Note from an earlier video
AI moves fast, and the specific versions, prices and limits have already changed. The current line-up is the Claude 4 family — Opus 4.8, Sonnet 4.6, Haiku 4.5 — plus the new flagship Claude Fable 5. The logic of the line-up (Sonnet — balanced, Opus — complex tasks, Haiku — speed) still holds, but check version numbers and pricing on claude.ai.
Claude AI is a groundbreaking AI from Anthropic, built by a team of former OpenAI employees.
Tldr
Unlike ChatGPT, which simply tries to please the user, Claude uses a unique technology — Constitutional AI — a system of more than 50 clear principles that make its answers more thoughtful and ethical.
The story behind Claude
Claude was created by Dario and Daniela Amodei — a brother and sister who gathered a team of top OpenAI engineers.
What is Constitutional AI?
Constitutional AI is Claude’s key difference from other neural networks. Before giving an answer, Claude runs through a special filter — a “constitution”, a set of principles that includes:
- The principle of “avoiding excessive sycophancy”
- The principle of “preserving human supremacy in meaningful areas”
- The principle of “emotional authenticity”
- The principle of “long-term creative growth”
- and so on…
This makes Claude’s answers more considered and higher quality compared to ChatGPT.
Claude models: which to choose for your tasks
Claude offers three main models, each optimized for particular tasks:
🚀 Claude Sonnet — for everyday tasks

Recommended for: most users
Sonnet is the perfect balance of speed, quality and cost. It’s the default model and is great for:
- Analysing documents and texts
- Working with files
- Everyday conversation
- Creating content
- Educational tasks
💡 Tip: Sonnet covers 90% of a regular user’s needs. Start with this model.
🔥 Claude Opus — for complex tasks

Recommended for: developers and analysts
Opus is officially considered the best for:
- Programming and development
- Deep data analysis
- Complex research tasks
- Creative coding
- Advanced work with code
⚡ Claude Haiku — for fast tasks

Recommended for: integrations and chatbots
Haiku is lower quality, but the fastest and cheapest. Ideal for:
- Chatbots in stores
- Comment moderation
- Quick text fixes
- Simple Q&A
- API integrations
Claude’s advantages over ChatGPT
📚 A bigger context window

The context window is the size of the conversation within which the AI remembers all the information. Claude’s is significantly larger than many versions of ChatGPT.
ChatGPT’s problem: It often “forgets” the context mid-conversation, forcing you to repeat information.
Claude’s solution:
- Remembers more information throughout the conversation
- When it hits the limit, it simply pauses the chat
- Saves you the stress and time of re-explaining
💡 Tip: If you got a lot of valuable information in a conversation, ask Claude to create a document with the key ideas. Use it in new chats or save it to Obsidian.
🎯 Constitutional AI advantages
Thanks to its constitution, Claude:
- Gives more balanced and ethical answers
- Better understands context and nuance
- Avoids “hallucinations” and inaccuracies
- Provides more structured information
Claude’s limitations
💰 Cost and limits
Free plan:
- Only 4–5 requests a day
- Suitable only for getting acquainted with the system
Pro ($20/month):
- Like ChatGPT, but still has daily limits
- Fits most users
Max ($200/month):
- Practically removes all limits
- For professional use
🔄 A combined strategy
Recommended approach: use a combination of Claude + ChatGPT:
- Claude — for deep analysis, learning, programming
- ChatGPT — for quick everyday tasks
- Gemini — for working with the Google ecosystem
Carry key ideas between systems through artifacts.
How to get started with Claude
- Sign up: Go to claude.ai and create an account
- Choose a model: Start with Sonnet (the default)
- First request: Try asking an educational question
- Explore the interface: Pay attention to Artifacts and Projects
Conclusion
Claude AI is a serious alternative to ChatGPT thanks to:
- Constitutional AI — higher-quality, more ethical answers
- A bigger context window — better understanding of the conversation
- Specialized models — each for its own tasks
- Artifacts — convenient work with documents and code
While Claude isn’t perfect and has limits on the number of requests, it excels at deep analysis, programming and educational tasks.
📺 See also: The full Claude AI video review on YouTube
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