TL;DR
Frase relaunched in January 2026 as a "content operating system for AI search," bundling an AI drafting agent and a Content Guard feature that monitors published pages for ranking decay and can auto-publish revisions, all starting at $49/month with a 7-day free trial. Surfer SEO matches that $49/month entry price on annual billing for its live NLP-driven Content Editor, but restructured 2026 plans around "documents" and only confirms AI-prompt visibility tracking at higher tiers. Clearscope is the priciest entry point at $129/month and the narrowest in scope — content grading and briefs with no full drafting agent or dedicated decay monitor — though it offers unlimited collaborators with no per-seat pricing.
MarketMuse, now owned by Siteimprove following a November 2024 acquisition, no longer publishes self-serve pricing at all, requiring a sales conversation for every tier. Frase's legacy AppSumo lifetime-deal customers were shifted to a frozen version of the platform during the relaunch, drawing visible backlash even as new subscribers rate the rebuilt product highly. For teams wanting both drafting automation and decay monitoring in one tool at the lowest entry price, Frase is the most complete of the three actively self-serve platforms.
Frase vs. Surfer SEO vs. Clearscope: Which Content Optimization Tool Actually Fits Your Team in 2026?
Content optimization tools all pitch a similar story: feed them a target keyword, get back a data-backed brief or score, and rank higher on Google. In 2026 the category has shifted again — most of the major players now bolt on "AI visibility" tracking for ChatGPT, Perplexity, and Google's AI Overviews, on top of the classic on-page SEO scoring. That makes the differences between tools less about "who has NLP scoring" (everyone does now) and more about pricing model, usage caps, and how much of the workflow is genuinely automated versus still manual.
This comparison looks at three real, currently-sold tools — Frase, Surfer SEO, and Clearscope — plus a note on MarketMuse, using vendor pricing pages and G2 review data rather than secondhand blog claims.
Product Overview
Direct answer: Surfer SEO is built around its Content Editor — a live, NLP-driven scoring interface that grades a draft against top-ranking pages for a target term as you write. In 2026 Surfer restructured its plans around "documents" (pieces of content you can create or optimize per month) and layered in its own AI-prompt visibility tracking across ChatGPT, Perplexity, Google AI Overviews, and Gemini at the higher tiers (Surfer SEO pricing).
Clearscope is the most narrowly focused of the three: content grading and briefs built on NLP term extraction, with a content inventory that tracks how existing pages perform against target terms and, as of its current plans, AI-prompt tracking for brand visibility. It doesn't bundle a full drafting agent or site-decay monitoring the way Frase does — it's optimization-and-grading first (Clearscope pricing).
MarketMuse (now owned by Siteimprove, which completed its acquisition of the company in November 2024) built its reputation on topic-authority modeling and content-gap analysis at the site-architecture level rather than the single-article level. As of 2026 it no longer publishes self-serve pricing — all paid tiers require a sales conversation, a direct consequence of the Siteimprove integration (Siteimprove press release, MarketMuse pricing overview, Capterra). Because it can no longer be evaluated on list price, it's referenced qualitatively below rather than in the pricing table.
Quick Answer
- If you're a small team wanting the cheapest entry with automated decay monitoring → Frase, because its $49/month entry price includes Content Guard, which actively monitors published pages for ranking decay and can auto-publish revisions.
- If you mainly want live NLP scoring while drafting at the same entry cost → Surfer SEO, because its Content Editor grades drafts against top-ranking pages as you write, at the same $49/month entry price as Frase.
- If you need unlimited collaborators without per-seat charges and don't need a drafting agent → Clearscope, because it's a flat plan with unlimited collaborators, though its entry price is higher at $129/month.
- If you held a legacy Frase lifetime deal from AppSumo → expect the frozen legacy version, because the January 2026 relaunch moved those accounts off the rebuilt platform.
- If you need site-wide topic-authority modeling and can accommodate custom pricing → MarketMuse, because it focuses on content-gap analysis at the site-architecture level but no longer publishes self-serve pricing since its Siteimprove acquisition.
Feature Comparison Matrix
| Feature | Frase | Surfer SEO | Clearscope |
|---|---|---|---|
| Content briefs / topic research | Yes — SEO research, topic clustering, site audits | Yes — SERP Analyzer, content planner | Yes — Topic Explorations |
| Live content scoring while writing | Yes | Yes (Content Editor) | Yes |
| Built-in AI drafting agent | Yes ("AI Agent," brand-voice drafts) | Yes (add-on AI articles on some plans) | Yes (AI Drafts, capped per plan) |
| Published-page decay monitoring / auto-refresh | Yes (Content Guard) | Limited (page audits, no auto-refresh loop) | No dedicated decay monitor |
| AI-search visibility tracking (ChatGPT, Perplexity, etc.) | Yes, included on every paid tier | Yes, scales with tier (weekly on entry plan, daily at higher tiers) | Yes (Tracked Prompts, capped per plan) |
| Native publishing integrations | WordPress, Webflow, Sanity, Wix, FraseCMS | Google Docs, WordPress | Not a core feature; export/API-based |
| Per-seat pricing | No (seats bundled, extra seats add-on) | Not stated as per-seat on published plans | No — flat plan, unlimited collaborators |
| Entry price (monthly billing) | $49/mo | $49/mo (Discovery, annual) / ~$99/mo monthly-equivalent tier | $129/mo |
| Free trial | 7 days, no card | Not confirmed on current pricing page | None advertised on current pricing page |
Sources: Frase pricing, Surfer SEO pricing, Clearscope pricing
Pricing Comparison
Frase: Starter runs $39/mo billed annually ($49/mo monthly) for 1 seat, 1 site, and 10 articles plus 50 audit pages per month. Professional is $103/mo annually ($129/mo monthly) for 3 seats, 5 sites, and 40 articles/250 audits monthly. Scale is $239/mo annually ($299/mo monthly) for 5 seats, up to 10 domains, and 100 articles/1,000 audits monthly. Enterprise is custom-quoted. Every tier — including Starter — includes the same feature set (SEO/GEO optimization, AI-visibility tracking, site audits, API access); what changes across tiers is volume, not capability. Overage fees apply for extra articles and audits beyond plan caps (Frase pricing).
Surfer SEO: Discovery starts at $49/mo (annual billing) for 120 documents and tracking of 10 pages. Standard is $99/mo (annual) for 360 documents and weekly AI-prompt tracking. Pro is $182/mo (annual) for 360 documents plus daily AI-prompt tracking across multiple models and 5 brand workspaces. Peace of Mind is $299/mo (annual) with effectively unlimited documents (fair-use capped) and daily tracking across all models. Enterprise starts at $999/mo custom. Surfer also sells a standalone "AI Search Analytics" product at $158/mo (annual) for teams that only want visibility tracking without the content editor (Surfer SEO pricing).
Clearscope: Essentials is $129/mo for 50 tracked prompts, 50 pages in the content inventory, 20 topic explorations, and 20 AI drafts monthly. Business jumps to $399/mo for 300 tracked prompts, 300 pages, 50 topic explorations, and a dedicated account manager (drafts stay capped at 20/month). Enterprise is custom, adding crawler whitelisting and SSO. Notably, Clearscope doesn't charge per seat — a 5-person team pays the same $129 or $399 as a solo user, which brings its effective per-user cost below Surfer's or Frase's once a team adds several editors (Clearscope pricing).
MarketMuse: No longer self-serve. Historical entry pricing was reported around $99/mo for its Optimize tier before the Siteimprove acquisition, but current buyers must request a quote (MarketMuse pricing, Capterra).
Who Should Choose What
Direct answer: Choose Frase if you want one platform to cover the full loop — research, drafting, on-page scoring, decay monitoring, and AI-search visibility — without stitching together separate tools, and you're comfortable with a newly-rebuilt product (strong recent reviews, but a real trust scar among legacy AppSumo customers worth knowing about before you buy) (Trustpilot reviews).
Choose Surfer SEO if the Content Editor's live, in-the-moment scoring while drafting is the workflow your writers actually want, or if you specifically need a standalone AI-visibility tracker (its $158/mo AI Search Analytics product) without committing to a full content-editing suite.
Choose Clearscope if you run a multi-person content team and want to avoid per-seat pricing — its flat-rate plans get cheaper per user as your team grows, though its lower AI-draft caps (20/month even on the $399 Business tier) mean it's built more for editors grading human-written drafts than for teams leaning on AI to generate first drafts at volume.
Consider MarketMuse only if you're a larger organization already evaluating Siteimprove's broader web-governance suite, since MarketMuse pricing is no longer available without a sales call and its differentiator (site-wide topic-authority modeling) matters most at that scale.
