Writing and planning
Start with ChatGPT or Claude. Both work well for outlining, rewriting and reviewing long documents.
Short answer: ChatGPT Plus is the most flexible first subscription for writing, planning, analysis and light technical work. Stay on a free plan until a recurring task or usage limit is costing you time.
Choose by the job
Building software
Choose Cursor when you already edit code regularly. Beginners may get more value from a general assistant first.
Research with sources
Perplexity is convenient for discovery. Verify important claims against primary sources before publishing.
Quick comparison
| Tool | Best for | Watch for |
|---|---|---|
| ChatGPT Plus | General writing, analysis, ideation and files | Check current plan limits and factual claims |
| Claude Pro | Long documents and careful editing | Availability and limits vary |
| Cursor Pro | Working directly inside a codebase | Most useful after basic coding skills |
| Perplexity Pro | Research and source discovery | A citation does not guarantee the claim is correct |
| Gemini | Google-centered workflows | Features differ by region and account |
A low-risk way to decide
1. Use the free tier
Test one real task repeatedly for at least a week.
2. Record the bottleneck
Note limits, editing time and mistakes rather than judging from one impressive answer.
3. Pay for one month
Subscribe only when the paid feature solves the bottleneck, then review the result.