Keyword research tools
Tools for finding search keywords, search volume, difficulty and question ideas. Ranked by how often ChatGPT, Gemini and Google AI Mode name each brand, cite its site and put it first when answering 18 buyer-intent questions.
Ranking
Semrush scored highest in this run at 79.9: named in 96% of answers and cited in 44%.
| # | Brand | Score | Mentioned | Cited | Avg. position |
|---|---|---|---|---|---|
| 1 | Semrush | 79.9 | 96% | 44% | 1.65 |
| 2 | Ahrefs | 62.5 | 83% | 20% | 1.93 |
| 3 | Mangools | 20 | 26% | 13% | 3.64 |
| 4 | LowFruits | 17.9 | 22% | 11% | 2.58 |
| 5 | AnswerThePublic | 15.2 | 22% | 2% | 3 |
| 6 | SE Ranking | 15 | 20% | 6% | 2.82 |
| 7 | Ubersuggest | 10.7 | 15% | 4% | 3 |
| 8 | Moz | 9.5 | 11% | 9% | 3 |
| 9 | SpyFu | 8.3 | 11% | 4% | 2.5 |
| 10 | Keywords Everywhere | 8.2 | 11% | 2% | 2.33 |
| 11 | Similarweb | 1.6 | 2% | 2% | 4 |
| 12 | Serpstat | 1.2 | 2% | 0% | 3 |
By engine
Share of each engine's answers that name the brand.
| Brand | ChatGPT | Gemini | Google AI Mode |
|---|---|---|---|
| Semrush | 89% | 100% | 100% |
| Ahrefs | 94% | 67% | 89% |
| Mangools | 17% | 33% | 28% |
| LowFruits | 17% | 22% | 28% |
| AnswerThePublic | 11% | 28% | 28% |
| SE Ranking | 6% | 11% | 44% |
| Ubersuggest | 22% | 11% | 11% |
| Moz | 28% | 6% | 0% |
| SpyFu | 6% | 17% | 11% |
| Keywords Everywhere | 6% | 17% | 11% |
| Similarweb | 6% | 0% | 0% |
| Serpstat | 0% | 0% | 6% |
Prompts used
Each prompt was sent once to every engine, as written:
- What is the best keyword research tool?
- Best free keyword research tool
- Most accurate search volume data tool
- Best keyword research tool for bloggers
- Best tool to find low-competition keywords
- Best keyword research tool for ecommerce product pages
- Best tool for finding long-tail question keywords
- Best keyword research tool for YouTube and Amazon
- Which keyword tool has the most accurate keyword difficulty score?
- Best keyword research tool for PPC campaigns
- Cheapest keyword research tool for beginners
- Best keyword research tool for local keywords
- Best tool to find the keywords competitors rank for
- Best keyword clustering tool
- Best keyword research tool with a Chrome extension
- Which keyword research tool is best for non-English markets?
- Best keyword research tool for content agencies
- Best keyword tool with an API for bulk lookups
Run these prompts for your own brand
The answers behind this table came from the AnswerLine API. The free plan includes 500 credits a month, no card.
Other leaderboards
SEO platforms
All-in-one SEO suites for keyword research, site audits, backlinks and rank tracking.
SERP APIs
APIs that return search engine result pages as structured data for developers and data teams.
Rank trackers
Tools that track keyword positions in search results over time.
Proxy providers
Residential, datacenter and mobile proxy networks used for data collection.
Web scraping tools
Scraping APIs, platforms and no-code tools for extracting data from websites.
AI visibility platforms
Platforms that measure how brands appear in ChatGPT, Perplexity, Gemini and Google's AI answers.
Brand monitoring tools
Media and social listening tools that track brand mentions across the web, news and social platforms.
Content optimization tools
Tools that grade and improve content for search intent, topical coverage and on-page SEO.
Web analytics tools
Website and product analytics tools for traffic, conversions and user behaviour.