AI won't make a blog worth reading on its own, but it removes the slow parts: outlining, researching, tightening sentences and turning a post into video. Pick one assistant for drafts and one editor for the polish.
Draft with ChatGPT Plus ($20/mo) or Claude Pro ($20/mo); both have free tiers. Polish with ProWritingAid, whose readability and style reports suit long posts, and check facts with Perplexity, which cites its sources.
| App | Free tier | Paid from | Top plan | Best for |
|---|---|---|---|---|
| ChatGPT | Yes | $8/mo | $500/mo | Everyday writing, brainstorming, image generation, casual coding |
| Claude | Yes | $20/mo | $100–200/mo | Document analysis, research papers, nuanced writing, software engineering |
| ProWritingAid | Yes | $30/mo | $36/mo | Novelists, academics, and bloggers who want in-depth style reports (pacing, overused words, readability) on full manuscripts |
| Grammarly | Yes | $30/mo | $30/mo | Non-native and casual writers who want real-time grammar, tone, and clarity fixes everywhere they type |
| Perplexity | Yes | $20/mo | $200/mo | Research with verifiable sources, fact-checking, exploring unfamiliar topics |
| Jasper | No | $69/mo | $69/mo | Marketing teams needing brand-consistent content at scale, SEO content ops, multi-channel campaigns |
| Pictory | No | $29/mo | $199/mo | Content marketers and bloggers repurposing written content into social and YouTube videos at volume |
Monthly prices in US dollars before tax, from each vendor's official pricing (US list price; weekly-billed plans converted to a monthly figure). Updated November 2, 2026
Unlimited text chats on Free and Plus, custom GPTs on Plus to store your blog's style instructions, and image generation for featured images.
Pick it if: you want outlines, drafts and a header image from one tool.
Where it falls short: Output quality varies between model tiers.
Full ChatGPT pricing →Strong at nuanced writing and long-document analysis. Pro adds unlimited projects to keep each blog's or client's chats and documents together, plus Research access.
Pick it if: you write long-form posts from long source material.
Where it falls short: No image generation, and usage caps are smaller than ChatGPT's.
Full Claude pricing →Premium runs 20+ in-depth reports on pacing, overused words and readability, with a browser extension and Word and Google Docs integrations.
Pick it if: you want to see the habits in your writing, not just the typos.
Where it falls short: Free checks only 500 words at a time, and the reports can overwhelm casual users.
Full ProWritingAid pricing →Real-time grammar, spelling and tone fixes everywhere you type, free. Pro adds full-sentence rewrites plus plagiarism and AI-text detection.
Pick it if: you write in many places and want corrections as you type.
Where it falls short: Pro's monthly list price is steep, and its rewrites are generic next to a full LLM.
Full Grammarly pricing →Every answer cites its sources, which makes it quick to check a claim or find a source worth linking. Free includes unlimited Quick searches and 5 Pro searches a day.
Pick it if: your posts make factual claims that readers will check.
Where it falls short: Less suited to creative writing or open-ended chat.
Full Perplexity pricing →Brand Voices, Knowledge assets and marketing agents for teams running SEO content operations at scale.
Pick it if: several writers publish under one brand.
Where it falls short: No free tier, and the per-seat price is hard to justify against cheaper chat tools for a solo blogger.
Full Jasper pricing →Converts blog posts, scripts and URLs into narrated stock-footage videos with AI voices and captions. Starter exports 1080p with no watermark.
Pick it if: you want a social or YouTube video from each post.
Where it falls short: Only a 14-day trial, and monthly billing costs far more than annual.
Full Pictory pricing →AI drafts drift toward safe, generic phrasing; even Jasper, a dedicated marketing platform, tends to sound generic without detailed prompting. Let the assistant handle outlines and research, write the final version in your own words, then run a ProWritingAid or Grammarly pass for clean-up.
ChatGPT if you also want featured images, since Claude has no image generation; Claude for longer, more careful posts and for working from long source documents.
Grammarly for quick real-time fixes as you type, and its free tier is enough for that; ProWritingAid for deeper style and readability reports on full posts.
How we choose: prices come from each vendor's official pricing page and are re-checked every week. We take no affiliate fees, so rankings aren't for sale.