Claude
Assistant for long documents, contracts and careful writing, with a Project for each matter
| Vendor | Anthropic |
|---|---|
| Category | Chat assistants |
| Website | claude.ai |
| Free plan | Yes |
| Paid plans | Paid plans from $20/mo. Free plan available |
| Models | claude-sonnet-4-5, claude-opus-4-1, claude-haiku-4-5 |
| Updated | 2026-09-22 |
Claude is a chat with Anthropic models that is strongest where you need to read a large document in full and answer with references to specific clauses. It holds hundreds of pages in context at once, so it works through a contract, tender documentation or a policy without chopping it up. Projects keep the materials and a shared instruction for one matter, and Artifacts show tables and documents next to the chat. It writes precisely and without bureaucratic filler in many languages.
Free plan
Several dozen messages a day depending on load, analysis of uploaded files and images, no Projects with large knowledge bases and no extended reasoning mode
Paid plans
| Plan | Price | What you get |
|---|---|---|
| Pro | $20/mo | 17 with annual billing. Five times the messages of the free plan, Projects, extended reasoning, web search, Google Workspace connectors, desktop app |
| Max 5x | $100/mo | Five times the Pro limit and priority access to new features; for people who work with Claude all day |
| Max 20x | $200/mo | Twenty times the Pro limit, the largest quota for heavy work and Claude Code |
| Team | $25/mo | Per seat with annual billing (30 with monthly billing), from five seats. Shared Projects, admin controls, team data out of model training by default |
Tasks it handles well
- Compare two versions of a contract
- Run a risk review of a contract for your side
- Write a structured legal memo
- Write a formal claim letter to a counterparty
- Screen resumes fairly and without bias
- Prepare a reply to a tax authority request
- Draft a personal data processing policy
- Categorize a bank statement by cash flow line
- Write a business letter
- Write a job ad and a job description
- Build a 12-week cash flow forecast
- Explain the numbers to the business owner
- Translate a contract and keep the terminology consistent
- Summarize a long PDF
Most useful for
- Accountant
- Lawyer
- HR manager
- Finance manager
- Manager
- Marketer
- Sales manager
- Data analyst
- Teacher
- Executive assistant
- Logistics manager
- Procurement manager
Pitfalls to watch at work
- On the free and personal paid plans, check Settings, Privacy: training on chats should be off before a work document goes in
- Contracts and correspondence go in only with parties, amounts and details anonymized: [Buyer], [Supplier], [amount]
- The limit is measured by conversation size rather than message count: a long chat with a large file uses up the quota in a few questions, so open a separate chat for each document
- The model states legal references confidently with no guarantee of accuracy: ask it to write [PROVISION, verify] instead of quoting from memory
Billing
Card payment through Stripe on the website, or through the App Store and Google Play. Whether VAT or sales tax appears on the receipt depends on your country and how the account is set up: check the total before confirming. If a card is declined, a different card network and enabled online payments at your bank usually help.
Common problems and fixes
- Claude not working: six causes and what to do
- Claude declines your card: why Stripe rejects the payment and what to change
- Claude usage limits: why the quota runs out after ten messages and how to stretch it
- Claude will not open a PDF or says the document is empty: causes and workarounds
- How to delete your data from Claude and turn off training on your conversations
- Claude for business: company billing, invoices and VAT
Compare Claude with
- Claude vs ChatGPT
- Claude vs NotebookLM
- Claude vs Copilot in Word
- Claude vs Gemini
- Claude vs Gemini in Google Docs
- Claude vs Gemini in Google Sheets
- Claude vs Canva AI
- Claude vs Mistral Le Chat
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