Ahrefs vs Writesonic

Ahrefs is the research index: backlinks, keywords and Brand Radar's 475M-prompt AI visibility database across seven AI platforms, powered by the web's second-most active crawler. Writesonic pairs AI visibility tracking with content execution: three platforms tracked daily on self-serve plans, an AI article writer publishing to WordPress, site audits with automatic fixes and an Action Center. They compete only where the categories overlap, and the chapters below walk every dimension a buyer would price: which AI engines each can see, how the tracking actually meters, what each produces on the content side, what surrounds the core product, and the full published tier lists.

Ahrefs is one of the great research platforms in search, powered by the web's second-most active crawler and 10+ years of web-scale data. Alongside Site Explorer's backlink index, Keywords Explorer, Site Audit and Rank Tracker, it now runs Brand Radar: an AI visibility database of 475M+ monthly search-backed prompts spanning AI Overviews (323M), ChatGPT (31M), Gemini (31M), Copilot (30M), Perplexity (30M), AI Mode (21M) and Grok (6M), with YouTube, TikTok and Reddit source tracking in beta. Their FAQ is blunt about discounts: they never run them.

Pricing model. Lite $129, Standard $249 and Advanced $449 a month (annual saves up to 17%), plus a $29 Starter and a free tier for site owners; full Brand Radar runs $398 (selected platforms) to $699 (all platforms), custom prompt packs start at $50 for 2,500 checks, and Enterprise is $1,499 a month with an annual commitment.

Writesonic is a GEO and content platform used by 10,000+ marketing teams by its own count, carrying SOC 2 Type II, GDPR and HIPAA compliance badges. The loop it sells: track your brand across AI platforms daily, find the prompts recommending competitors, then fix visibility gaps with AI articles, technical site audits with automatic fixes, an Action Center executing on-page and off-page changes, and agentic workflows. Ads monitoring inside ChatGPT and Google AI answers and AI search volume estimation round out the research side.

Pricing model. Starter $79, Basic $199 and Growth $399 a month on annual billing (20% more monthly), all tracking ChatGPT, Gemini and Google AI Overviews with 15 to 50 articles included; Enterprise is custom with all ten platforms and the full Action Center.

Ahrefs. Brand Radar's index covers seven platforms: AI Overviews, AI Mode, ChatGPT, Copilot, Gemini, Perplexity and Grok, an index built from 475M+ monthly search-backed prompts. Claude and DeepSeek appear nowhere on the pricing or Brand Radar pages, and the $398 platform picker lists five options that do not include Grok.

Writesonic. The platforms row reads the same on all three self-serve tiers: ChatGPT, Gemini and Google AI Overviews, in one market (language plus country). Enterprise reads all 10 platforms without enumerating them on the pricing page; Claude and Perplexity appear on no self-serve row.

Summarized: Ahrefs reads index across AIO, AI Mode, ChatGPT, Copilot, Gemini, Perplexity, Grok; Writesonic reads 3 self-serve (ChatGPT, Gemini, AIO); all 10 on Enterprise. On Claude specifically, Ahrefs: not listed anywhere; Writesonic: not on self-serve plans.

Ahrefs. Tracking your own prompts is metered three ways: 5 to 20 tracked AI prompts with 150 to 600 monthly checks on the core plans (updated daily), custom prompt packages from $50 a month for 2,500 checks with per-check overage, or full Brand Radar at $398 to $699. The Google Rank Tracker updates weekly on every tier including Enterprise, with 750 to 5,000 tracked keywords.

Writesonic. Tracking is daily on every tier, with 50 to 200 prompts and 50 to 600 answers tracked per day by tier, plus prompt diversification. Sentiment analysis starts on the $399 Growth tier, and ads monitoring inside ChatGPT and Google AI ships across plans, with AI search volume and Brand Explorer as limited one-time runs on self-serve.

Ahrefs. The Content Kit add-on, from $99 a month, is an AI Content Helper and Grader that aligns drafts with search intent and scores them, with an AI Content Inventory marked Soon. Nothing on the pricing page writes full articles or publishes to a CMS.

Writesonic. The AI Article Writer includes 15, 25 and 50 articles a month by tier, with a $100-a-month add-on for 20 more on Growth, brand voice as 1 to 10 writing styles, content optimization, and a WordPress integration for publishing. Site audits run 10 to 50 a month covering 100 to 2,500 pages each, with automatic AI fixes, and agentic workflows meter as trial runs (10 to 100) on self-serve.

Ahrefs. Classic SEO research is the backbone: the backlink index, Keywords Explorer, Site Audit with 100K to 1.5M crawl credits by tier, and Web Analytics plus Bot Analytics. A GBP Monitor ships in beta; no geo-grid or map-pack tracking appears on the pricing page.

Writesonic. There is no Google organic rank tracker and no local surface: no Maps, geo-grid or GBP tooling on the pricing page. Google Search Console and GA4 integrate for search data, and Reddit plus Google Keyword Planner feed the data sources.

Ahrefs. API access and an MCP server ship on all tiers with rows metered by plan (100 to 500 rows per request, uncapped on Enterprise), plus a Looker Studio integration from Advanced and Report Builder as an add-on. Export rows run 500K to 4M a month by tier.

Writesonic. Integrations cover GSC, WordPress and GA4 on self-serve with Looker Studio on Enterprise; an MCP is listed in the footer navigation and API docs exist. SSO/SAML and user access control are Enterprise features, alongside dedicated Slack and Teams support.

Every cell below was read from the vendors’ own rendered pages as of August 2026. Where a vendor’s public pages neither confirm nor deny a capability, the cell says so.