



impossible to
possible

LucyBrain Switzerland ○ AI Daily
How to Use Claude Opus 4.6: Complete Tutorial 2026 (Step-by-Step Guide)
February 23, 2026
TL;DR: Claude Opus Tutorial
What it is: Anthropic's smartest AI model (Feb 2026)
Cost: $20/month (Claude Pro)
Main features: 1M context, best writing, thoughtful analysis
Best for: Long documents, quality writing, complex analysis
This guide: Beginner to power user in 30 minutes
Most people use Claude wrong.
Here's how to unlock its full power.
What Is Claude Opus 4.6?
Simple answer: Anthropic's most capable AI
Released: February 5, 2026
Key specs:
✓ 1M token context (2,500+ pages)
✓ Best writing quality
✓ Most thoughtful responses
✓ Honest about limitations
✓ Follows instructions precisely
vs Sonnet 4.6:
Opus = Smartest, slower, Pro only
Sonnet = Fast, capable, free tier
Step 1: Get Access (5 Minutes)
Sign Up
Free tier:
✓ Sonnet 4.6 (limited messages/day)
✓ Good for trying Claude
Claude Pro ($20/month):
✓ Opus 4.6 access
✓ Sonnet 4.6 (5x more messages)
✓ Priority access
✓ Early features
How to upgrade:
Go to claude.ai
Click "Upgrade to Pro"
Enter payment
Immediate access
Step 2: Choose the Right Model
Model Selector
Sonnet 4.6 (default):
✓ Fast responses
✓ Good for most tasks
✓ Free tier available
Opus 4.6 (Pro only):
✓ Best quality
✓ Complex reasoning
✓ Worth wait time
When to use Opus:
Analyzing long documents
Writing important content
Complex problem-solving
Research and analysis
When Sonnet is fine:
Quick questions
Simple tasks
Drafting (can refine with Opus)
Step 3: Master the 1M Context Window
What 1M Tokens Means
Roughly equals:
750,000 words
2,500 pages
10 books
Entire codebase
Year of emails
vs competitors:
ChatGPT: 128K tokens
Gemini: 1M tokens
Claude: 1M tokens (but better analysis)
How to Use Long Context
Upload documents:
Click paperclip icon
Upload PDF/text files (up to 5 at once)
Reference in conversation
Example workflow:
Result: Understands entire document, not just chunks
Multi-Document Analysis
Upload multiple files:
Claude reads all 5 completely
Step 4: Writing with Claude
Quality Writing
Claude's writing is best because:
✓ Natural tone
✓ Nuanced thinking
✓ Avoids AI clichés
✓ Follows style instructions
Example prompt:
Iterative Editing
Strategy: Get 80% → refine to 100%
Workflow:
Result: High-quality output through collaboration
Step 5: Analysis & Research
Document Analysis
Contract review example:
Competitive Research
Example:
Step 6: Coding with Claude
Code Quality
Claude writes:
✓ Clean code
✓ Well-commented
✓ Follows best practices
✓ Handles edge cases
Example:
Code Review
Example:
Step 7: Advanced Features
Projects (Organize Work)
What it is: Separate conversations with different contexts
How to use:
Temporary Chat (Privacy)
What it is: Conversations not saved or trained on
When to use:
✓ Sensitive information
✓ Confidential documents
✓ Personal data
✓ Client work
How: Toggle "Temporary chat" before starting
Artifacts (Share Outputs)
What it is: Shareable documents, code, etc.
Automatically created for:
Long documents (500+ words)
Code (50+ lines)
Structured content
Share: Click artifact → Copy link
Real Workflows
Workflow 1: Research Paper
Goal: Analyze 10 academic papers
Steps:
Time: 30 minutes (vs days manually)
Workflow 2: Content Creation
Goal: Write thought leadership article
Steps:
Time: 1 hour (vs 4 hours)
Workflow 3: Code Refactor
Goal: Modernize legacy code
Steps:
Time: 2 hours (vs 1 day)
Pro Tips
Tip 1: Be specific
Bad: "Write about AI"
Good: "Write 1,200-word article on AI coding tools for professional developers. Include real examples, benchmarks, and honest pros/cons. Conversational but authoritative tone."
Tip 2: Provide context
Bad: "Is this good?"
Good: "Review this email for [audience]. Goal is [X]. Does it achieve that? How to improve?"
Tip 3: Use examples
Bad: "Write in my style"
Good: "Write like this example: [paste]. Notice the short sentences and direct tone. Match that."
Tip 4: Iterate
Don't expect perfection first try.
Get 80% → refine → refine → 100%
Tip 5: Reference previous responses
"Based on the analysis you just did, now create [X]"
Claude remembers entire conversation.
Common Issues
Issue 1: Response cut off
Problem: Long response stops mid-sentence
Solution: "Continue" or "Finish that response"
Issue 2: Hit usage limit
Problem: Daily limit reached (free tier)
Solution:
✓ Upgrade to Pro
✓ Wait until reset (midnight PT)
✓ Use Sonnet instead of Opus
Issue 3: Wrong model selected
Problem: Slow response or unexpected quality
Solution: Check model selector. Switch between Sonnet/Opus as needed.
Opus 4.6 vs Sonnet 4.6
Use Opus when:
✓ Analyzing important documents
✓ Writing high-stakes content
✓ Complex reasoning needed
✓ Quality matters most
✓ Can afford wait time
Use Sonnet when:
✓ Quick questions
✓ Drafting (refine later)
✓ Simple tasks
✓ Speed matters
✓ Save Opus quota
Pricing Breakdown
Free tier:
✓ Sonnet 4.6 unlimited (with daily limits)
✓ Good for trying Claude
Pro ($20/month):
✓ Opus 4.6 access
✓ 5x more Sonnet messages
✓ Priority access
✓ Early features
Worth it if:
✓ Use AI daily
✓ Long document analysis
✓ Quality writing matters
✓ Complex work
Math:
Save 2 hours/week = 8 hours/month
If worth $50/hour = $400 value
ROI = 20x
Frequently Asked Questions
Opus vs GPT-4?
Opus: Better writing, longer context, more thoughtful
GPT-4: Faster, more tools, image generation
Can Claude access internet?
No. Knowledge cutoff. Use Gemini for current info.
Upload limit?
5 files per message. Each file <10MB.
Does Claude train on my data?
Not in temporary chat. Regular chat: yes unless opted out.
Best for coding?
Good at code. Cursor/Claude Code better for IDE integration.
Can it generate images?
No. Use ChatGPT (DALL-E) or Midjourney.
Related Reading
www.topfreeprompts.com
Access 80,000+ prompts optimized for Claude Opus 4.6. Get better results with proven templates.


