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contentshake-ai vs lex

ContentShake AI vs Lex — features, pricing, and which to choose for your SEO workflow in 2026.

AI WritingVerified 2025-02-01

Quick Verdict

Best for budgetlex
Best for enterprisecontentshake-ai
Most featurescontentshake-ai
Easiest to uselex

ContentShake AI and Lex represent two different philosophies in AI writing. ContentShake AI is Semrush's purpose-built SEO content machine, designed to pump out search-optimized articles using competitive intelligence and keyword data. Lex takes the opposite approach — a minimalist writing environment that helps you craft thoughtful long-form content without the noise of SEO metrics.

The choice comes down to intent: are you creating content primarily to rank in search engines, or are you focused on quality writing that happens to be AI-assisted? ContentShake AI is the tool for content marketers who need to hit keyword targets and outrank competitors. Lex is for writers who want AI help without sacrificing the craft of writing.

Feature Comparison

ContentShake AI integrates directly with Semrush's SEO database, pulling competitor content analysis, trending topics, and keyword opportunities into your writing workflow. It generates complete articles based on target keywords, suggests content gaps to fill, and optimizes for search intent. The tool includes brand voice training, content calendars, and publishing workflows designed for marketing teams. Lex strips away the SEO complexity and focuses purely on the writing experience. Its inline AI suggestions help you continue thoughts, rephrase sentences, and overcome writer's block without breaking your flow. The interface is deliberately minimal — no keyword density meters or competitor analysis panels. Lex includes collaborative features for team editing and maintains writing streaks to encourage daily practice. ContentShake AI's strength is its data-driven approach. It doesn't just suggest content ideas — it shows you exactly what's working for competitors and how to position your content to compete. Lex's strength is preserving the human element of writing while providing AI assistance that feels natural rather than algorithmic.

Pricing Comparison

ContentShake AI starts at $60/month with a free tier that includes limited article generation. The paid plan includes unlimited AI-generated content, brand voice customization, and full access to Semrush's competitive data integration. For agencies and larger teams, pricing scales with usage and team size. Lex operates on a freemium model with generous free usage that covers most individual writers. Paid plans unlock unlimited AI suggestions, advanced collaboration features, and priority support, but even heavy users can often stay within the free tier limits. The pricing philosophy reflects the tools' different target users — ContentShake AI charges enterprise rates for enterprise SEO features, while Lex keeps costs low for individual creators.

Best For

ContentShake AI is the clear choice when you need SEO-first content creation. If you're a content marketer, agency, or business owner who measures success through organic traffic and search rankings, ContentShake AI's integration with Semrush's competitive intelligence makes it invaluable. It's particularly strong for teams that need to produce consistent, search-optimized content at scale. Lex works best for writers who prioritize quality and readability over search optimization. If you're creating newsletters, blog posts, essays, or any long-form content where human voice matters more than keyword placement, Lex provides AI assistance without compromising your writing style. It's ideal for individual creators, journalists, and content creators who want AI help without AI takeover.

The Verdict

Choose ContentShake AI if search engine visibility drives your content strategy. The Semrush integration alone justifies the price for serious content marketers who need data-backed content decisions. Choose Lex if you're a writer first who wants AI assistance that enhances rather than replaces your creative process. Most businesses focused on content marketing will get more ROI from ContentShake AI, while individual creators and quality-focused writers will prefer Lex's approach.