AI writing
Free AI writing tools
3 of 6 tools run a free plan. Here is how far each one goes, and what it costs past that.
| Tool | Free allowance | Watermark | Commercial use | Paid from | |
|---|---|---|---|---|---|
| ChatGPTFree | No allowance stated₩0 per month. The official pricing page lists it as ₩0 / month. | Not stated on the pricing page | Not stated on the pricing page | $9.38Go₩13,000 | Sign up |
| Notion AIFree | 1 seats5MB file uploads, 7-day page history, 10 guests, 1 chart | Not stated on the pricing page | Not stated on the pricing page | $10Plus₩13,900 | Sign up |
| ClaudeFree | 5 projectsWeb, desktop, and mobile chat; up to 5 projects; Sonnet and Haiku only | Not stated on the pricing page | Not stated on the pricing page | $20Pro₩27,700 | Sign up |
1 USD = 1,386.02 KRW (2026-09-22). Checked on the official pricing page on 2026-09-22. Bold values are monthly-billing prices; taxes and payment fees excluded.
What if the free tier is not enough?
Enter your monthly usage and see the cheapest covering plan for each AI writing tool.
Open the calculatorTools with no free plan
These are paid-only.