Free · Writing · 5 of 7 tools · updated Oct 17, 2026
Free AI tools to write blog posts & long-form content
Claude is the strongest tool to write blog posts & long-form content you can use without paying, at 85/100. What you get for nothing: Pro $20/mo, Max from $100/mo. 5 of the 7 tools tracked for this job have a free tier, an open-source licence, or are free outright. It is also the top-ranked tool for this job overall, free or not.
Same evidence score as the ranking — GitHub stars, Hacker News mentions, release activity, free access — recomputed nightly, never sold. See all 7 tools to write blog posts & long-form content.
Top 3
evidence / 100
+ Produces natural, editable prose and follows nuanced instructions over very long documents better than most rivals.
− Pro usage limits can run out mid-session on long conversations, and it has no built-in image generation.
+ Q&A searches your whole Notion workspace plus Slack and Google Drive, and AI autofill keeps database summaries current.
− Since 2025 the full AI is bundled only into the Business tier, which is a steep jump for small teams.
+ Reports on pacing, dialogue tags, repeated words and sticky sentences go far beyond what Grammarly checks.
− The volume of reports is overwhelming at first and the desktop apps can be sluggish on long manuscripts.
All 5, side by side
| Tool | Score | Pricing | What you get free | Platforms |
|---|---|---|---|---|
| Claude | 85 | Free tier | Pro $20/mo, Max from $100/mo | web, mac, windows, ios, android, api, cli |
| Notion AI | 11 | Free tier | Included in Business plan $20/user/mo (annual) | web, mac, windows, ios, android |
| PProWritingAid | 11 | Free tier | Premium from $10/mo billed annually | web, mac, windows, chrome-extension |
 Writesonic | 9 | Free tier | no limits published | web, chrome-extension |
 Copy.ai | 8 | Free tier | Paid plans from $49/mo | web |
A free tier counts, and so does an open-source licence you can self-host — both are in the table, so a tool that is only free for a trial is not here.
Head to head: Claude vs Notion AI Claude vs ProWritingAid Notion AI vs ProWritingAid