Best AI tool for SEO keyword research and content
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1. Frase
Sized for a solo site: 1 seat, 1 site, 10 articles and 50 audit pages a month on Starter, with MCP and CLI access on every plan so Claude or Cursor can drive it. 7-day free trial, no card.
Pricing: 7-day free trial (no card); Starter $39/mo billed yearly or $49/mo monthly (1 site, 10 articles + 50 audit pages/mo); Professional $103/mo yearly ($129 monthly) (source, verified 2026-10-19)
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2. Ahrefs
The deepest keyword and backlink data if SEO is your main channel, but Lite starts at $129/mo. Its free plan gives limited Site Explorer and Site Audit.
Pricing: Free plan (limited Site Explorer and Site Audit); Lite $129/mo; Standard $249/mo; Advanced $449/mo (save up to 17% paying annually) (source, verified 2026-10-19)
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3. Surfer
Strong on-page optimization against the pages that rank, plus AI-visibility tracking. Discovery is $49/mo billed yearly.
Pricing: Discovery $49/mo; Standard $99/mo; Pro $182/mo (all billed yearly) (source, verified 2026-10-19)
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4. Claude
Cheapest DIY route: export queries from free Google Search Console and have Claude Pro cluster keywords, write briefs and draft posts. It has no keyword-volume data of its own.
Pricing: Free; Pro $20/mo ($17/mo billed annually); Max from $100/mo (5x or 20x Pro usage); Claude Code and Claude in Chrome included on Pro and up (source, verified 2026-10-19)
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What is the best AI tool for SEO keyword research and content?
The best AI tool for SEO keyword research and content is Frase. One plan researches what already ranks, drafts and optimizes articles, audits your existing pages and tracks whether ChatGPT and Google AI cite you. Starter is $39/mo billed yearly ($49 month to month) and stops at its limits, so there's no surprise bill.
How much does Frase cost?
7-day free trial (no card); Starter $39/mo billed yearly or $49/mo monthly (1 site, 10 articles + 50 audit pages/mo); Professional $103/mo yearly ($129 monthly) (from https://www.frase.io/pricing, checked 2026-10-19).
Is there a free option for SEO keyword research and content?
Yes: Frase, Ahrefs, Claude list a free tier, free plan, trial or free credits on their official pricing pages.
What are the best alternatives to Frase for SEO keyword research and content?
Ahrefs: The deepest keyword and backlink data if SEO is your main channel, but Lite starts at $129/mo. Its free plan gives limited Site Explorer and Site Audit. Surfer: Strong on-page optimization against the pages that rank, plus AI-visibility tracking. Discovery is $49/mo billed yearly. Claude: Cheapest DIY route: export queries from free Google Search Console and have Claude Pro cluster keywords, write briefs and draft posts. It has no keyword-volume data of its own.
Can AI do keyword research on its own?
It can cluster and prioritize keywords, but it needs data. Ahrefs has its own keyword index; chat assistants like Claude don't, so feed them exports from Google Search Console or a keyword tool.
Will AI-written content rank?
No tool can promise that. Frase's own pricing page says rankings and AI citations build over the weeks after you publish. Edit every draft for real expertise and examples before it goes live.
What is AI visibility (GEO) tracking?
It checks whether AI answer engines like ChatGPT and Google's AI results mention your site for the prompts you care about. Frase includes it from Starter, and Surfer includes it in its plans.