Shortlist · checked Oct 4, 2026
Best AI SEO tools
SEO tools range from full research suites to content optimisers and AI writers. Prices are usually quoted for annual billing, so compare month-to-month rates carefully.
- Lowest listed start
- Ahrefs · $29/mo
- With a free plan
- 1 of 7
- With API access
- 5 of 7
What to compare
- Research suite or single-purpose content tool
- Annual versus monthly pricing
- Free tier or trial length
- API access, often limited to higher plans
- 01
Semrush
Semrush is an online visibility suite covering SEO, keyword research, site audits, rank tracking, competitor analysis and AI search visibility tracking, sold as tiered subscriptions with project and keyword limits.
Best for: Marketers and SEO teams who need keyword, backlink and competitor research in one subscription.
- 02
Ahrefs
Ahrefs is an SEO toolset for backlink analysis, keyword research, site audits, rank tracking and AI search brand monitoring, with paid tiers by projects, tracked keywords and crawl credits plus a free tier.
Best for: SEO professionals and agencies needing backlink and keyword data and optional AI visibility add-ons.
- 03
Surfer SEO
Surfer SEO is a content optimization platform that scores and guides articles against search results and tracks AI search visibility for writers and SEO teams.
Best for: SEO teams and content writers optimizing articles for search and AI answer engines.
- 04
Clearscope
Clearscope is a content discoverability platform for SEO and AI search, helping teams research topics, draft, optimize, and monitor content performance. It tracks queries and pages, supports topic explorations and drafts, and targets marketers who need data-driven briefs for Google and AI answer engines.
Best for: Content marketers and SEO teams producing articles at scale who need query tracking, drafts, and optimization workflows.
- 05
Frase
Frase is an SEO and GEO content platform that researches topics, scores drafts for Google and AI search visibility, and publishes to WordPress, Webflow, or FraseCMS. AI agents, brand voice, and content guardrails help teams audit sites, cluster topics, and monitor AI citations.
Best for: Content marketers and SEO teams orchestrating research-to-publish workflows for traditional and AI search.
- 06
Writesonic
Writesonic is an AI search growth platform that tracks brand visibility in ChatGPT, Gemini, and Google AI Overviews, then helps teams fix gaps with AI articles, site audits, and agentic workflows. It connects SEO and generative engine optimization metrics to content production.
Best for: Marketing and SEO teams monitoring AI search citations who need combined GEO tracking and content remediation.
- 07
Jasper
Jasper is a marketing AI platform with Canvas content creation, brand-governed Jasper IQ, specialized agents, content pipelines, image tools, APIs, and GEO analytics to monitor brand visibility in AI answer engines. It targets enterprise marketing teams automating research, personalization, and campaign production.
Best for: Marketing organizations that need brand-safe AI agents, workflows, and measurement across channels.
This is a shortlist, not a ranking by quality. Tools are ordered by fit for the task, and every price, free-tier and API statement comes from the vendor's own pages on the date shown. Where a figure could not be confirmed it is marked as such.
AI SEO tools: common questions
What is the best free AI SEO tool?
Ahrefs has an ongoing free plan in this list. Free plans change and often cap usage, so check the vendor before relying on one.
What is the cheapest paid option?
Ahrefs has the lowest listed starting price in this list at $29/mo per month. Some prices are quoted for annual billing; each tool's page shows the billing basis.
Which of these have an API?
Semrush, Ahrefs, Surfer SEO, Frase, Jasper mention API or developer access. Check each vendor for API pricing, which is usually billed separately.