AI Tool Comparison
Frase vs Grammarly
A side-by-side breakdown to help you pick the right tool for your workflow.
Frase
Research a topic against top-ranking pages, generate a brief, draft the article, and audit your site for AI-search gaps, all in one workflow. Relaunched January 2026 as a unified content + AI-visibility platform.
Grammarly
Catch grammar and clarity issues as you write, then let built-in AI agents draft, rewrite, and complete tasks across your apps. Grammarly's parent company rebranded to Superhuman in October 2025.
Bottom Line
Last reviewed: August 2026
Frase and Grammarly both compete in Writing, overlapping most directly on writing. Frase runs on a paid-only plan while Grammarly runs on a freemium model, which alone may settle it if budget or a free tier is a hard requirement. Grammarly carries the higher rating (4.7 vs 4.4), but a gap that size rarely overrides a real workflow fit on its own.
Choose Frase if…
Best for content teams who want a research brief built from what's already ranking, before writing begins, and its edge is pulls the top 20 search results for a keyword and turns their structure into an optimized content brief automatically. Excellent for the research phase specifically, its own AI writer is a secondary feature at best.
Choose Grammarly if…
Best for catching grammar and clarity issues in real time as you write anywhere online, and its edge is built-in AI agents now draft and rewrite across your apps, not just proofread. The baseline writing check most people should already have running.
| Attribute | Frase | Grammarly |
|---|---|---|
| Category | Writing | Writing |
| Pricing | paid | freemium |
| Pricing Detail | $49/mo Starter / $129/mo Professional / $299/mo Scale | Free / $12/mo Pro (annual) / Enterprise custom |
| Rating |
Key Features
Frase
- SERP research
- AI outline builder
- Content optimizer
- Content score
- Team workspace
Grammarly
- Grammar and spelling checks
- Tone detection
- Plagiarism checker
- Generative AI co-creator
- Browser extension
Pros
Frase
- •Excellent SERP-based research
- •Content scoring is accurate
- •Great for content briefs
- •Affordable entry price
Grammarly
- •Works everywhere you write
- •Highly accurate suggestions
- •Improves overall writing quality
- •Generative features are helpful
Cons
Frase
- AI writer quality is just okay
- Limited templates
- Best as a research/optimization tool, not primary writer
Grammarly
- Premium plan is somewhat pricey
- Can be overly pedantic
- Generative features are basic compared to ChatGPT