Ranked guide · 3 picks
From answer engines to full SEO suites, these research tools tap Claude Sonnet 5's reasoning to help you find, analyze and rank — faster.
The answer engine
Perplexity is an AI answer engine with cited, up-to-date results. On Pro you can run Claude Sonnet for research-grade reasoning over live web sources.
Claude Choose Claude as your Pro model.
Strengths
Trade-offs
AI SEO content research
Frase researches the top-ranking pages for any query and helps you write content that competes — SERP analysis, briefs and AI drafting in one tool.
Claude Frontier-model drafting and rewriting.
Strengths
Trade-offs
The complete SEO suite
Semrush is the industry-standard SEO platform — keyword research, competitor analysis, rank tracking and AI writing add-ons. Essential if SEO is your acquisition channel.
Claude Pairs with Claude for content workflows.
Strengths
Trade-offs