Surfer SEO is the most widely used AI-driven content optimization tool for SEO teams. The content editor's real-time scoring against top-ranking pages is genuinely useful: it shows you which keywords appear in competing articles, how long those articles are, how many headings they use, and how your current draft compares. That removes a lot of the guesswork from on-page SEO.
The Essential plan at $79/month (annual, $99/month monthly) gives you 30 articles per month with access to the full content editor and keyword research tools. The Scale plan at $175/month (annual) adds 100 articles, which is where agencies typically land. The add-on costs are worth noting: SERP Analyzer is $29 extra on Essential, and the new AI Tracker for monitoring your brand in AI-generated answers is $95/month more. Build those into your budget if you need them.