Best AI tools for writing SEO blog posts

Surfer analyses the pages that already rank for your keyword and, as you write, gives a content score with suggested terms, headings and length. It helps writers and site owners optimise articles for Google and for being cited by AI search tools.

Best for: optimising blog posts for a keyword, building content briefs, improving pages that already exist.

Worth knowing: It is a paid tool for people who publish regularly; it guides your content but cannot guarantee rankings.

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Frase researches a topic, builds a brief from the pages that rank, helps you draft and optimise the article, and can publish to WordPress, Webflow and other platforms. It also audits existing pages for SEO and AI visibility and suggests revisions when a page slips.

Best for: sEO content briefs, drafting and optimising articles, refreshing pages that lose rankings.

Worth knowing: There is a 7-day free trial rather than a free plan, and SEO results take weeks to show.

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Writesonic started as an AI writer and is now an AI search visibility platform. It tracks how your brand shows up in answers from ChatGPT, Gemini and Google AI Overviews, and includes content creation and site audit tools to close the gaps it finds.

Best for: seeing how AI assistants describe your brand, sEO and AI-search content, site audits with suggested fixes.

Worth knowing: It is built for businesses and marketers, with plans priced well above simple writing tools; there is a free trial rather than a free plan.

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