversation and editing.

15

Connectors + MCP

Claude can connect with external tools and data.

MCP stands for Model Context Protocol.

It provides a standardized way for AI systems to connect with

  • Data sources
  • Business applications
  • Developer tools
  • Internal systems
  • External services
MCP
Gives Claude access to tools and data.
Skills
Teach Claude how to perform specialized workflows.
16

Visual content

Claude can generate visual and interactive content such as:

  • Charts
  • Diagrams
  • Interactive visualizations
  • HTML interfaces
  • SVG graphics

Claude can also analyze uploaded images. Its visual creation capabilities can use code, HTML, SVG and related technologies.

17

Extended thinking + effort

For harder tasks, Claude models can devote more computation to reasoning before producing an answer.

Useful for

  • Complex mathematics
  • Difficult coding
  • Planning
  • Analysis
  • Logic
  • Multi-step problems
Higher effort
More computation for difficult problems
Lower effort
Faster and potentially cheaper execution
18

Claude for data analysis

Upload data and ask Claude to:

  • Clean it
  • Analyze it
  • Find patterns
  • Calculate statistics
  • Create charts
  • Write code
  • Build models
  • Explain findings
  • Generate reports
  • Create spreadsheets
19

Claude for content creation

Claude can help create:

  • Social posts
  • Articles
  • Newsletters
  • Video scripts
  • Hooks
  • Ad copy
  • Landing pages
  • Emails
  • Product descriptions
  • Content strategies
  • Research briefs

Better prompt

Create 20 LinkedIn hooks about AI automation for startup founders. Keep each under 20 words. Make them curiosity-driven without making unsupported claims.

20

Claude for learning

Use Claude as a personalized tutor.

Teach me [TOPIC] from beginner to advanced. Use simple explanations, practical examples, exercises and short quizzes.

21

Claude for coding

Instead of: “Build an app.”

Build a responsive expense-tracking web app using React and TypeScript. First create an implementation plan, then build the core functionality, test important flows, identify bugs and fix them before presenting the final result.

22

Claude for research

Instead of: “Research AI agents.”

Research the current AI-agent market. Compare the major categories, companies, business models, adoption trends and unresolved problems. Prioritize primary sources and recent information. Clearly separate facts from analysis.

23

Claude for documents

Upload:

  • Reports
  • Research papers
  • PDFs
  • Contracts
  • Presentations
  • Spreadsheets
  • Notes

Analyze this document and return the key arguments, important numbers, assumptions, risks, contradictions, unanswered questions and five most important takeaways.

24

The perfect Claude prompt formula

Role
Who Claude should act as.
Goal
Exactly what you want accomplished.
Context
Background Claude needs.
Input
The information Claude should work from.
Constraints
Rules it must follow.
Process
How it should approach the task.
Output
Exactly how the result should be structured.
Quality check
What Claude should verify before finishing.
25

Universal Claude prompt template

Act as a [ROLE]. Your goal is to [GOAL]. Context: [BACKGROUND] Use this input: [INPUT] Requirements: [REQUIREMENT 1] [REQUIREMENT 2] [REQUIREMENT 3] Constraints: [CONSTRAINTS] Process: 1. Understand the objective. 2. Identify important assumptions. 3. Work through the problem systematically. 4. Verify important facts and calculations. 5. Review the result for errors. Output: [DESIRED FORMAT] Before finishing, check that the answer is accurate, complete, logically consistent and follows every requirement.

26

10 powerful Claude prompts

Learn
Teach me [TOPIC] from beginner to advanced using simple explanations and practical examples.
Research
Research [TOPIC], compare the strongest available evidence and give me the most important conclusions.
Write
Rewrite this for clarity, simplicity and impact while preserving the original meaning.
Summarize
Summarize this into the essential ideas, important facts, decisions and action items.
Analyze
Analyze this from multiple perspectives. Identify opportunities, risks, assumptions and blind spots.
Brainstorm
Generate 30 unconventional ideas for [GOAL]. Avoid obvious suggestions.
Critique
Critique this constructively. Find weak assumptions, logical gaps and ways to improve it.
Code
Build [PROJECT]. Plan first, implement it, test the important functionality and fix issues before finishing.
Data
Analyze this dataset. Identify important trends, anomalies, relationships and actionable insights.
Decide
Compare [OPTION A] and [OPTION B] against cost, upside, downside, difficulty, time and long-term value, then recommend one.
27

How to get better results

Do

  • Give Claude enough context
  • Define the desired outcome
  • Specify the audience
  • Provide examples
  • Upload relevant files
  • Specify constraints
  • Define the output format
  • Ask it to verify calculations
  • Ask for sources when accuracy matters
  • Break huge projects into clear stages
  • Use Projects for ongoing work
  • Use Research for deeper research
  • Use Skills for repeatable processes
  • Use Claude Code for software engineering
  • Use Cowork for delegated knowledge work

Avoid

  • Extremely vague prompts
  • Assuming every answer is automatically correct
  • Trusting uncited current facts
  • Asking for huge projects without requirements
  • Giving conflicting instructions
  • Using a more expensive model when a faster model is sufficient
28

Claude limitations

Claude can still:

  • Hallucinate information
  • Misinterpret ambiguous prompts
  • Produce incorrect calculations
  • Generate buggy code
  • Misread complex documents
  • Miss recent information without web access
  • Make mistakes while using tools
  • Fail during long agentic workflows

For important work: verify the output.

29

Claude plans

Free
Best for occasional Claude use.
Pro
Best for regular individual users.
Max
Best for heavy individual users.
Team
Best for organizations needing collaboration, administration and higher usage.
Enterprise
Best for organizations requiring advanced security, compliance, governance and scalable usage.
30

Claude ecosystem

Claude
Conversational AI assistant
Projects
Persistent workspaces
Memory
Cross-conversation context
Research
Deep multi-source investigation
Artifacts
Interactive apps and reusable outputs
Skills
Reusable specialized workflows
Connectors + MCP
External tools and data
Claude Code
Agentic software development
Cowork
Agentic knowledge work
Claude Design
Conversational design and prototyping
API
Claude capabilities inside other products
31

Simple Claude workflow

Step 1
Choose the right Claude model.
Step 2
Give it relevant context.
Step 3
Clearly define the desired outcome.
Step 4
Attach files or connect data when useful.
Step 5
Use Research for deep current information.
Step 6
Use Projects for ongoing work.
Step 7
Use Skills for repeatable workflows.
Step 8
Use Artifacts or file creation for finished outputs.
Step 9
Use Claude Code or Cowork when Claude needs to execute larger tasks.
Step 10
Review and verify the final result.

The big idea

Claude has evolved from a conversational chatbot into a broader AI work platform.

  • Think
  • Research
  • Write
  • Analyze
  • Code
  • Design
  • Create
  • Connect
  • Automate
  • Execute

The key is not simply asking Claude questions. Give it the right context, tools, workflows and level of autonomy for the job.

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